A charge controller is a device used to regulate the charging of a battery. Solar charge controllers are used to regulate the charging of batteries from a solar panel. They prevent overcharging and may protect against overvoltage, which can reduce battery performance or lifespan, and may protect against undervoltage, which can prevent the battery from being fully charged.
20 Best Charge Controller For Solar
1. Renogy Rover Elite 40A MPPT Solar Charge Controller
The Rover Elite series of MPPT charge controllers give you the most efficient charging for countless 12-Volt and 24-Volt off-grid solar applications. Compatible with an assortment of batteries, including Lithium, the Rover Elite MPPT charge controller utilizes powerfully smart tracking technology to maximize solar charging energy to your battery.
Additionally, the Rover Elite MPPT is equipped with multiple battery, controller and solar protection features that give you peace of mind and an optimized system you can trust.
Bought this for my toy hauler which had the stock Jaboni charge controller and 300w panel. Replaced it with Renogy elite for better capacity and Bluetooth. The instructions were very well written. Build design was quality and superior.
Bluetooth worked as described. The weight of the controller was light enough to be installed on RV panel walls. I will be replacing the stock inverter in the future and I will be adding Renogy panels.
It auto detected by dual 6v lead acid batters (combined for 12v RV application). The Bluetooth I bought separate has plenty of range to my phone.
I purchased this unit to charge my deep cycle AGM battery. The unit worked perfectly during a full day of testing. It is easy to set up and has a nice display. Overall it looks very durable and has a large heat sink.
It performed very well and I’m happy with the purchase. However, there is only one drawback. This unit does produce some radio interference, which affected my handheld Ham radios. It’s not a deal breaker, but just be aware of the potential QRM.
My system is a 305W, 36V panel with two T105 batteries in series in our 5th wheel. I installed the controller right after receiving the it and have been monitoring it daily ever since. I live in Arizona and have not had a lot of cloudy weather, but have it positioned so it only gets sun about half of the day.
The temperature has gotten down in the 20s a couple of nights and has been in the 30s at night for over a week. The day temps have been in the 40s and 50s in those days. I have ran the heater to keep our 5th wheel above 65 during the day.
The controller has worked flawless in bulk charging, boost charging and boost return rate. The highest wattage I have seen out of the panel is 210 watts. I don’t like the DC Home app as well as the Renogy BT app.
Will hate to see Renogy BT go away. It was an easy install of the Rover Elite 40A MPPT Solar Charge Controller and battery temperature monitor and as of now would highly recommend your products.
Midnite Solar Classic 250 MPPTThe MidNite Solar Classic MPPT charge controller is the most advanced controller on the market. It comes in three standard models (150, 200 and 250 volts) which will charge up to 72 volt battery banks using solar, wind or hydro power.
The 250KS model will charge up to 120 volt battery banks. The model number corresponds to the maximum operating voltage that the controller can handle on the input side. The Classic is also the safest controller available due to its built-in ground fault and arc fault protection.
No other controller offers the built-in arc fault protection. This means that the MidNite Classic is the only controller that fully complies with the 2011 National Electric Code regulations without having to add additional equipment to your system.
Not only is the Classic the safest, but it’s also one of the easiest to set up and use.
Got by with the china $100 mppt controllers and they are not bad but this is a very very nice piece of equipment. Well worth the extra. I am 100% off grid and this along with a samlex inverter I have a quality inverter and charger that passed inspection and i feel is reliable and safe.
It is not too noisy and i love to see it purring along where i set it. Its becoming clear most batteries die from undercharging so i set this and check how I am doing with a hydrometer and change settings to find the sweet spot.
I am confident this charger will allow me good battery life if I do my part.
The Midnite Classic is a superb product! It has curves for SOLAR, Hydro power & Wind applications. It is also possible to program a curve the fits your needs, if the canned curves are not quite right! I would have been over $600.
00 ahead if I had purchased my Midnite Classic first instead of trying to use a Solar Controller to do a hydro job! Cheap isn’t always best!.
Hooked it up to a Hurricane 110vac wind turbine after rectification via diode block to DC voltage. Worked well. Takes a little time learning how to program it for optimal wind power harvesting. The Hurricane wind turbine 110vac is being used in a low wind area for that little bit of extra power during low sun and Stormy weather.
Featuring a bright blue back-lit LCD displaying system information including error codes the Voyager 20 amp charge controller is engineered to be of world-class quality. Not only is it waterproof but it is also equipped with advanced PWM technology suitable for 12V and 24V off-grid applications and compatible with 4 different battery types including Lithium! Ensure your system’s longevity and stay worry-free as the Voyager also has you covered with multiple solar panel battery and controller protections.
I purchased this to replace the Wanderer charge controller on our 100W Renogy solar suitcase because I needed to: 1) have a waterproof charge controller so I do not have to worry about sudden rain storm when in use; and 2) have the ability to charge both Lithium and Lead Acid batteries.
The only issue in this retrofit is that the temperature sensor is way off. like 50º lower than the actual temperature. It was off on the Wanderer as well, but usually within 10-15 degrees. Therefore, using a temperature sensor with either of these two is pretty well useless.
I’ve been using the 10A for about six months with no problems. It is connected to my solar powered trike and is out in the weather 24 hours a day. I have not had any problems with it even when it rains or with high humidity.
It is connected to a 24v 36aH battery pack and charges to full in less than a day on one 255 watt poly panels. I plan to upgrade to the 20a in the near future and switch to mono panels and lithium batteries for this ongoing project.
I recommend this to anyone who wants a small all weather charge controller.
I purchased this to replace the controller on my 100W solar suitcase, an upgrade for Lithium compatibility. Even when charging lead-acid batteries it seems to perform about 10% better than the non-waterproof controller I replaced.
The display is useful and easily read. This form factor fits in the standard height afforded by a two-panel suitcase. This was my best option since MPPT controllers I am aware of are too large for solar suitcase mounting.
The Samlex 30A Flush Mount Solar Charge Controller (SCC-30AB) regulates current and protects your batteries from over-charging. Features of this 4-stage Charger include: LED status indicators, digital LCD monitor and 8 charge settings for most battery types.
