A battery charger for deep cycle batteries is a device used to recharge the batteries after they have been discharged. The charger is connected to the battery through a set of charging terminals, and it uses a series of charging cycles to slowly replenish the battery’s charge.
20 Best Battery Charger For Deep Cycle Batteries
1. NOCO GENIUS1 1A Battery Charger
Charges/maintains lead acid and lithium-ion batteries (see specification chart)
Start voltage sensor detects dead batteries as low as 1 volt
Force mode allows manual charging of extremely dead batteries (down to 0 volts)
Charges/maintains lead acid and lithium-ion batteries (see specification chart). Start voltage sensor detects dead batteries as low as 1 volt. Force mode allows manual charging of extremely dead batteries (down to 0 volts).
Built-in battery desulfation mode to recover worn-out batteries (Genius 5/Genius 10). Smart indicators quickly detect when the battery charger is connected in reverse polarity, connected to an incompatible battery, or if the battery is failing.
Detachable clamps for permanent charging cable installation. Genius 2D has vehicle direct mount option (includes mounting bracket and strap).
I have several vehicles that I store each (Michigan) winter and have tried most if not all of the other “smart” chargers on the market. It has been frustrating to have batteries die while on those chargers, leaving me to question their advertised performance.
This time, a Delco battery in my Corvette, just barely out of warranty, was full green one day and blinking green (trying to charge) the next day before it got so low it would not allow the (electronic) doors, and therefore the hood, to open.
Eventually, using my 10 amp (non smart) charger the battery would take a charge, then fully discharge (even though out of the car) in about an hour. With a $150 battery replacement the only solution I thought I would try the Noco1.
It took about 2 days for the Noco to go from pulsing red (never indicated a battery fault) to pulsing green, and another 8 hrs to go to steady green. I then unhooked the battery, reinstalled it, and purposely left the charger off overnight.
The next morning the car was fully functional (electrically) and when I re hooked up the Noco it went from pulsing green to full green in about 2 hrs. 3 weeks later it sometimes pulses green but then goes full green shortly after, and stays fully charaged.
THIS PRODUCT WORKS AS ADVERTISED. (I then bought 3 more Noco1’s and a Noco10 replacing the “junk” I had been trusting).
Keeps 12V batteries charged. Turns On and Off as needed. Allows safe charging of RV, deep cycle, or most batteries that may have a long storage period. On-board feature allows mounting of charger nest to battery on collectibles, street rods, and other infrequently used vehicles.
Hardware and mounting brackets are included. 1. 5A trickle charge rate charges in 2 to 12 hours. LED lights indicate power On and charged. Reverse hookup protection. Molded plastic case. short leads for safety that won’t get tangled in moving engine parts.
This little device comes in handy for my riding mower. I have connected to my riding mower to keep my battery from draining and sure enough this device does just that. Before getting this device my mower battery would drain down from the cold and I like to start my riding mower about every two weeks during the winter months just to run it a bit but my battery was draining to the point where it would not start but since having this device hooked up to it I haven’t had any issues.
I like that it’s small because it allows you to put it in just about any space plus the device is protected against oil,water and corrosive liquids. This is a must have for any equipment you have that doesn’t get used much or that you sit for the winter months.
It also has led indicators to let you know if it is charging or if it is fully charged. I have never used this kind of product before but it is very easy to use and instructions are easy to follow.
Acquired this charger for my 1962 Triumph that historically drains my battery over time and doesn’t charge it very well when driven. This is the perfect charger to keep the battery strong for the periods I don’t drive it.
Super easy to install and I really like the feature that when the battery is fully charged the automatically shuts off. Well worth the money!.
This charger is a huge improvement over my old one. It has different modes for charging different battery types, and it has some diagnostics that let you know what is going on with the battery – for example, the polarity is reversed, or the battery won’t take a charge.
The directions are simple and picking the right charging mode is just a push of the button. The only reason it gets 4 stars instead of 5 is the excessive packaging – it is a box, inside a box, inside a box – all of which is then put inside an Amazon box for shipping.
I hate the thought of the resources consumed to make all that packaging, which will likely end up in a land fill even though we put it in our recycle bin.
It can be used for both 6V and 12V lead-acid and 12V lithium-ion batteries. The Genius10 is designed for charging cars, boats, RVs, SUVs, diesel trucks, motorcycles, ATVs, snowmobiles, personal watercraft, lawn mowers, and much more.
It can be used as a battery maintainer to keep both starter and deep-cycle batteries fully charged. It also monitors battery activity for safe and efficient charging without any overcharge. The Genius10 is complete with a built-in battery desulfator in order to rejuvenate underperforming batteries.
Charges lead-acid and lithium-ion batteries up to 230 amp-hours. An improved start-voltage sensor now detects dead batteries as low as 1-volt. And an all-new force mode allows manual charging for extreme dead batteries – all the way down to zero volts.
Built-in battery desulfator to recover worn-out batteries. Smart indicators quickly detect when the battery charger is connected in reverse polarity, connected to an incompatible battery, or if the battery is failing.
The NOCO 10 seems to work well thus far, even in deep discharge situations. However there are only a couple of LED lights to see what the charger is actually doing. I like my Optima Digital 1200 battery charger MUCH better in this regard, as it tells me volts and amps live with a bunch of other info on an LCD screen, as well as the status LEDs, and tells you precisely what it is doing.
Although the Optima is still my favorite charger, it is a considerably more expensive, and higher amperage charger. I have a couple of NOCO chargers, and wanted to try their new one (the Genius 10). Have had no issues with the NOCO chargers I own.
They have performed well in all cases (including -20 degree or lower temperatures). What I like about this NOCO is its ability to charge really dead batteries. Great feature!!! Probably the best feature.
This eliminates paralleling a charger with a good battery, or finding an old school (not smart) charger that forces amperage (which can ruin batteries if not timered or turned off manually once charged).
The size is quite compact for a 10 amp charger. Fairly heavy, but not very bulky. I also like that if the 120V power goes out, when it comes back on, the charger remembers its last settings and continues charging based on those settings (unlike BatteryMinder I have which forgets its settings).
Many cool features like the desulfation recovery cycle, and that fact that you can leave it on a battery permanently, and it will not overcharge. I just don’t like not really knowing exactly what it is doing during the charging cycles.
However, for or a plug and play charger – its great! One button to select a battery type, and go. Nice larger clamps. Wires from charger to clamp seem a little small, but are sufficient for 10 amps. Good product, and good value for the price point.
Should the need arise, I would not hesitate to buy another NOCO Genius 10.
4 weeks after I purchased the 2 bank charger, it will only charge a single battery. One side of this charger no longer works. I am past my return window by 13 days. I contacted the manufacturer with no reply.
