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MPPT is interpreted as Maximum Power Point Tracking. The tracking efficiency of this controller can reach up to 100%, while the common PWM controller is only 60%~80%. MPPT Charge Controller generates at least 20%-35% more power than traditional PWM charger controllers.
Please check the solar cable again.
Please check the battery positive and negative terminals to MPPT are right connected. Please check the solar panel's positive and negative terminals to MPPT are right connected.
B. Chad Gray
2025-09-02 16:31:34
I bought this controller after purchasing a previous solar controller that did not work at all. Simple directions: Connect to your battery first, then your solar panel. The controller lights show the charge level of the battery, and the LCD display show the voltage and amps going into the battery.I use this controller to provide lighting in a shop building that is off grid. I have one 100 watt solar panel, and a deep cycle 12 volt car battery. When I first installed the system, the battery was at 50%. I connected five 60 watt 12volt bulbs on a switch, and I have one 100 watt bulb that stays on 24 hours. When I checked on the system a few days later, everything was functioning properly, and the battery was at 100%. This system has been installed and working properly for about a month now. We worked in the shop all day yesterday, and the battery never came off 100%. For what I'm using it for, it's been a perfect application, and performing exactly as I need it to.
James L.
2025-08-27 13:19:35
This has been maintaining my cars battery with a rooftop solar panel for almost 8 months now with no issues. Car starts right up every time even after sitting for months at a time. Bluetooth works well too, great for monitoring data.
Betsy L Moody
2025-08-15 15:11:08
I was disappointed that the MPPT (Maximum Power Point Tracking) function on these Bateria regulators does not include the ability to charge when panel voltage is below battery voltage. A regulator I purchased 7 years ago had MPPT that could charge even with panel voltage below battery voltage, so I replaced the simpler "PWM regulator" that came with the 175W solar panel I installed on my boat. This MPPT unit was 4x the price of the Bateria units, but is still working like a charm. The ability to charge with panel voltage below battery voltage makes a noticeable increase in the average energy delivered by a solar panel - especially in chronically poor sunlight situations.When sunlight conditions are poor (meaning EVERY morning and late afternoon when the sun gets low, and ALL DAY on cloudy days) the panel output voltage is lower than battery voltage, and simple PWM regulators (and even MPPT regulators such as this Bateria) are unable to provide ANY charging. (In fact, all regulators slowly discharge the battery under those conditions.) When needing to keep batteries of seldom-used vehicles charged in Northern latitude Winters, enough sunlight to charge may not occur for weeks at a time - and even then at most for 6 hours/day.I purchased 4 Bateria 10A units and tested them in my electronics lab. All 4 responded when voltage was applied, but none would charge unless input (panel) voltage was above output (battery) voltage.I then purchased 4 more of the MPPT units installed on my boat and put them in the same test setup. Output to charge the 12 battery was produced even with input (panel) voltage as low as 5 volts.I plan to use one of these MPPT units to help maintain a Recreational Vehicle (RV) battery during the Winter when short drives are not sufficient to restore a healthy battery charge. All will be used - one per panel - on higher-power panels (all slightly different) during my travels so that each panel will simultaneously produce its maximum power into a common battery regardless of differences in shading (common in campgrounds) or sun angle.
jk
2025-07-05 15:59:06
I'm very happy to find such a small and low priced MPPT charge controller. I wanted a small controller to use with my QRP Ham set up and this perfectly fits the bill. The only down side is that this unit is noisy. Easily fixed though. Just take a 240-43 mix toroid and wrap the power cord between the controller and the radio with as many turns as you can get on the toroid and the noise goes away. Now it works perfectly and I have not spent $140.00 on a Genasun controller to get an efficient and quiet, small charge controller. Easy and cheap fix that now does not cause any noise in my transceiver. If you are not using this controller for something like a ham radio. Maybe just to charge something like a battery or cell phone, the noise it generates should not cause you any problems as is. Most all charge controllers generate some noise unless you get one like the Genasun, which is very expensive. Ham operators, try one, you'll really like it.
George
2025-05-04 17:38:42
Stay away! This controller has many issues, the most major one is overheating. It is rated at 150 watts but at 120 watts continuous use (or less) it begins to overheat about 10 minutes of use and burns out my input fuse or it starts to lower the output current. The output current continues to drop and eventually goes down to 6-7 amps when it was outputting 10 amps, with the total power dropping below 100 watts. Do yourselves a favor and go buy a more decent and better built charge controller. In addition, the mobile app is a disaster to day the least, difficult to use, you have to go search for the Bluetooth controller every time. It doesn't save the controller last used an reconnect when you close and re-open the app. The instructions that came with the device are minimal. Finally, the controller input voltage needs to be 15 volts minimum and the input voltage must be at least 3 volts more than whatever the battery voltage is otherwise it doesn't charge. I didn't know this when I was buying this, then I found it in some fine print in the manual but it wasn't even clearly explained. To make matters worse, MPPT technology is supposed to boost the voltage of the solar to charge the battery if needed, for example when the input voltage is lower than the battery voltage. This controller does not do this so beware. Terrible product overall, it's getting returned once I find a better product. Wasted so much time with this when I could have spent a little more and got something that works.
Paul C.
2025-05-02 09:27:48
My intended usage is for portable power for ham radio off grid operations, field day, emergencies. This charge controller is highly rated on all the reviews I've seen. I've got it mated up with the JJN 100w folding solar panel. I added Anderson Powerpoles to the Bateria controller's two pigtails to mate up with my ham gear and the Powerpole adapter that comes with the solar panel. Excellent setup!
Rsolis
2025-03-30 10:53:48
aun no le he probado lo suficiente , pero se ve bien en las pruebas que realicé, con una estación de poder pequeña que fabriqué , (una baterÃa LiFePo4 de 20Ah. con un panel solar de 100w.)
Donat Labelle
2025-02-06 16:48:34
Only worked for about an hour then died. No reverse connections no wire problem it just quit on me.
Rodger Hamel
2024-12-22 18:27:01
Not completing full charge
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