Charging is further regulated with the optional DC-BTS-A-C Battery Temperature Sensor.
Good panel but several issues with my application. First, when installing this in a wall DO NOT trust the mounting template that’s included in the box. I used the template and followed the cut-out pattern precisely only to realize when installing the panel that the cut-out was too big! I placed the cut-out up to the back of the controller and confirmed that the template was about 10% larger than the panel itself and none of the screw holes even lined up.
I had to patch the cut-out to make it smaller and found myself fuming with frustration. So make sure you match the template up to the controller to make sure Samlex didn’t screw up. Second, the suggested battery settings for my batteries (vented, flooded, lead acid) will not work with the inverter in my camper.
My inverter shuts down when the input voltage is over 14 volts and the Samlex controller was putting out 14. 6 volts during it’s absorption stage and was tripping my inverter. To correct the issue I had to use the setting for sealed non-vented batteries which puts out 14.
1 volts during absorption allowing my inverter to continue operating. Unfortunately this setting eliminates the equalization feature and isn’t the recommended setting. Third, the decal they place on the front of the display is already curing up at the edges and where the screw holes are so I had to use some super glue to keep the edges and corners down.
Fourth, the controller generates interference on the 12v power system that is picked up by the radio and TV. I was getting a hum out of the speakers when the controller was charging. I had to install a noise filter/choke (additional purchase) on the camper stereo and the television RCA outputs to eliminate the humming noise.
Overall the controller seems to work okay and looks nice mounted flush on the wall but I am disappointed with the attention to details and the functionality of the controller for my application. I was expecting more when I made this purchase.
I put one of these onto my travel trailer almost two years ago and it works flawlessly. I have 3 – 250w / 24 volt panels through this into 4 Crown 6-volt deep cycle batteries. In the full summer sun tops out around 28amps so I’m pushing this controller near its max of 30amps.
It’s ability to handle the heat in here in the desert is a big plus as the travel trailer will see temperatures in excess of 118f on the inside sitting in the driveway. It’s great that it is a PWM controller as those are best for mobile as opposed to stationary applications.
As I understand it MPPT controllers do not like to be moved around as it shortens their life. Just be sure that air can flow behind it and don’t mount it next to a heat source. I just bought this as a back up because in case of EMP or CME to go into a faraday cage which appears to be more likely everyday.
Nice quality construction and seems to work fine. Perhaps not the complete functionality of a Bogart Engineering Trimetric solar controller and battery monitor, but the price is a lot less and the dip switches allowed me to get very close to customizing it to the specs recommended for my Trojan deep cycle batteries.
Only the equalization voltage was a little lower than recommended. The reviewers who complained about the decal on the front coming loose did not know that it is not a decal. there is a clear protective plastic sheet over the face that you are supposed to remove after installation!.
Battery Tender 021-1162: Solar Charger Controller, 5-45 Watts, 3 amp Maximum, 12 V, Each – Harness the power of the sun with Battery Tender! Using Battery Tender’s patented Super Smart Charging Algorithm, Deltran Battery Tender solar controllers let you convert your existing solar panel into a solar charger.
These controllers feature a usable input range between 5-45 watts!.
Installed in battery compartment of RV to keep house batteries charged along with solar panel I received as a gift. In the short period I have been using this product it has performed just as I expected of Battery Tender product which I have used before on a Motorcycle I had owned.
The Coleman 8. 5-amp solar charge controller handles up to 127 Watts of power from a 12-volt solar panel. This controller prevents any overcharge of a 12-volt battery. LEDs display charging and charged status.
I purchased the 8. 5 amp Coleman controller for my 45 watt panel. The panel produced around 20 volts in full sunshine. Plugging in the controller had no effect whatsoever on reducing the output. I tried several of my old Coleman controllers, and they all worked fine.
I returned the controller and bought two more, in the hopes that one of them would work. Nope. Indeed, judging by the way the controllers were packed, it looked like someone else had tried them and returned them.
This ain’t rocket science, and it’s a matter of two red and black wires. They just don’t work.
This is an excellent value if your power needs are not too great or too complex. I have this charge controller permanently wired into my camper, with one 30 watt panel permanently connected on the roof, and a second 30 watt panel that I can connect via pigtail and orient as needed to point to the sun.
That way, I have one panel charging all the time (when the sun is up), and the second for additional power during camping trips when parked more than one night. Whether connected to either one or two 30 watt panels, this small, inexpensive controller works very well.
I used it on a two week trip through Alaska (I live in Yukon) in August, and in conjunction with my panel(s), and of course the charging from my vehicle when driving, it kept my single Group 30 battery at or near full charge all the time.
Whether two 30 watt panels is enough for you will depend upon your needs. This controller is rated for up to 8. 5 amps, or 127 watts in total. The LED lights show when the controller is charging, and when it is not (because the batteries are fully charged).
When there is insufficient sunlight to produce a charge, neither LED is lit. I could easily tell what the controller was doing at any time. Note that this is a simple design, which tries to keep your batteries between 13.
0 and 14. 2 volts. This works fine for seasonal use in an RV, so long as your batteries are always kept near full charge, so that they do not sulfate. This will not replace a more sophisticated AC-powered battery charger, which has a proper “float charge” feature for long-term storage, It will also not rejuvenate heavily sulfated batteries, which will need more than 14.
2 volts to remove the sulfation. However, if you just need a controller to keep your batteries near full charge during the summer camping season, then this will likely meet your needs One small peculiarity of this, not necessarily a problem, but something to be aware of: If you have the controller connected to panels, but not connected to a battery at the other end, both LED lights blink.
This is annoying, and I think could possibly (I’m not certain) be harmful to the controller in the long term. I wired a toggle switch between one of the solar leads and the controller, so that I can disconnect the controller from the panels.
I turn that switch off whenever i disconnect the battery from my camper’s wiring.
For a basic 12V charge controller without any bells or whistles this product does what it is designed to do. It comes with fairly detailed installation instructions however the simplicity of the install, combined with the labelling on the controller makes messing this up fairly difficult for even the most novice.