So basically, I got a 5 week warranty on an expensive charging system. Now I must purchase yet another system and this one becomes a waste of money. If customer service responded with an offer of help I would’ve appreciated their willingness to help but not a word.
I will select a different brand. They got my money and I got nothing in return. Buyer beware. UPDATE. Just looked thru the other negative reviews on this unit and I found almost everyone one of them are for the same exact reason.
They bought this 2 bank charger and one bank stopped working within weeks to a few months, all after the return window and the mfg. refusing to do anything. I know there are a lot of good reviews out there but the issue of so many having one of the two banks stop working could be a bad batch and one would think the mfg.
would do something but no. Even when you go to their website and select warranty it tells you all about a warranty but does not say how to submit for a warranty. There is not even and address or phone number for customer services on their website.
Its almost a black hole where you get tired and just say forget it.
This thing is cool. I had an old, cheap charger but wanted something that would charge some of the newer type of batteries and 6V motorcycle batteries. I have a lithium in one of my motorcycles, AGM in another one and 6Vs in my old Honda and Kawasaki but no charger that can be used on any of those.
This charger does everything. ALSO, and this is really cool, I tried to start my daughters car that had been sitting in my driveway since she bought a new car a year ago – dead battery. So, I charged the battery with my old charger and the car started but the battery was dead again the next morning.
I figured it would be – battery destroyed – have to buy a new one. Decided to put the genius 10 on it, charged “completely” (per instructions) then went into the 12V REPAIR mode for a few hours until the genius automatically shut off.
The car started great BUT a week later it STILL starts great. I would have lost money on that bet. I don’t know how much longer the battery will last but long enough to get the car sold. The genius 10 repaired that battery.
I’m impressed. Very much worth the money paid. My only complaint: it does so much and I’m so old and stupid it took me awhile to read and understand the instructions. Also nice that it does so many things but easily fits into my tool box.
Its compatible with standard, AGM and deep-cycle batteries, and it automatically detects six or 12 volts making it incredibly easy to use on a variety of batteries. Microprocessor automatically adjusts the amperage rate to charge and maintain, plus it features multistage charging for added precision, safety and battery life.
It monitors and maintains the battery when fully charged and resumes continuous charging when the battery becomes discharged.
Battery would not hold charge after multiple attempts using jumper cables. Waited as long as 1/2 hr trying to build up charge but once the charging cables are disconnected and car turned off, car won’t start.
I then purchased this charger and voila. just like new! It’s been 2 years since and not once I’ve had an issue. Highly recommend this charger. I had 2 other batteries sitting in the garage which I thought needed to be tossed out and I charged them with this charger and they came back to life also.
Money well spent cause I gained 3 batteries ($300+) from this $80 charger.
Unfortunately the charger is smarter than me, so I ended up returning it within hours of purchase. O’Reilly’s was totally supportive and gave me a refund. How the charger is smarter than me: The car battery had drained down to 5.
8V (12V sealed lead acid) due to lights being left on. Charger manual says it automatically determines the battery voltage and then charges to the right voltage, 6V or 12V. Since this is Arizona, and summer time, I was monitoring the voltage with a DMM to make sure it was charging, and not some kind of catastrophic battery fail.
When the charge got to about 6. 2V the charger went into its “Done” state and quit charging. I disconnected it, unplugged it, waited, re-attached. This time it announced a bad battery. Called O’Reilly’s to see if they knew a way to force into 12V mode.
Nope. Searched web looking for a way to force into 12V mode. Nope. Jumper cables got the car started and the battery seems to be doing fine. I think O’Reilly’s is great. Excellent customer service.
I gave it 4 “stars” ONLY because I understand the limitations. You have to thoroughly read the user manual because the “smart”/automatic features make a big difference. Some charging “failures” in other reviews MIGHT be due to the these features.
For example, if while in mainenance mode the charger detects a load on the battery it will automatically turn-off and STOP/abort “maintaining” the battery voltage level. So if you attempt charging the battery while it is connected to a vehicle/RV/etc and there are devices in the vehicle that are drawing power from the battery, then the charger may abort “maintaining” the battery after it has initially charged it.
It will be as though the charger is not connected. That could lead to reduced voltage or even a dead battery over even a short time because the devices will continue to draw power while the charger has aborted maintenance mode and is NOT making up for the ongoing energy consumption by the devices.
The charger might charge the battery to an initial correct voltage, but then instead of “maintaining” the battery voltage it will abort/turn-off and just let the battery be depleted by the load from any attached devices.
For example, my RV has a few 12V devices that unless I manually disconnect them, always “load” the battery and continue to draw power from it. In the past this has not been a problem because prior chargers I used were “dumb” and would “maintain” the battery even if there was an ongoing power drain on it.
Those “dumb” chargers worked fine and kept the battery charged. But this charger is “smart” and will detect that power drain and the charger is programmed to turn itself off because it detected what it was programmed to define as a “failiure” during the “maintenance” cycle.
There is no manual “over-ride”. It does EXACTLY what it was programmed to do, but that does change things for the typical user. Note that while I still rate the value and quality of the charger as high, it is a qualified “4” out of 5.
If you’re dealing with batteries that are 100% disconnected from the vehicle/etc, it’s a nice charger. But if the battery remains connected in a vehicle, you do have to be very aware of the limitations and potential pitfalls of the “smart”/automatic features.
I didn’t recommend it in general because I think most people would want to use an “automatic” charger without having to disconnect the battery from the vehicle. and not have to worry about the caveats of doing so caused by the “smart” features.
References: Page 6 of either of the two user manuals versions: 0099001827-R0. pdf 0099001999-R0. pdf Note: there are differences between the two manuals on pages 4,6,7, & 8. I have only compared the English portion of the manuals.
I think this is fairly comprehensive but I may have missed some differences. p4 1999 version adds FLASHING orange “Charging” LED = ‘in abort mode’ p6 1999 version changes to provide alpha-numeric readout codes instead of just LED color status changes for “Aborted Charge” and “Desulfation Mode” paragraphs p6 1999 version in “Completion of Charge” and “Maintane Mode” paragraphs, 1999 has the Green LED is “ON”, while the 1827 version refers to Green LED “pulsing” (note: the DL15 charger I have PULSES the Green LED) p7 1999 shows alpha-numeric error codes per error in the table.
The 1827 version shows ONLY “Fnn” codes, where “n” =digit. p8 1999 shows in Section 13. enhanced/additional troubleshooting procedures and codes compared to 1827 version.
Digital display for voltage and percentage of charge, Start/Stop interface, and LED indicators and push button controls make this unit easy to use. Features auto voltage detection to easily detect between 6 and 12V batteries.
Automatically selects charge rate for charging and maintaining. Built-in reverse hook-up protection prevents charger from operating if clamps are reversed. Meets the highest industry standards with its Schu Eco Energy.
