MPPT Solar Charge Controller 45A 12V 24V Auto for Batteries

what our customer say this product:

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1. drew Verified Buyer – 19 June 2024

   This thing didn’t stop over charging. I tried lowering the settings but it didn’t make a difference. Even when it said batteries were fully charged the volts would keep creeping up. Got up to 15.7v before I unplugged it. Unfortunately I installed it after the return window closed or I would have sent it back.
   

2. M&M Verified Buyer – 22 December 2024

   Been using this for a few weeks now and seems to be working well. My last one, a different brand, was throwing an error code and wouldn’t reset. Gave up on it and got this. My class B Sprinter has a small system for the house batteries. It consists of two 6v, 225ah agm batteries, wired on series, for an 12v system, with 300 watts of solar, and an 750w inverter. Install was quick and easy. It comes with a template for placing mounting screws. Replacing the old one just took a few minutes. The display is bright and easy to read. So far, so good.
   

3. geno Verified Buyer – 15 January 2025

   It does it job. As always, time will tell.
   I would buy it again.
   The price was really reasonable for the Mppt controller.
   UPDATE: after a month it stopped accepting charge from the panels…did the prerequisites, swapped controllers to confirm and yep, controller.
   Returned…tugapower.net was great.
   And went another direction.
   2 stars for the customer support from tugapower.net.
   

4. rhawkman Verified Buyer – 10 March 2025

   This does fine but pay attention to the voltage and amperage ratings. This is for 12 or 24v battery systems and it does fine for that at a good price. The only nit picking thing I have is that if you switch the display to watts it switches back to voltage reading after a few seconds. I wish it would toggle and stay. I just use it, I have done no technical testing for efficiency or any other parameters.
   

5. Jeconomica Verified Buyer – 16 March 2025

   Excelente producto
   

6. Erica Toney Verified Buyer – 10 April 2025

   This is my first time building a solar system. This solar charge controller is amazing. But the instructions are very hard to read. Once you figure out how to program it, It works wonders. I have love it so much I bought 2.

   

7. RichardENM Verified Buyer – 17 April 2025

   This PowMr MPPT Solar Charge Controller, 45Amp, 12V/24V is inexpensive for a true MPPT Solar Charge Controller. While the product description and even the box is confusing as to its specifications, it appears that the 45 Amp version can handle a Voc < 100V and 1040 Watts of solar panels. I connected this charge controller to an existing 24V system and it properly recognized my system voltage. There are a variety of built-in battery settings but I chose the User mode and set the values to match my other charge controllers. For testing purposes, I connected two 195 Watt, 18 Volt panels wired in series. According to the display on the unit, it generated about the charging current I expected. I like that it is passively cooled eliminating fan noise and possible fan failure. This unit falls short when it comes to monitoring. You can see the current PV Voltage and Watts and you can monitor the current battery Voltage and Charging Current but there is no way to track the total amount of power generated over the day. If you really want to monitor the power generated, you will need to add external monitoring devices. Additionally, setup requires the manual which shows the step that corresponds to each button press. The display does not always show enough information for you to know what value you are changing if you lose your place in the menu chain. The built-in battery settings were somewhat confusing because some are doubled when you have a 24 Volt system and others refer to enough lithium cells to be 24 Volts without doubling. I don’t know why the manufacturer chose to identify this unit as “PRO” since it provides only the minimum of settings and features. Nevertheless, for the price, it can be a good backup or supplemental charge controller.

   

8. Gnu Shoes Verified Buyer – 17 April 2025

   The PowMr POW-M45-PRO Solar Charge Controller has many features. It auto-detects the battery voltage when setting it up. The display is big, colorful, and monitors and reports the essential points of your solar charging system. There are many options to easily change parameters within your system components so it performs well. The sturdy, robust case is very nice looking and the instruction manual is easy to read. Being an MPPT controller gives the owner an advantage over PWM controllers as it is much more efficient in charging. There are many built-in protections including: Solar panel short-circuit, Solar panel over-current, Load over-current, Solar panel reverse polarity protection, Battery reverse polarity protection, and controller overheat protection. These safety features make setup and operation easy. You can even set user defined parameters for the controller for those systems that may be wired non-conventionally. This controller is a workhorse! On a scale of ONE to TEN… PowMr is an ELEVEN! Highly recommended!