When hooked into the system it is a “hands off” product and does what it needs to without additional inputs or extra tasks. The indicator lights are a nice feature to let you know what is going on however if you wanted any further diagnosis of charge levels or amount of draw you will need to add additional hardware so I feel that it is a miss for all but the most basic of installs.
Mounting is a basic single keyhole type cutout in the back which; once again; serves its purpose but doesn’t feel as secure as it could especially if it was to be used in a mobile unit like an RV (not my situation but it is a note).
When you’re on the road for days or even weeks in your RV, being able to harness the sun’s energy with your solar panel can provide you another level of independence that’s perfect for your wandering heart.
And with the Wanderer solar charge control from Renogy with 30 amps and 12 volts, you’ll be able to maintain the perfect amount of charge no matter where you go. A negative ground controller, the Wanderer ensures compatibility with any negative ground system to easily ground any system.
The batteries only charge the perfect amount without overcharging with the 4-stage PWM charging, meaning the controller won’t overload, short circuit or reverse polarity. Compatible with sealed, gel, and flooded batteries, this controller features LED lights that effortlessly let you know the status.
Best of all, the pre-drilled holes help to make mounting in any secured location a breeze, so you can quickly install and get back on the road.
I have had the Li 30A PWM in my Lance Camper for over a year now. It’s powered by a Renogy 100 Amp Panel. This little wonder makes sure my Dakota 12v 100 AH LI (sorry renogy) is optimized while in Solar charge mode.
When on 120 v shore power you need a progressive dynamics converter inverter to make sure your expensive battery receives the best charge it can get to assure optimum LI life of over 10 years. So really you say? Yes, Really! I’m selling this tried and proven treking Camper and got a new one and just bought the exact same system for my new Camper which has a 100 W Panel already.
I will add another to extend my off grid capability. This charger controller can handel up to 400 watts coming to it and manages how your battery receives all that sun power. Oh and be sure and get the Blue Tooth module.
It does not get better than this for less than a tank of Gas – Come on?.
I bought this charge controller a few months back for a small car-based portable setup used for camping and helping offload some of my home loads to off grid. I am pleased with the controller’s ability to charge my 55AH SLA AGM battery with the 100watt flexible Renogy panel I also bought.
The system works well and as I intended in that sense, and it’s super lightweight. However, I am disappointed by the USB outputs. They are listed at 5V2A, but I can never get them to output anywhere close to 2A under any charging circumstances.
I have a USB power meter and have tried cell phones, battery packs, and even a raspberry pi. none can seem to pull 2A from this device. Those same devices easily pull 2A from wall chargers listed with the same 5V2A specs.
I was hoping to use a Raspberry Pi on this system for a project, but the Raspberry Pi always throws undervoltage warnings, so I bought a small DC to 5V2A USB board instead, and it works directly from the battery with no problems.
Contacted Renogy support, but was told 5V2A are the absolute maximums and that my performance is not a sign of a bad unit, which also helps explain why the voltage usually hovers around 4. 9V rather than 5V.
Do not expect quick charging times on the USB ports as many quick charging systems use voltages above 5V. It’s a slow trickle charge at best.
It’s truly amazing what this little controller can do, but beware: it’s not waterproof (mount inside), and the wire terminals are very flimsy. The directions for attaching wires are quite confusing (to loosen and tighten it says to turn in the same direction).
After reading other reviews, I realized you need to turn the terminal screws fully counter-clockwise to open up the terminal, then turn the screw clockwise to tighten. If you follow the directions included, the wires just fall out with minimal pressure.
Also, be careful not to over-tighten the screws or they will break or strip. I like to use #10 wire for 12-volt DC at minimum, but these terminals only accept #12 or smaller. Other than this issue, it’s a nice, very inexpensive unit for small applications.
This control interfaces with the Victron range of MPPT Charge Controllers and gives access to performance information. It can also be used to program the charge controller. A VE Direct cable (not included) is required to make the connection to the MPPT controller.
The MPPT Control lets you see the status and setup all MPPTs that use a VE. Direct communications port. The new MPPT Control is mounted in the same housing as the BMV energy monitor View live status information View historical data Programming interface included Additional information on Victron Blog Datasheet This monitor can show you how much your panels generated today, or this month.
The 30-day history shows information like daily yield, minimum & maximum voltages and currents. Important information about the length of charge stages such as bulk, absorption & float during a specific day can also be shown.
With such extensive information the user can gain a considerable insight into their system.
Its a good device, does what it says it does. I didnt like the fact that they didnt at least include a starter VE. direct cable with it. Cmon, how much would that cost? The other thing they ought to consider is mounting options.
Id guess a lot of people like me really need to surface mount it, and creating that mounting was time consuming and unnecessary. Take a clue from the Blue Sea Systems 6006. It can be mounted three different ways, right outta the box.
Look at all the YouTube videos where people are mounting these things to plywood of OSB boards. It could be so much better with a few additional plastic pieces that wouldnt cost much at all.
I am using mainly Victron products on my solar setup in a RV. They all seem to be of good quality and at a reasonable price. The controller does a good job of giving instant feedback on charge rates and battery voltage, it is a simple plug in with no extra power needed getting its power from the solar controller ( some models of controller need extra power for the light).
I was a bit disapointed that it did not come with the latest software which holds a 30 day history but now I think that the 2 days it does hold is enough. You can update the software but I will not bother.
A solar charger gathers energy from your solar panels, and stores it in your batteries. Using the latest, fastest technology, SmartSolar maximises this energy-harvest, driving it intelligently to achieve full charge in the shortest possible time.
SmartSolar maintains battery health, extending its life. The SmartSolar charge controller will even recharge a severely depleted battery. It can operate with a battery voltage as low as 0 Volts, provided the cells are not permanently sulphated or otherwise damaged.
By constantly monitoring the voltage and current output of your solar (PV) panels, MPPT (Maximum Power Point Tracking) technology ensures that every drop of available power is rinsed out of your panels, and harvested for storage.