DOE compliant. Compatible with standard, AGM, gel, and deep-cycle batteries. Rated for 800 CCA.
I use this, Schumacher charger to maintain my car batteries. Besides charging it goes to maintenance mode which improves the life of battery. Main reason, I use this charger because I don’t put enough miles on the car resulting in discharged battery occasionally.
If you drive your vehicle regularly, using this charger in maintenance mode occasionally is good for the battery. I like the charger clips on this device. Well insulated on the exterior. Less chance of accidents (short circuits).
Much lighter weight compared to the standard metal grated ones with the flimsy plastic handles. Has microprocessor technology and selections for different battery types and higher amp charges. Like the other features like dead battery indicator and polarization warning if connected the wrong way.
I read the Schumacher is a high rated company when it comes to battery charging systems. Seen their vast selection of chargers. It was tough to decide which model but you can’t go wrong for whatever specific need of charger you choose.
Hope I won’t have to use frequently but it’s nice to know it’s there in the case of an emergency to get the vehicle started so as not to be stranded.
The Schumacher 1. 5A Fully Automatic Battery Maintainer maintains both 6-volt and 12-volt small batteries, keeping them at full charge using float-mode monitoring. The multi-stage charging feature provides added precision, safety, and battery life.
Float mode monitoring automatically maintains optimum battery charge. Auto-voltage detection automatically detects output. Reverse hook-up protection ensures charger will not operate if clamps are reversed, as LED indicators will flash.
I own a farm and have a lot of equipment. I am also an electronics technician for my other full time job. I have put these chargers on everything I have that has a battery 12 volt and 6 volt. So over the past 5 years I’ve probably bought 20 of these chargers.
They are designed not to over charge your batteries. When you put them on, the charger will slowly increase the voltage induced upon the battery until the max of 1. 5 amps is reached. I have verified this with my voltage and amp meter.
The charger doesn’t always have to go all the way up to 1. 5 amps to effectively charge the battery. The microprocessor in the battery charger controls all of this. This is to protect the battery and to protect the battery from going into thermal runaway.
Once the battery is topped off the charger will shut off and slowly flash green. Once the charger is in this state it is considered to be “floating”. It will monitor the battery until the voltage drops and then it will kick back in to keep the battery fully charged.
I have way too much money invested in batteries to mess around with cheap battery maintainers. This model has been rock solid for me and I’m very happy with the quality. All of the batteries I have these chargers on are in an unheated non insulated metal building and have held up very well.
I have three of these going most of the time. Two of them are five years old and still working well. By keeping them on a battery I have had several batteries last much longer than the waranteed life on the label.
Batteries for the riding mower rarely lasted two years, with the maintainer on during times of not being used the batteries now last three to four years. These only charge when the battery loses voltage, they give it a charge until the correct voltage is met and then it just sits there and waits.
By keeping the battery at max it prevents the plates from getting corroded. I have these maintainers on a riding mower, a motorcycle and a spare battery that I use when I take kids camping. We use a solar panel to charge the battery and our walkie talkies.
The maintainer keeps that battery charged during the winter when not in use. It is a five year battery now four years old and I used it last week to jump start a car that was in a garage where we could not pull a second car close enough to get jumper cables on it.
Use it in an old Chevy I use mostly for winter. The trickle charge works very well. Had mine now about eight months. Main unit tucks nicely inside engine compartment, with the hood down, not closed due to power cord.
Clamps to battery post are small, and they are easy to fasten to the battery posts. It does what I need it to do with no worry. Set it up correctly and your good. There is nothing to press but the plug into the wall outlet.
The All New Genius Series More power. More Performance. The NOCO Genius 2 features improved charging performance and more automation than ever before. Its advanced programming pushes the limits of power-efficiency in a compact size.
No technical knowledge required, the Genius 2 is completely automatic and safely charges any battery, detects damage, repairs them, and actively monitor them for long-term battery maintenance and extended battery life.
A multi-functional design allows you to charge in more ways. Effortlessly charge multiple battery voltages and chemistries. Switch the charger to Repair Mode to recover old batteries or prime a new one.
Use Supply Mode for ECU reprogramming, powering onboard computer systems during battery charging, or powering 12-volt devices. Diagnose and troubleshoot with ease. The GENIUS 2 charger quickly detects when it’s connected wrong, connected to an incompatible battery, or if the battery is failing.
The Genius 2 is perfect for any climate. While charging, this charger will automatically alter its charge based on the ambient temperature to provide a more accurate recharge.
I have a vehicle that doesn’t get driven much, sometimes sits for weeks at a time. I was constantly dealing with no-start situations when I went to drive it. I considered a traditional trickle charger but wanted something that I didn’t have to hook up and unhook from the battery all the time.
I also wanted to avoid having a trickle charger unit sitting on the garage floor or somewhere near the vehicle all the time. This onboard charger is the perfect solution. The unit works automatically, keeping the battery charged and going into “”””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””standby”””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””” mode automatically when the battery reaches full charge.
A light on the outside of the unit lets you know the charging status. Installation was not a major obstacle, but does require that you have a spot under your hood near the battery to mount the unit securely.
For my installation I had to remove the battery and drill a couple of holes in the side wall of the engine compartment, and route the power cord out through the front wheel well. A little bit of work, but a nice install solution that now allows me to plug the unit in with an extension cord without having to even pop the hood.
I recommend that anyone considering this unit first examine under the hood of their vehicle to make sure there’s a good place to mount the unit close enough to the battery to connect the wiring and to run the power cord.
And of course you want to keep the wires away from moving parts — fan belts, etc. If you have a vehicle that needs to get charged regularly, I highly recommend this unit.
With the extreme cold weather that we experienced this winter, our car battery would not turn over when it was -29 one morning. I bought this unit without doing initial research and we didn’t initially use it right away as I wasn’t sure if I should have bought a jump starter instead.
I decided to use this a few days afterward when the temperature plunged again. This unit had the car battery fully charged in a few hours and then went to maintenance mode. No problems starting the car now.
I use it every night. After researching battery chargers, I found that a trickle charger with built in smarts is easier on a battery as it charges it slowly vs a jumper starter that shocks the battery.
Nice and small unit that you can easily travel with as well.
I bough this product for my 1993 Honda Civic. Car has been sitting in my garage for 3 months and I didn’t disconnect the battery. Two weeks ago I tried starting it and battery was dead. I boosted it with GB 70 and it started fine.
I let it run for 30 minutes and shut it off. A week later same problem. I bought the Genius 2 and hooked it up around 6 pm and one light came on meaning the battery was below 25%. Next morning i went to check around 8am.
It was still in the same position. I figured either it wasn’t working properly or the battery was not good. I just left it thinking I would return it the next day. At 8pm I went to disconnect it and the battery was fully charged.
In the end it did take some time. But this car won’t be back on the road till April – May when all the snow is gone. So if your in a rush to charge your battery, this will not be the right NOCO model for you.