The advantage of this is most noticeable when the sky is partially clouded, and light intensity is constantly changing. Remotely control and monitor the extensive features of your SmartSolar MPPT charger with built-in bluetooth by pairing it with your smartphone or other device via VictronConnect.
All Victron Energy MPPT Charge Controllers are compatible with the Color Control GX: The Color Control GX provides intuitive control and monitoring for all products connected to it.
The Victron range of Charge Controllers are the most configurable charge controllers I have come across, and the configuration is easy to understand. They can be configured for AGM, GEL, wet/flooded Lead Acid, and importantly today, Lithium chemistry batteries.
The Victron Charge Controllers are the only Charge Controller I have come across that allows you to configure the charge termination Tail Current for Lithium batteries. Configuration is simple with the inbuilt Bluetooth and the Victron Connect app on a mobile device or computer, with the Bluetooth Dongle required for non-inbuilt Bluetooth devices.
The Victron MPPT works as it should to harvest the maximum energy from a panel, and I have found the Charge Controllers can carry a lot of panel power as long as the max panel volts and short circuit amps rating of the Controller is adhered to.
For peace of mind The Victron Charge Controllers also come with a 5 year warranty, and their technical support in Australia is excellent, either by phoning Victron, or by asking questions on the Victron forum.
Looks to be a very well made product that should stand the test of time. I particularly liked the ease with which you can monitor what is happening in real time by using the bluetooth app. I found the bluetooth range to be good.
I had no problems connecting to the unit and it was reassuring to see that it automatically updated its firmware. It was such a pleasure to have a comprehensive user manual in comparison to the poorly written scraps I have received with cheaper PWM controllers.
Comparing it to my old PWM controller on a cloudy day it was clear that it was more throughput. The only down side is perhaps the weight and bulk of the product, however this seems to be the nature of MPPT controllers at this power handling capability.
I have seen some reviews complaining about the wiring ports being to small and too close together but I did not find this to be a problem even with heavy gauge wire. The clamping mechanism to hold each wire is very effective and non destructive.
I bought this to make a portable power generator. Essentially, I put a 100ah lithium battery and this controller into a tool box. The controller is half the size of my Epever MPPT and fits perfectly into the box.
The Bluetooth is fantastic. It paired instantly with my phone and it’s great to see what’s going on with the system over time. This 100/20 model was very cheap from Lowenergie. I r ally wanted the 100/30 but the 60 saving was impossible to ignore.
I love the fact that I can use 12v panels, 24v panels or even a single 40v 400w house panel.
Protect your 12-Volt batteries from overcharge and discharge with the Sunforce 7 Amp Charge Controller. Handling up to 105-Watt of solar power and 7 Amps of array current, this charge controller works with 12-Volt solar systems and maintains 12-Volt batteries in a fully charged state.
This product provides for maintenance free protection for your solar panel(s) and batteries. The yellow charging light indicates battery charging and the green light indicates a full-charged battery.
Simple bulletproof and effective for a small solar panel. I’ve used this model for more than 10 years with cheap amorphous solar panels. It has performed as intended and after installation it can be ignored for years.
I bought a cheap Harbor Freight solar panel system and threw away the charge controller. Using three of these charge controllers for off the grid lighting in our vintage trailer “compound”. The Sunforce unit is simple, bulletproof and does the job, 24/7/365.
This is the 4th Sunforce charge controller that I have purchased. I own a diesel truck and heavy equipment shop and I have built solar chargers for equipment that sets around a lot. The first of these that I bought is has now been in service for over 3 years.
Been keeping my Freightliner yard horse batteries at full charge even when the engine has not been run for 2 or 3 months. I’ve been coupling this controller with a 50 watt solar panel.
These are good quality hassle free it gets the job done I recommend this brand over others out there 3yrs still going strong. Just make sure you cover them if placing outside for they are not whether proof.
I installed the Victron 75/15 BlueSolar and BT module a couple of months ago as part of a complete re-vamp of the solar installation on our camper. Combined with a Renogy 100w panel, I’m getting great results on keeping the house battery charged, and the data and control provided by the VictronConnect app is a huge improvement over the primitive info I had available before (a charge-indicator LED and a volt-meter).
The unit is mostly easy to install (more on that later) and functions brilliantly. There are a few minor flaws that cost the overall review 1-star: 1) The Battery/PV connection points use the screw-down terminal sockets where you insert the bare-end of a wire into a slot and tighten the screw.
Maximum is ~10AWG that will fit into this hole. If you’re attempting any sort of parallel installation (either parallel PV panels, or in my case two parallel input cables so that I can swap between hard-wired and the panel detached from the roof and run with a long cable), you will need to get creative or use an outboard terminal block.
Zero chance of jamming two braided 12AWG wires into one hole. I REALLY wish Victron had used a terminal block which accepted ring terminals. Most people could use a crimp tool, so this isn’t a high barrier to a quality installation.
The other issue with this slot-terminal system is that if you have the controller mounted low (like down in a utility cabinet, near your battery, per the instructions), it can be very hard to see the slots to correctly insert the wires.
I’ve taken to dis-mounting the controller any time I need to deal with the wiring, then re-attaching it to the wall. Bummer. 2) The connector for the Bluetooth module is a small multi-pin flat connector that does not lock very securely.
I have accidentally knocked it out on a couple of occasions just by putting tension on the cable. (And see above re: difficulty re-attaching cables if you can’t see the bottom of the controller. ) A locking connector here would be great.
Some folks may opt for the other Victron unit that has built-in BT, but apparently the MOSFETs in that unit aren’t the same, so it isn’t strictly “outboard” vs “built-in” BT as a comparison. 3) The VictronConnect app overall is good, but has some usability issues.
If you de-focus the app at all (i. e. switch to any other app, even briefly), it forces you to re-sync to the controller when you re-open the app. While trying to do something like read a Battery datasheet to transfer the critical charge parameters (max current, max voltage, etc.
) to the Battery setup, this was a huge pain, as simply switching between the browser to see the parameters then switching back to the Battery setup in the app forced me to re-sync on EVERY context switch.