But if your using it as a maintainer or a slow charge, then it’s perfect.
Energizer ENC2A – Battery charger/maintainer features 6 volt and 12 volt charging selectivity, with a 7 step smart charging technology that will improve your battery’s life cycle. Use for battery maintenance, charging RVs, specialty vehicles, antique and classic cars, marine deep cycle batteries, motorcycles, lawn mowers, ATVs, snowmobiles, personal watercraft and more.
Maintains battery charge in stored vehicles and battery applications. Includes two connector sets:Battery clips, and battery ring terminals.
I purchased this for my old Ford 8N tractor, which has a 6 volt system. This charger; 1. Does not automatically detect 6 vs 12 volt systems; 2. Does not charge 6 volt batteries at 4 amps. It limits at 2 amps; 3.
Does not detect or respond to ambient temperature. Rather, it has a ‘cold’ setting, not explained in the instructions, that simply lowers the charger output voltage to arbitrarily ‘one-step’ compensate for low ambient temperatures.
Had I known this on purchase I would have made a different choice.
This is a great size and amperage that does a fine job keeping a battery in good shape as long as the power doesn’t go out for even a few seconds. In that case the 6/12 voltage choice blinks until you choose the correct voltage again.
If your battery is not where you see it often, or if you’re out of town for awhile and the power company blinks you’re out of business until you spot it and choose your voltage. If there was a switch to permanently select the appropriate voltage I would give this 5 stars.
Good product for a good price. Does just what I need, charge overnight for a low battery, and maintain in the Winter for my truck, that I don’t use unless it is an emergency, and maintain my lawn tractor battery.
Nice back lit LCD display with icons, 9-Step charging, error codes, and choice of 4 or 8 Amp current.
NOCO GENIUS5UK 5-Amp Fully-Automatic Smart 6V and 12V Charger and Maintainernn Introducing the GENIUS5 – Similar to the G3500, just a lot better. It is 34% smaller and delivers 65% more power. It is also simpler and much more easier to use than previous generation products.
nu2022 Designed for 6 and 12 volt lead-acid automotive, marine, and deep-cycle batteries. This also includes flooded, gel, AGM, maintenance-free and lithium-ion batteries. nu2022 Precision charging – With an integrated thermal sensor which detects the ambient temperature around the unit and alters the charge level to eliminate over-charging in hotter climates and under-charging in cooler climates.
nu2022 Charges up your dead batteries u2013 Will charge dead batteries from as low as 1-volt automatically. For dead batteries down to zero volts you use the all-new Force Mode which allows you to take control and manually start the charging process.
nu2022 Incredibly simple to set up and use u2013 Just plug.
I am not driving my car as much as I used to because of the pandemic and working from home. When I drive it, it’s mostly for very short drives to stores and not long enough to give the battery a good charge.
A few times I got a “low voltage” warning which forced me to go for a longer drive. Between for Noco Genius 2, 5 and 10, I thought the 5 was the best middle ground for price (when on sale) and time to charge.
At first connect, it was clear my car was in need of a good charge. Then moved to charge my wife’s car (her situation is the same as well). Never had to worry since. We’re in Febuary now and it’s currently -31C with the windchill.
Both our cars are in the garage so it’s easy to plug the batteries to the Genius5. I don’t think it is meant to be used outside under the elements. However, there is no arguing to start our cars under the stiff cold.
I’ll plug the cars about every 2-3 weeks. My next door neighbor borrowed it after he woke up with a weak battery one morning and it came back to life. The Genius5 comes with a mounting bracket, but I wish it also came with something to attach the clamps to.
It only hold the unit and the wires are left dangling. I also wish it came with some sort of a case or bag to store it. The wires are long and will tangle with whatever is in the drawer with it. You can dettach the clamps from the eyelets for a more permanent install if you want.
I have not tried the desulfation ability so I can’t comment on that. The Genius5 (and I assume the 2 and 10 as well) is absolutely fool proof to use. It knows if you wired it wrong and won’t cause damage.
The order of plugging the clamps or power cable does not matter. No worries of sparking, causing a short, etc. It’s great not having to worry if the car will start tomorrow or not.
At some point over the winter the charger I was using to keep battery charged stopped working. Went to start my Harley and it was dead, the battery had 3 volts. I needed a good charger that would serve as a charger and maintainer.
While looking around, I found NOCO Genius brand and thought I’d try it. I hooked the Genius up in repair mode and after about 3 hours it automatically switched over to charge/maintain. Battery had 12.
9 volts. Most other chargers, in my experience, can take up to 6-8 hours to fully charge a battery from such low voltage, NOCO Genius 5 brought the battery back to life in easily 1/2 the time. Very pleased with this charger, will be getting a second one to maintain battery on my other bike over next winter.
Amazing value and compact design. In my opinion, you can’t go wrong with this product, it’s just fantastic.
The Blue Smart IP67 12-Volt 25 amp Battery Charger is equipped with built-in Bluetooth, so the status of the charger and the battery can be checked on a smartphone, tablet or laptop. All settings of the charger can be configured with the VictronConnect app The 7-step charging algorithm gets the best out of your battery.
The charger gives the battery the power it needs, maintains its health, ensures better performance and a longer life Charge dead batteries: the Blue Smart IP67 Charger will attempt to recharge a deeply-discharged battery by force-feeding it with a low current.
Normal charging will then be resumed as soon as there is sufficient voltage across the battery terminals The charger is completely encapsulated, waterproof, shockproof and ignition protected which withstand the rigors of an adverse environment The Blue Smart IP67 Charger is waterproof and can be used on devices in your workshop and on motor or marine vehicles, such as (classic) cars, boats, yachts and motorbikes The Victron blue smart charger range are intelligent multi-stage battery chargers, specifically engineered to optimise each recharge cycle and charge maintenance over extended periods.
Hands down the best charger/maintainer I’ve ever used. If you’re looking to just recharge batteries, you can get a lot more features elsewhere. It you love your deep cycle batteries and want to maximize their live span, you can not beet this setup.
Just to be clear, this is not a car battery charger although it will easily do that. This charger is designed specifically for charging and maintaining battery banks. A high quality automotive charger will charge/maintain your battery bank just like this will charge your car battery.
But there is something to be said have the tool specifically designed for the job. I can customize this charger to my battery manufacturer’s specific settings. It maintains my battery bank exactly how my manufacturer engendered it to be maintained.
The build quality is top notch. The bluetooth feature is an added bonus.
I really like this charger. It is fully configurable and it is easy to monitor what’s going on and view charge history on your phone or computer using Bluetooth. I have it permanently mounted in my camper van and use it when solar is not producing sufficient output.
It charges my 200 ah LIFEPO4 battery very predictably and then goes into maintenance mode keeping the battery full but providing output for power consumers such as the fridge. The charger does not have a fan which I suppose would prevent IP67 certification.
So, that’s nice but it also does run very hot when actively charging. I have mounted it in a well ventilated spot yet it gets hot to the touch. It’s not a real problem to me if it does not affect longevity.
Nonetheless, I may just end up mounting an external fan to cool the unit when powered.
These chargers are great use them to charge my batteries when the solar isn’t getting enough sunlight. Works in tandem with the solar. When I’m near regular 110 current I just leave them plugged in. The bluetooth app works great.
Microprocessor technology gives this 12 volt car battery charger the power to charge most 12v batteries including deep-cycle, gel and AGM batteries. Fully automatic microprocessor control feature adjusts the amperage rate to charge and maintain batteries quickly and safely with one press of a button.
High frequency current pulse can be used to recondition car batteries that are weak, sulfated or deeply drained.
After years of trying to remember to charge marine deep cycle 12v batteries for the boat often, and failing to remember, I even tried solar chargers, I found out I was buying new 12v batteries every 1.
5 yrs at $100+ each and I needed a trickle charger. Sound familiar? LOL I didn’t want to do it, BUT, I was tired of buying new 12v batteries! So, I bought the Viking 4 Amp in a HF store for $39. 99, in Sep 2022, (about 2 weeks ago) and used a 25% OFF coupon, because I am Cheap.
I took it home, read all the instructions first (95% safety warnings, 5% actual setup/use instructions and these need improvement, make it simpler). I followed the instructions. the screen went out (no numbers, no lights, no nothing), unplugged everything many times, still nothing.
I checked the battery with multi-meter, after leaving it all hooked up for hours, it was NOT charging anything. I thought it was the old battery, so I then purchased a new battery for $120, thinking it couldn’t be the brand new Viking.
I put the Viking on the brand new battery, same scenario, no lights, no charging, it was worthless. I returned the first Viking to the store (there is a return restocking fee of 20%, however, the cashier waived it for me, since I had been through all the above).
I brought the second Viking home, and WOILA, it works, it charges, it does it’s job. I’d say the main lesson learned is to follow the instructions to the T. 1. Clamp Battery Negative, 2. Clamp Battery Positive, 3.
Plug it into the Wall Outlet (no extension cords), 4. Select correct Battery Type (AGM, STD, Winter AGM, Winter STD) if you don’t know what type of battery you have look on line first and research it and after all that the Viking is supposed to go RED and show volts, the volts and charging meter should slowly increase and eventually turn GREEN while slowly increasing Volts/Battery Meter and then the backlit screen goes off (still showing Volts, Meter slowly increasing or steadily at say 13.
6 volts or whatever number) in what I call Trickle Charge Mode. Now it is working well. Disclaimer: I have only had this about 2 weeks, so as they say. Time Will Tell. So far though, it is working, I’ve verified the charging with multi-meter also.
I would suggest you do the same, so that you can verify your battery is actually being charged/maintained. As always, the HF Staff is helpful and professional.
At first I thought this thing was junk. But it works as it should , if you watch it constantly and your battery is very depleted you will be watching it for days if you have a deep cycle or a high Amp Hour battery or a high CCA battery that is depleted to 10.
5 -12 volts. The charger checks the battery first. Boosts the charge to over 14 volts for bulk charging and then depletes it a little to 13. 2 to 13. 8 volts depending on deep cycle or not and maintains it there.
If it detects a bad absorption rate it will go into repair mode for 1 to 6 hours. By flashing red the entire screen. After it does the repair it will either continue charging or show the bad symble All deep cycle batteries and or deep cycle marine batterys are NOT AGM! I REPEAT NOT AGM most cheaper deep cycle batteys $130 and under are flooded lead acid so charge it on 12V REG if you have a AGM battery it will say AGM on the battery in big letters somewhere.
Winter mode is a great feature for those who have winters 32 and below and are maintaining there battery’s as allot of maintainers will fail so I’m guessing this mode lowers the current and raises the frequency to keep the battery stimulated so it does not freeze and keeps its charge.
With all that said I will not hook this charger directly up to my $91k Cummins diesel megacab pickup truck as a maintainer. And try to maintain 2 85Ah battery,s in parallel. Its cheap and made in China! Remember that.
And its not double fused. I won’t hook this up to my boat either. A battery removed from a car, truck or boat yes. I would however hook it up to my quad, my RV generator battery (not a built in one a nose mounted Westinghouse) that is remove and store in garage etc and a mower id hook it up to.
But I will not use this as a long term maintainer for over the winter. For that you need the best and the best is American made just Google best American made battery charger maintainer and it will come up on AM and the company starts with a N genius.
Anyway for its price point I do not regret buying it as I was in a pinch so ill keep it at my cabin so if someone breaks in and steals stuff it won’t be a major loss. Hope this helped some decide what to do.
This is an excellent product that this user strongly recommends. It is easy to use and works well. Unfortunately it has an incomplete, disordered, less-than-great Owner’s Manual. The Owner’s Manual has all you need to know about safety when working with lead-acid batteries, but it does not clearly, adequately, and correctly explain the Charger/Maintainer’s functions.
This Manual Extension is not complete–it is intended for use together with the supplied Owner’s Manual–but it does add some important and useful information and corrections figured out by this user.
Read it and spare yourself concern about your battery and/or this charger; you will be in good hands. Please turn now to Page 9 of the official Owner’s Manual that is packed in the Charger/Maintainer’s box.
The numbered items below are on that page. #1, 2, and 3 are complete and correct as written. #4 is correct, but add that, as soon as power is turned on, you should immediately press the MODE switch to select the correct one of these combinations of battery voltages, battery types, and Charger/Maintainer modes.
(Note that the following table may not be in the actual order of button pushes. ) VOLTAGE BATTERY TYPE MODE 12V Standard Lead-Acid Regular charging (no “snowflake” icon) 12V AGM Lead-Acid Regular charging (no “snowflake” icon) (“AGM” means “absorbable glass mat”; you’ll know if it’s your$$) 12V Standard Lead-Acid Winter Mode (see #7) (to maintain the charge in a little-used battery; screen shows “snowflake” icon) 12V AGM Lead-Acid Winter Mode (see #7) (to maintain the charge in a little-used battery; screen shows “snowflake” icon) 6V Standard Lead-Acid Regular charging (no “snowflake” icon) DO NOT ATTEMPT TO CHARGE ANY BATTERY TYPE OTHER THAN THE ABOVE WITH THIS DEVICE.
#5 may not occur if superseded by other behaviors as below. #6 This is correct if power is turned on with a battery connected that has a very low terminal voltage (10. 5 V for a 12V battery or 5. 2 V for a 6V battery.