This means re-selecting the controller (from a list of one, I guess some folks have several?), then re-selecting the Settings block, then re-opening the Battery tab, etc. etc. for each item. 4) As a general rule, blinking lights should be for things that demand your attention.
The Bluetooth module blinks a bright-blue LED whenever you are NOT connected via BT. (And see #3 – this happens constantly!) I wanted to place this module someplace easy to see (so I could diagnose issues at a glance), but at night this blinking LED is bright enough to be annoying, so my choices are to bury the module inside a cabinet where it will not be visible, or to put a spot of tape over the LED – either solution nerfing the whole “at a glance” convenience.
Great unit. Solidly built. I purchased it for a 100w panel that i had purchased for my sailboat. My first foray into solar power. I confess the original Charge Controller I purchased with the panel was a cheap one made of plastic.
The wire connections to the Controller would not stay attached, even though I stepped them down to # 10 gauge. Infuriating! The replacement Victron product had great instructions and is built solidly.
One complaint: same as the previous Charge Controller, twice now a wire has come loose from the Charge Controller box. This should not happen. The compression screws and plates should grab the wire more securely.
I have really screwed them down hard now, but I still find myself checking them every once in a while while underway in a sea.
Let me start by saying I’m one of those people who researches everything before a purchase. I found out about this Bluesolar line of controller by perusing a solar forum for a similar project. There aren’t many reviews unfortunately which is a shame because this thing is awesome.
This is Probably the best MPPT charge controller under a hundred bucks. It feels very well built and is just slightly thicker than my cheap pwm style controller. I’m getting so much more power from my panel now vs the pwm.
Victron claims much better efficiency vs other mppts due to the higher speed tracking. It seems like it makes calculations and adjustments every second or so to keep up with constantly changing cloud cover.
I would highly recommend the Bluetooth module with this line of controller. It lets you live view exactly what the controller is doing from your smartphone as well as a 30 day history. It can also Export to a csv file which is nice.
The Schumacher SPC-7A Charge Controller defends against overcharge/discharge damage in solar panels and 12V acid-lead batteries and can handle up to 7 Amps of solar array current and up to 100 watts of solar power.
Featuring an easy-to-use design the unit features helpful LED indicator lights to identify high voltage low voltage and charging. Includes controller with mounting holes and user manual. Recommended for use with Schumacher solar products.
If we presume that red always goes to the positive terminal on all batteries, and black goes to negative terminal on all batteries- I installed the Schumacher battery terminals on my battery red to positive and black to negative.
The connector on the battery when instaled inthis manner protects the positive terminal from inadvertent short and leaves the negative end bare metal and exposed. This is the way the battery is connected to all Schumacher brand battery chargers.
When the battery (red cable positive) is connected to the solar charge controller sold above, the connector force the red cable (positive) to connect to the negative wire on the solar charge controller- a short.
This is a defective product as sold. I am surprised it has not been recalled as a fire hazard. I did not return mine because I left it hooked up and indeed the insulation on the battery wires melted.
I use this with a 12 volt, 2. 4 watt solar panel to keep my RV engine battery charged when it is in storage. The solar panel did not have a built-in controller so purchased this to make sure the voltage was being controlled before getting to the battery.
This plugs in to the cigarette lighter receptacle and then the solar panel plugs in to it. Has worked very well. Battery has stayed charged.
Original Review – June 2014 I used the Schumacher charge controller after having a disappointing experience with a competing model from battery tender. The battery tender model gave me a fast flashing yellow light that indicated that the charge controller was defective.
Home Essentials Direct gave me a full refund. I purchased two of the Shumacher controllers. The first one went to use right away and is excellent. Notice that it includes the connectors on the charger, the connectors are clearly labeled, and the charge allows for a Battery connection, solar panel connection, and a load connection.
It also provides LED status lights to aid you in your diagnostics and panel placement (it tells you when you have a low and high power orientation to the sun). I have also purchased solar chargers from sun force (that I like, but not as much as this one).
The sun force 7a model lasted two years, and then needed to be replaced. Updated Review June 24, 2014 The second charge controller was used with a 50w panel (the charge controller is rated to 100W). I plugged it into the panel with full sun and none of the lights on the charge controller were lit.
Keeping it plugged in, I checked the wiring. The charge controller started to smoke, the smoke was coming from the opening where the wires exit the unit. I picked up the controller and it burned my hand.
I unplugged all wires and Home Essentials Direct agreed to exchange it. Because I like the design, I am going to give it another try.
A solar charger gathers energy from your solar panels, and stores it in your batteries. Using the latest, fastest technology, SmartSolar maximises this energy-harvest, driving it intelligently to achieve full charge in the shortest possible time.
SmartSolar maintains battery health, extending its life. By constantly monitoring the voltage and current output of your solar (PV) panels, MPPT technology ensures that every drop of available power is rinsed out of your panels, and harvested for storage.
The advantage of this is most noticeable when the sky is partially clouded, and light intensity is constantly changing. Remotely control and monitor the extensive features of your SmartSolar MPPT charger with built-in bluetooth by pairing it with your smartphone or other device via VictronConnect.
If your installation is connected to the internet Victron Remote Management Portal (VRM) provides access to the full power of your MPPT, anytime, anywhere; both services are free to use. For remote installations – even when there is no internet connection or phone signal nearby – you may be able to monitor your MPPT by bluetooth-pairing with a LoRaWAN (long-range wide area network) device, available optionally.
I purchased this charge controller to see if it would bring in more power than the one I was currently using which was the Tristar 45 PWM controller. There is a lot of mixed information out there about whether MPPT actually makes much difference or not.
Some say that they increase power by as much as 30 percent and some say that this only rarely happens. Because of the mixed information, I put off buying an MPPT controller for a couple years. I have now had this controller through a summer, fall, and winter in Colorado.
The Tristar PWM controller that I was using would typically peak at about 350 watts of power input and this would drop considerably during the winter months. After installing the Victron MPPT controller, the peak watts moved up to about 450 watts which is a 28% increase in power output.