) If power is turned on with no battery connected, the display will stay green indefinitely with “0V” showing. If power is turned on with a battery connected that already is at 12. 6 V, the charger will begin to provide a low-current charge and the screen will soon turn red and flash.
That means that the battery is fully charged and that you should power the charger off. If you do not do so, the red/flashing behavior will continue as will low-current charging. Eventually a higher voltage than 12.
6 V will appear; the red/flashing behavior will continue, as will low-current charging. This charger does NOT turn off the charging current under these conditions; you must do that. #6 WARNING If connection continues, or if power is turned on with a battery connected that is above 12.
6 V, the screen will be red/flashing. Charging may increase the voltage over 13 V; above 12. 9 V only the last 2 digits will show. That behavior persists to at least 13. 4 V. (“3. 4 V” will then show on a red/flashing screen.
) That’s overcharging the battery, which is not good for it, but which doesn’t ruin the battery if you stop doing it soon enough. Be sure to check at least daily as the battery voltage approaches 12.
6 V, then turn off power (and disconnect the charger if desired) before the screen goes red/flashing. Follow the steps elsewhere in this manual to disconnect the charger safely. #7 This is correct, but add: The “Winter Mode” can be set only for 12V Standard or 12V AGM batteries.
It is set by the Mode button; watch for the presence of the “snowflake” icon (see table above). Whe “Winter Mode” is set, the charger will transition to a lower rate of charge as it approaches full charge.
That rate should be sufficient to keep the battery fully charged until it is used again. However, batteries vary, and this charger has no adjustment for the “Winter Mode” charging rate. If you are using this charger to keep the battery ready for starting the car during a time when you are not driving the car very much, you should check the screen color every day to ensure that it is still green.
If it turns red, follow the guidance under “#6 WARNING” to avoid overcharging the battery. If “Winter Mode” is not set, the maximum charging rate is always used by this charger; check frequently for a full charge without overcharging.
A powerful, professional grade battery charger and battery maintenance tool designed to recharge all types of batteries rapidly in workshops, garages or those you simply want the best. Perfect for keeping your vehicles fully charged and maintained during year-round battery maintenance or long-term storage for improved performance and longevity.
Works with all types of 12-volt and 24-volt lead-Acid batteries, including wet, gel, and AGM, or any common automotive, deep-cycle, marine, or maintenance-free battery. Keep your battery fully charged without worry or overcharge.
Simply plug-in and let our advanced charging technology automatically monitor and maintain your battery. Progressive repair mode for heavily sulfated 12v batteries. Use our advanced repair mode to reverse the damaging effects when batteries are left uncharged for extended periods to improve battery performance and longevity.
Convert the battery charger into a 5-amp constant-current, constant-voltage power supply for maintaining onboard computer member during battery changes or as a DC power source. An optimized charge mode for safely charging and maintaining 12-volt lithium-ion batteries, and recommended with use on lithium batteries with an internal bms.
One of the most advanced and safest battery chargers, including spark-proof technology, and reverse polarity protection, plus backed by our 5-year and endless accessories.
i bought this 175$ (thats including tax) charger because i wanted something to have in my car in case i needed to jump start my battery— NOPE— this is a battery CHARGER– you have to plug it in and then waiiiiittt.
and waaaaiitttt. and wait FOREVER. before the battery gets above 25% charged. though. i DOES have a jump start feature — (must be plugged in though) and that works great. so finally i just jumped the battery and drove the car around to charge it up.
of course now i must buy a separate jump start device to keep in my car.
The charger initially started to overcharge my truck batteries going through the 4 stage charge system so I used the 13. 6 mode and it then stopped working after an electrical storm. Caravan charger wasn’t affected, only the Noco Genius mounted in my truck.
An 8 amp (4 amp per bank) on-board battery charger for charging and maintaining two 12-volt batteries independently. Safely charge all types of lead-acid batteries from 20-120Ah, including wet, gel, AGM, and deep-cycle batteries.
Advanced safety protection featuring spark-proof technology, plus reverse polarity, thermal, ignition, and overcharge protection. Rugged and waterproof construction capable of submersion down to 3-meters and rated IP68 and NEMA 6P.
The charger is great. Works as intended. Using it for a fishing boat with two batteries. However, whilst the boat is in the garage and charging, I noticed my AM radio stations not receiving the intended signal but rather a bunch of data RF (radio frequency) on my radio.
FM was fine but AM was a wash. This thing spews out RF like crazy. I walked around the block with radio and still got noise. AM radio in house, probably 100 feet away was not listenable. So if you like AM radio, don’t buy this.
I have a fishing boat with separate batteries for starting the engine and running the trolling motor. When I hooked up the NOCO 2-Bank, I knew that the newer starting battery didn’t need as much charging as the deep cycle trolling motor battery.
I kept an eye on the charger, which shows it progressing through the phases of testing and charging the batteries. Sure enough, the starting battery was charged in a short time, while the deep cycle battery took longer to charge.
When each was charged, the NOCO stopped charging and went into its monitoring mode. I have 2 other NOCO 7200 chargers for my chassis and coach batteries in my RV and have been extremely pleased with them.
They will never overcharge and ruin my two very expensive absorbent glass mat deep cycle batteries as some other chargers have done. I continue to be very pleased with NOCO products.
I bought this on sale, good quality for the price. iv owned for one season and it has seen “ALOT” of use. installed in a fishing boat with dual batt set up. one batery is deticated to outbourd, sound system, live well, bildge pump, lights and fish finder.
the other is isolated from the engine charging system as the engine would not provide enough to maintain second battery. so the second battery only runs a minn kota trolling motor with digital speed control.
so to the point the second battery needs to be fully charged at night after a day off trolling with the minn kota. this is where this product is perfect. it can maintain the engine battery at full charge when boat is not in use.
and my isolated trolling battery can be fully charged agian over night and ready to troll the next day. And as well here is the even better part in the off season i just plug my boat in ,and in the spring my batterys are ready for another year of service.
after 2 months of storage so far my batterys are perfect. as a mechanic i would suggest this to any one serious about batteries.
NOCO Genius Smart battery chargers are some of the safest and most advanced on the market. One of our best, the G7200 7. 2 Amp is designed to charge 12-volt and 24-volt lead-acid and lithium-ion batteries up to 230Ah.
It can also effectively maintain automotive, marine, RV, lawn & garden and deep-cycle batteries. It charges 2x faster than ordinary battery chargers, can repair damaged batteries, power DC devices and is designed for micro-hybrid start-stop vehicles and CANBUS electrical systems.
Guided by an onboard microcomputer, the G7200 monitors battery activity for safe and efficient charging, automatically minimizes energy consumption and provides redundant levels of safety protection, including spark-proof technology, as well as reverse polarity and overcharge protection.
It can remain safely connected 24/7, while its streamlined design makes it ultra-compact, portable and incredibly lightweight. The G7200 features external mounting holes and a rubberized base that avoids surface slipping and scratches, all while remaining impact, UV and water-resistant (IP65).
Intuitive LED indicators provide visual state-of-charge feedback and diagnostic information, even when in maintenance mode. Designed for use on 120-volt 50-60Hz electrical systems, the G7200 includes both X-Connect battery clamps and eyelet terminals, as well as a 5-year limited.
This charger/maintainer works on lead acid batteries of all kinds but what I really bought it for was for charging my 133 Ah LiFePo4 (Lithium Iron Phosphate) batteries. Most regular chargers will not fully charge LiFePo4 batteries because they shut down during the 2nd and 3rd stages of charging to lower voltages.
LiFePo4 batteries need higher voltage input to get fully charged. This charger does it all. It’s also made of solid components instead of cheap plastic like so many other chargers. Other chargers need to be weighted down on the fender or where ever it sits or the light extension cords pulls it to the floor.
I used it on a couple of vehicles. No problems. Prefer this over my old fashion charger. I’ve tried the desulfation/boost thing – I can’t really say one way or the other if it helped anything. It didn’t hurt anything.
In reply to a prior reviewer: Noco apparently claim the charger is rated for 0 to 40 C. The charger, however, has a “cold” charge mode (for below 0 C charging) so this is ambiguous. Nearly all my use of this charger has been below zero to occasionally recharge the battery on a car that frequently sits unused for days on end then only gets driven for short trips (hence never fully recharges the battery on its own and will eventually not start if not periodically charged).
I’ve also used it to recharge a battery overnight at -15C on another car when an interior light was left on in the vehicle all day. I’ll speculate and guess that lower limit on the 0 to 40 C rated temperature range is due to the fact that a fully discharged lead acid battery, where the electrolyte has a very low specific gravity, can freeze closer to 0 C and cannot be recharged in that state frozen hence to be safe they put a 0 C lower limit it.
A charged battery, however, has a freezing temperature down in the negative many tens of degree C (around -70C apparently). My experience with my batteries is that it’s been fine below 0 C.
Very fast charger. Built well. Easy to use. Charged my GSXR600 Lithium battery in no time. Also charged the battery in my Maloo. Very happy with my purchase. Would be good if there was an extension cable with 50amp Anderson plug already fitted.
As I have a couple of car’s that have Anderson plug’s fitted for ease of jumping when needed as Batteries are in the rear in hard to access places when needing that quick jump. Being able to connect to.
those cars with ease to charge would be an awesome welcome.
Features and benefits: 12 and 24 volt battery chargingproperly charge virtually any lead acid battery typefully automatic operationadvanced multi-phase charging processenhanced maintenance mode for ideal long term storagethe power and precision of pro-logix in a 24 volt portable unit.
Plus, the pl2410 features 12 volt operation to add versatility. It delivers fully automatic operation, it is easy to use and delivers a proper, customized charge to every battery it services. Intelligent, beneficial, safe and versatile – it is an ideal universal battery service tool.
Plus, with the ability to properly charge virtually any lead acid battery type, it is the only charger you will need. Flooded, agm, gel cell, spiral wound, marine and deep cycle batteries all can be charged right with the pl2410.
An important thing to be aware of with this charger: Once it is done with its bulk and absorption charging phases and goes into its float or “completion” phase, it will not see or compensate for any load or other cause for voltage drop that your battery may experience.
In other words, once it has completed these initial phases of charging, the battery can discharge completely and the supposedly “fully automatic” logic in this charger will not see it or apply additional charge or otherwise compensate or protect the battery in any way.
It will just continue to apply the tiny float input and assume that doing so will eventually complete its cycle. Out of curiosity, I discharged my deep-cycle battery to 50% state-of-charge while the charger was in this mode and it was clueless and attempted no response.
This makes it far less useful and not protective for any applications in which the battery being maintained may experience a load that does not correspond to the charger’s logic (RV’s, alternative-energy battery, etc.
) as the unit simply does not contemplate that possibility.
Meet the all-new GEN5X2. Similar to our GENM2, only better. It’s 27% smaller and delivers 43% more power. A 2-bank onboard battery charger rated at 10 Amp (5 Amp per bank) for 12-Volt batteries, including marine, boat, starter, and deep-cycle batteries.
Independently charge and control each battery bank with selectable charging modes – including 12-Volt, 12-Volt AGM, 12-Volt Lithium, and 12-Volt Repair Mode – for all types of lead-acid and lithium-ion batteries.
I bought this last year after my on board charger went out on my boat. The great thing about this unit is, set it and forget it! I have three batteries on my boat, one for starting and 2 deep cycle batteries for my trolling motor.
The small size of this unit along with it’s ability to recognize different technologies (I have an AGM starting battery and regular sealed lead acid trolling batteries) makes it ideal for me to just plug it in when I get home from fishing knowing that the batteries will be ready to go next time.
One bank would work, the other would not. The bank that worked did exactly what it was supposed to do. Saw that the battery was charged and went into Maintenance mode. The bad bank made a noise and then just rotated through the lights.
I may give it another try, could just be bad luck on my part.
This unit is fantastic I am able to charge my Agm batteries as well as my lithium and lead acid cell batteries all at the same time the assistant at Canadian Tire. Sold me on buying that model charger his knowledge made the sale and he was spot on with his information thank you sir.
OptiMate 1 Duo, the easy-to-use battery maintenance device for the high-tech battery in your motorsport vehicle – guarantor for healthy lithium or lead batteries. Ideal for 12V lead-acid and 12. 8V/13.
2V lithium LFP (LiFePO4) batteries. Delivers 0. 6 amps of charging current, recommended for servicing smaller batteries. Charges and provides long term maintenance – Simply connect the battery, the OptiMate 1 DUO does the rest, no monitoring required.
I’ve been using Optimates since their release and having the dual purpose model made perfect sense to keep up with advances in battery technology. The unit is very compact and comes with all connectors/cabling required.
It took a couple of minutes to secure to the wall, another couple to connect to my battery and has functioned perfectly ever since. Good batteries are expensive and keeping them in top condition extends their life, resulting in a bike that always starts and a battery that will not require replacement, with the attendant expense.
I regard Optimates as a necessity not a luxury and know, from personal experience, that these units last for years without any trouble whatsoever. Buy one and ensure reliable starting regardless of temperature/weather/climate.
You need this charging/maintenance unit and your bike will thank you for the good treatment.
Really useful kit to have in your bike garage. Keeps the battery topped up during those months when you might not ride it so much. Simple to use and to fit the quick-fit cable. I zipped-tied mine to the rear subframe near below the battery.
Handy croc clips so you can fit to other bikes too. I was going to buy a new battery but bought one of these – it brought my original battery back from the dead.