More importantly, during the colder winter months (its now January 2019), the Victron MPPT increased its peak power output even more with peak input watts of 500 or more getting to the battery. Sometimes I have seen it as high as 600 watts.
The reason for this increase during winter is that as solar panels heat up their voltage drops. As they cool down the voltage goes up. So during winter, when the panels are cold the voltage goes up a lot and the Victron MPPT charge controller can turn that extra voltage into battery power where PWM controllers can not.
As a result, with the Victron MPPT controller, my power in summer and winter are nearly identical. During summer the charge hours are longer but the input is lower. During winter the charge hours are short but the cold solar panels voltage is way up and put out more power than they do in summer.
I highly recommend this charge controller to everyone but for people in colder climates this type of chage controller is a must have. My system is 6 Renogy 100 watt monocrystaline solar panels hooked at at 24 volts to the Victron charge controller which is hooked up to a 12 volt LifePo4 battery system.
This little box seems to be aimed at professional solar installation folks. I am not that, but I managed to get it to work great (so far). The device itself works right out of the box, once you figure it out.
The enclosure and the wire clamps are super sturdy. The Bluetooth app is a really nice feature, though not exactly self-explanatory. (It does prompt me when the controller needs a firmware update, and takes care of that for me, which is pretty cool.
) It would be substantially more awesome if I could get this controller to connect to Wi-Fi. But the instructions and online instructions are decidedly not awesome. They should be re-written by somebody who knows what theyre doing.
And the true test, for me anyway, will be whether or not this thing continues to work in cold Michigan weather. (My HQST died one winter day with zero warning or explanation. Now its a doorstop. ) I checked this SmartSolar devices specified operating temperature range, and Im not going to be outside that range.
But just saying, lets see if it survives the winter.
C-Series Solar Charge Controller – 40 Amps PV charge, diversion and load controller The C35 and C60 are field configurable for 12 V and 24 V operation. The C40 may be configured for 12 V, 24 V, or 48 V operation.
C35, C40 and C60 charge controllers can be used as a charge, diversion, or load controller and come with a standard multi-color charge status LED face plate. A Controller for Virtually any DC Charging Source.
The C60 is a fully solid state, microprocessor-driven controller that is UL and cUL listed. C Series controllers may be configured for PV battery charging, or DC load control or DC diversion operation.
Whatever the charging source, a C Series controller is sure to meet your DC controller needs. Silent Microprocessor Control-All C Series controllers have a powerful microprocessor at their core which increases system performance and maximizes battery life.
I am using this charge controller to manage dump loads on my off-grid battery bank. I am happy with its operation, but it feels overly simplified. It would be nice to be able to adjust the set points without removing the cover, for example.
Also, there is no way (that I have found) to change the parameters of its Absorb Cycle. Since I am running this as a secondary controller, there is an Outback controller that regulates the absorb time and voltage.
The problem I am having is that if I need to power off the xantrex after it has gone through absorb there is no way to send it back into float mode – and it will just wait until the primary controller does another absorb cycle.
That means it could be waiting all day to reset, and not using the sun to heat my hot water tank (my dump load). I find that if loads come on and interrupt the Outback too much, sometimes the Xantrex will not even enter into float.
This is also an issue if i want to equalize, then dump power, as it will also want to go through absorb all over again. If the engineers are reading this: it needs more buttons. Something I can press to force it into float mode.
With adequate current available from our charger, the C40 maintains battery charge to within a few tenths of a volt. The application is a battery back-up system on a remote ham radio repeater. We have two 200 AH batteries with charge current supplied by a 70 Amp DC supply.
The D-Star repeater system is connected directly to the batteries. AC power for the computer and accessories is developed by a Xantrex sine-wave inverter, also connected to the batteries. The C40 is set to bring the battery charge to 14.
5 Volts and then allow it to float down to 13. 5 Volts. These are the levels recommended by the battery manufacturer. As the manual says it should, the green LED indicator on the C40 flashes when battery voltage falls below the float level.
The number of flashes in the sequence tells us where the C40 is in its charge sequence. When charging is complete, the LED is constantly on.
This workhorse PWM charger is very well built and reliable. It has all the controls you need. It is meant to be used with conduit or flex cable as you would for building code installations. Dont use outdoors without housing though.
If using beyond 10amps, provide ventilation for the heat sinks.
NBQ3KVA24VMPPTLW1V0 3kva Mppt Off-grid Solar Inverter Ac Charger Professional Solar Controller, [POWERFUL CHARGING DESIGN]- High quality 3000VA 24vdc battery-based pure sine wave solar inverter with 230Vac output design for power standards.
Both 50Hz and 60Hz load can be supported through LCD programming. [SMART BATTERY CHARGER]- The pure sine wave i nverter is of smart battery charger design for optimized battery performance, also of cold start function.
Low cost and easy installation. [MPPT FUNCTION APPLIED]- Every panel is working at the maximum because of MPPT function, improving the efficiency of the entire solar power system. Low power consumption.
[PROFESSIONAL LCD SETTING]- Via LCD setting, you can set configurable input voltage range for home appliances and personal computers and configurable battery charging current based on applications. [MORE PROTECTIONS APPLICATIONS]- Designed with 6 main protections are includedreverse polarity protection, short circuit protection, over temperature protection, over-load protection, low voltage protection and over voltage protection.
Offers power all kinds of appliances in home or office environment. 3000VA Hybrid Solar Inverter Powerful 2400 Watts car inverter continuous DC to AC power for multi-purpose charging for your vehicle.
Smart Battery Charger The pure sine wave inverter is of smart battery charger design for optimized battery performance, also of cold start function. Low cost and easy installation. Strong MPPT Function With MPPT function, every panel works at the maximum, improved the efficiency of the entire solar power system.
Low power consumption. Comprehensive Setting LCD LCD setting shows clearly and accurately battery real-time voltage, working status of public power, inverter and battery. Multi-protection Design 6 main protections are includedreverse polarity protection, short circuit protection, over temperature protection, over-load protection, low voltage protection and over voltage protection.
Wide Applications The pure sine wave inverter can power all kinds of appliances in home or office environment, including motor-type appliances such as tube light, fan, refrigerator and air conditioner.
3000VA Hybrid Solar Inverter With AC Charger Solar Controller MPPTThis is multi-function inverter/charger ,combining functions of inverter, MPPT solar charger and battery charger to offer uninterruptible power support with portable size.
Its comprehensive LCD display offers user-configurable and easy-accessible button operation such as battery charging current. AC/Solar charger priority ,and acceptable input voltage based on different applications.
– Please note – Professional maintenance personnel dismantle the inverter/charger only. This inverter/charger can only be used singly. Place it in the clean conditions, and install it in well ventilated places.
Please install appropriate external fuses/breakers. Make sure switching off all connections with PV array and the fuse/breakers close to battery before inverter/charger installation and adjustment. Powerful Charging Design Smart Battery Charger MPPT Function Applied Professional LCD Setting More Protections Applications Package ContentSpecificationsOperating Temperature Range0-55Inverter Output Power2400WDC Input24V DC, 100AAC Output Voltage230V, 50Hz, 13AAC Charger Mode – Input230VAC, 50Hz, 17.
7ADC Output24V DC, 30A/20ASolar Charger Mode – Max. Solar Charging Power600WSystem Voltage24VDCMax. Solar Voltage(VDC)75VDCPackage Content1 x Solar Inverter1 x Communication Adapter.
This piece of kit is a bargain for what it actually is. I have a 48v lifepo4 battery bank with roughly 16kWh of total capacity. This inverter is able to charge those batteries at 60amps which is better than lifepo4 chargers that cost over £500.
It says its not suitable for lifepo4 batteries but if you disable equalisation and set your BMS on your batteries correctly then this will do a great job of charging the batteries. I currently have the 230v AC input fed by a 10kw contactor controlled by a cheap smart plug.
I get the charger to switch on at night between the hours of 2am and 6am (cheap EV tariff) and then i use the power from the batteries during the day to supplement my electricity usage. On the plus side with powercuts due this winter i will have a substantial amount of back up battery power if i need it.
Really great bit of kit. Only complaints are the slots cut in the bottom to allow cable entry. It would of been better it if was a plate with knockouts on it so you can chose what type of glands you want to use to terminate the cable into the unit.
Purchased this unit to replace my chinese inverter/charger that came with my solar system , the solar controller part of the system failed after 18 months. first thing i noticed it was almost identical in appearance , with the only difference a heat sink mounted on the top instead of an internal fan do not know if that is any better or not ? it has to 2 lower fans same as my previous inverter/ charger and the display was a little different.
installed in 20 mins wired up the same as original the sparky did not even charge me. been almost 2 weeks an it is working fine keeps the battery charged and runs the house boat during the day. i can only hope that this one will last longer than the one supplied by a solar shop with my solar system.
At first I was happy with the unit, it charged with solar and ran my well but when i tried to water my gardens it was a disappointment. Not one month old! The ac power won’t run for more than 10 minutes then it acts like it over heated.
I reached out to the suppliers and haven’t heard anything about how to fix it or where to send it or getting a replacement.
The Coleman 7 amp charge controller (68012) by Sunforce is a great choice for charging Flooded, AGM, and Gel batteries! With a maximum voltage output of 14. 2V output the Coleman 7 amp charge controller will safely charge your gel cell batteries.
It can handle up to 105 watts of solar power, and will protect your batteries from over charge and from over discharge. The controller comes with ring terminals for easy hook up.
This charge controller is being used to control the current from a solar panel to my lead-acid battery. It is working great now for a couple months. Stops charging when the battery is fully charged to keep from over-charging.
The LED indicator lights for charging and full charge only work when the solar panel is producing power. This keeps it from discharging the battery with an LED when there is no sun. This controller is just the right thing for my small setup.
I use with 54 watt solar panels to keep a pair of 6 volt batteries in my 5th wheel trailer charged. Also when camping away from electrical hookup which is almost always. Apparently can be damaged if left attached when another source of electricity is attached.
Two others have quit working under those circumstances.
The Classic SL-200 MPPT Charge Controller is a simplified SOLAR ONLY version of the Classic 200 with streamlined menus. The Classic SL-200 has a graphics panel and ground fault but no arc fault or Ethernet capabilities.
The Classic SL-200 has a maximum output current of 79 amps, an operating voltage of 200 volts and works with 12 to 72 volt battery systems. As with the whole Classic line, the Classic 200-SL has MidNite’s exclusive HyperVOC which extends VOC limits when needed.
With a streamlined menu, these SOLAR only MPPT charge controllers are easy to setup and a breeze to install!.
Misleading. Great packaging fast shipping and best pricing at time of purchase. Shows a picture of an additional item (whiz bang jr) but does not come with one. Might as well include photo of an inverter.
Happy with the purchase and will order from this company in the near future for my solar project.
The Victron Energy SmartSolar MPPT Charge Controller 150/70, 150/85 and 150/100 VE. Can gather energy from solar panels, and store it in batteries. SmartSolar maximises this energy-harvest, to achieve full charge in the shortest time.
SmartSolar maintains battery health, extending its life.
I love my SmartSolar 250/100. It has so many useful features, bluetooth to quickly see what the stats are, it will charge a battery from zero volts (especially useful for my NiFe batteries) I can easily change settings with bluetooth and I love that I can set it to charge up to 65 volts for my NiFe.
Another thing that has amazed me is that I’ve never seen as much power drawn from my panels before. I have 16×300-watt panels, so a total of 4800 watt rated, yet I’ve seen on a number of occasions wattages in excess of 4800 watts being drawn by the MPPT feature, just amazing! I also love that I can set up five panels in series and take advantage of the 250 volt input.
I haven’t done this yet, but when I get my new solar array I’ll definately be taking advantage to maximise our draw. I don’t have anything negative to say about the charge controller.
I purchased a couple 100W Renogy panels for our travel trailer as dry camping opens up a lot of sites for us and I dont like firing up the generator unless I have to. The panels are deployed on folding stands which is really the only way to get them in the sun in the wooded campgrounds we frequent.