I didnt have a lithium battery charger. Used this opitmate to charge a new car battery thats lithium rather than the usual acid battery. Its only a trickle charger but it worked well Simple to use with good quality leads and disconnecting plug you can leave permanently on the car.
Lights on charger tell you whats happening. Good product. M.
The DCC12 series of battery chargers are the most effective way to charge your auxiliary or house batteries from an alternator/starter battery. Compatible with a wide variety of alternator types, the DCC12 offers correct charging for AGM, Flooded, Gel, and even Lithium deep cycle batteries! These chargers also feature a 3-stage battery charger and multiple electronic protections.
Owners can feel confident that their batteries are being charged optimally and automatically. Easily install the compact, yet sturdy, DC1212 on RV’s, commercial vehicles, boats, yachts and many more applications!.
I bought this in May 2021 to charge my 240 AH LiFePO4 trailer battery when on the road traveling. I installed a Renogy 2000W PSW inverter in the trailer at the same time with the intention of running my refrigerator on 120v while on the road.
This is much safer than using the refrigerator on propane, especially when coming in to a fuel stop with the open propane flame in proximity to potential fumes at the gas pumps. The unit installed easily and works perfectly.
My refrigerator uses 25 amps of power and this unit easily keeps my battery fully charged while on the road. It works seamlessly with the 400W of solar I have on my trailer roof. The charger adjusts to the needs of the battery and protects my expensive lithium battery bank from over and under charge.
You can easily set it up for any type of house battery from flooded lead acid to LiFePO4. The unit is well built but I am critical of the very small terminals. Size 1 terminal lugs do not fit on the terminal blocks without some minor modification.
That is unacceptable because the larger cable is needed due to the long runs between the vehicle battery and the DC/DC charger mounted near the house battery in the trailer. Other than that shortcoming, the unit has performed perfectly over about 6000 miles of travel this year.
My house battery is always in tip-top shape, even when traveling at night when solar is unavailable. Use an Anderson connector between the vehicle and the trailer and you’ll have the perfect setup. Buy the correct size cable and good quality, ,correctly sized fuses to avoid tripping issues.
I initially bought circuit breakers and ended up replacing them with fuses after having tripping issues. Fuses work perfectly and I have not tripped a circuit once since I installed them. Follow Renogy recommendations on cable and fuse sizing and you’ll be fine.
You’ll always arrive at your campsite fully charged and ready to enjoy the day or night if you use this DC/DC charger. Buy with confidence.
Works very well to recharge a camper battery from the tow vehicle 12 volt feed. Would have been 5 Stars, except: Even after protracted discussions with Tech Support, the mounting drawing on page 8, “Mounting” of the downloadable Owners Manual is INCORRECT! In fact, mounted as shown on page 8, the direction of fan driven air flow through the DC-DC converter flows from up to down, not down to up as shown.
I have mounted my unit vertically as shown in the inaccurate Mounting drawing, and the fan driven airflow in my unit does indeed flow up to down, which is not optimal for a cooling flow. The novices I spoke with in Tech Support didn’t really know which way the airflow went, and refused to acknowledge the inaccuracy of the Mounting drawing.
I assume that the reversed air flow won’t harm my unit, but if it does, I’ll be returning it, even out of warranty, claiming incorrect mounting instructions. Why not acknowledge this issue and correct the User Manual??? I”ll be glad to discuss this further with knowledgeable technical persons at Renogy.
This is a fine product, but the Manual and front line Tech Support needs improvment.
This is better than just using a relay isolator as I tried one of those and then it kept switching on and off. Hysteresis is needed for those and I could not find a happy place for the smart relay. The relay could work for some systems but not mine.
The charger has a signal that turns it on. I would say that the terminal block to tie the connections too should be completely covered so as to not allow accidental shorting and seems a bit weak. Find wires that are as flexible as possible so as not to put too much strain in the terminals is a good idea.
(not stiff wires) The plus and minus is somewhat isolated though but tops are exposed. I covered min up. I think the temp range should be extended higher. Maybe the fan keeps it cool enough? but it gets hotter in a car than 50C sometimes in some places.
Also customer service is unresponsive. Emailed them twice and no response. The terms in the manual for setting the dip switches may be confusing as battery companies may use different terms. But all in all so far so a good charger and I am charging my two AGM batteries with the charger.
I recommend a relay to signal when the car is on to start the charger. Also I recommend a manual switch to disable the charger when car is on. You never now what may happen.
The GENPRO10X2 is designed to charge and maintain up to two (2) 12-volt lead-acid and lithium-ion batteries, including flooded, gel, AGM, and deep-cycle batteries. Each 12-volt battery bank provides up to 10-amps of pure charging power, plus doubles as a battery maintainer and battery desulfator.
Included is a GENPRO10X2 20-Amp 2-Bank Waterproof Onboard Marine Battery Chargers (120-240VAC), Self-Tapping Mounting Screws, User Guide. ISO 8846, and 33 CFR 183. 410.
As long as the weather is cool in early morning works great. When weather warms up,75 or so one bank charges, other side keeps shutting down and lights just flash. My old model worked like a charm for years, wet acid type.
My old marine charger went bad for some unknown reason and I was expecting to have a considerable expense to replace it. The NOCO 12V 20A was exactly what I needed to replace the old one. but at a price that didn’t break the bank.
It installed quickly and easily and, hopefully, is continuing to do its job as i write this review. Good product (so far) at a good price.
The Black & Decker battery charger and maintainer features 6 volt and 12 volt charging selectivity. Use for battery maintenance, charging RVs, specialty vehicles, antique and classic cars, marine deep cycle batteries, motorcycles, lawn mowers, ATVs, snowmobiles, personal watercraft and more.
Maintains battery charge in stored vehicles and battery applications. Fully automatic, provides a charge when needed, stops charging when battery is fully-charged or topped-off. Built-in circuit protection guards against overcharging, reverse polarity or short circuit.
These have worked great, use on atv, lawn mowers, even on 35hp tractor when not used for long periods. All have kept batteries charged and in good condition. I believe the battery life has been extended.
Lawn mowers, and tractor has this on all winter in N. Dak. long winters, and all star up great in the spring. Will buy more when and if needed. Only thing is, they use to come with cig. lighter plug and they don’t anymore.
worked great to charge through that socket on ATV, and some lawn equip. , great product.
In reading your description of the battery charger I missed the part that said: Features ? Circuit protection against overcharging or short circuit. why did you question this feature? If I had read this before I ordered two (2) of them I would never ordered them.
As a result I have two chargers that I now have no confidence in. I already have two chargers that do not support Circuit protection against overcharging or short circuit, so now I have four of them.
The conclusion of a battery charger for deep cycle batteries is that it is a great way to keep your batteries charged and ready to go. This type of charger is designed to work with deep cycle batteries, so it is important to make sure that you have the right type of charger for your needs.
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