I used them the first weekend with the PWM controller that came with the kit. It blinked nicely at me, but even with a voltmeter added to our control panel inside the camper there wasn’t really a way to see what was going on.
I started looking at adding monitors with shunts, but things start getting rather involved for my particular setup. At home in the off-season the camper is covered and plugged into shore power to keep the batteries up.
I realized a few things. First, Im paying for electricity to charge the batteries when I have two solar panels in a box. Second, the on-board inverter/charger is OK for maintaining batteries, but really lacks the ability to keep them at a full charge as they hover around 13.
4-13. 6 volts regardless of battery condition and with no temperature compensation. Third, to charge the batteries requires the battery kill switch to be on, meaning Im also powering gas and carbon monoxide detectors and who knows what other parasitic loads in the camper.
Not a monetary issue but things without power on them cant cause unforeseen issues. I had originally fallen prey to the argument that youre better off buying another panel vs. paying for an MPPT controller.
That works on paper but I realized that Ill set out 2 panels, but I will never set out 3 or 4. That meant the Victron SmartSolar 75/15 would work nicely and the cost was within my threshold of pain. The need for a separate monitor was also negated.
Installation was easy as I was just replacing the PWM controller. My setup is a couple of group 24 lead acid deep cycle batteries with around 160ah. Power is brought into the storage bay of my travel trailer with 4/0 wiring where it splits off to a 3000/6000 pure sine inverter.
The Victron is wired into the 4/0 cables which are only about 18 away with 10 gauge cabling. The Zamp plug that came with the camper was replaced with a 10 gauge wire unit, and the 20 of Renogy cable going to the panels is 10 gauge.
The storage bay isnt heated so its within a few degrees of the batteries which are on the tongue. After doing an update the unit automatically selected 12v and the default charge setting was for deep cycle gel batteries.
I was initially a little worried that there wasnt a specific setting for lead acid batteries but the parameters of this option are apparently fine from what I can gather. Equalization is off by default.
After installation I zipped the camper cover back up all I have to do now is walk by and log in to see whats going on, no need to unzip/unlock or interrupt my nap when were actually camping to check our state of charge.
The attached screenshots were for the first few days. Im only using one 100W panel as I felt this would be sufficient. The battery bank was at 90% charge the first day (see handy chart) and I was pleased to see that it got fully charged but concerned that my 100W panel was only putting out 35W in full sun.
A 100W panel is going to max out somewhere around 70W in the northern hemisphere on the best day in the summer and this was in January, the lowest amount of available solar energy (insolation) of the year.
The following days were even worse until I understood that Pmax isnt your panels peak wattage, its the peak that the controller will draw from the panel as it manipulates current and voltage to get what it wants.
Youre not going to see a Pmax that resembles the published output of your panels unless you have a big load on them (or drained batteries) and maybe not then. This is a laymans explanation, but if it keeps you from thinking you have a bad panel or connection its worth the keystrokes.
Of the following three January days the first was sunny, the next was cloudy and the next was rain. The Victron doesnt care, it still pulled plenty of voltage out of the panel and quickly went into float.
Its like a honey badger. Perhaps more interesting will be what happens when a live load is applied (such as when were actually camping and using power). Toggling the electric tongue jack gets an immediate response from the controller as it ramps up to offset what youre using, then it goes back to putting the battery back to the state of charge that it wants.
Comparisons between PWM and MPPT controllers are made in somewhat of a vacuum, you can spend hours reading them. In the real world of RV use the MPPT probably offers more advantages than published. On cloudy and rainy days MPPT wins, but though its hard to quantify it also wins when you have partial sun exposure due to your location.
I love wooded/private campsites. Most examples use a sunny day with no loads and the PWM can do what the MPPT does, it just takes longer. Lets say Im fully charged by noon and at.
The good 1. Very heavy solid device 2. The software interface is very well written and professional 3. Just works. Very liberal settings compared to other devices in its league The bad. 1. The input terminals are so close together that its very difficult to use any wire below 10 gauge without shorting them out and blowing sparks, even if your careful.
I spend an hour making my 8 gauge work, which is required on my setup and even though I finally did, they are so close together that I live in constant fear of a short. I had to take a piece of paper and slide it between all of them to make sure they were still not touching, thats how close they are 2.
Pricey (welcome to the Victron name) This product is a solid piece of equipment and would have gotten a full 5 stars from me if it had not been for those poorly designed terminal inputs. Whatever monkey that was in charge of that part of the design needs to be walked out.
ECO-WORTHY 20A 30A PWM LCD Display Solar Charge Controller can automatically manage the working of solar panel and battery in the solar system. Easy to set up and operate. Suitable for charging the DC lamp and phone, etc.
It’s convenient to open and close the load by the switch. Over-current and short-circuit protection, inverse connection protection, low voltage and overcharge protection. Connect the battery first and then connect the solar panel finally connect the load.
The reverse order applies when disassemble. Make sure the battery voltage is above 10. 8V.
The controller works very well and a very easy to read screen. The only downfall is the printed manual. The font is so small. Insurance companies wouldn’t go that small. There should be a PDF manual we can download.
i have a poroblem with my solar charge controller. I have been using it for 1 year now but it often shows the error code E07 and there is no information about this error code in the manual. Could you help me with this problem? Otherwise great product.
CAUTION: When something fails like a lcd screen on a controller, Eco does not replace it because they don’t stock parts. You’ll have to buy the whole device again and you then will have a useless device without a controller.
Victron MPPT 250V/60A charge controller is the most efficient solar charge controller to increase energy harvest for solar panels. Victron Smart Solar MPPT is Suitable for charging 12, 24, 48V batteries.
Ultra-fast MPPT and PowerPoint detection in case of partial shading. Automatic battery voltage recognition.
A solar charge controller is a device used to regulate the charging of batteries from solar panels. It ensures that the batteries are not overcharged and that the solar panels are not damaged by excessive current.
It also prevents the batteries from being discharged by the solar panels during periods of low sunlight.