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PRay
Reviewed in the United States on May 9, 2025
Great value for the money, excellent battery life, functions great easy to read
Barcox
Reviewed in the United States on March 19, 2025
I like it. Very quiet. Most power for 12v systems verses other charge controllers. My only complaint is the display, it does not stay one screen, instead it cycles through the different screen. So if you want to see the amps coming in, and going to the batteries, you have to wait for it to cycle to that screen. You can manually select it, but it only stay for a few seconds then start cycling again.
heidirose29
Reviewed in the United States on January 9, 2025
Have 1300w of solar panels it's controllering on ours rv.So far doing great job. No noise problem fan runs quiteCost is up there so hope it last. Bigger than last controller but easy to hang up. Like that you can use good size wire in and out of controller.
Nolan Stone
Reviewed in the United States on August 18, 2024
This is just an ok solar charge controller and would make a good choice for a beginner probably. It's not the greatest quality craftsmanship, but also not the worst I've seen. It's just ok.
David J. Xanatos
Reviewed in the United States on July 17, 2024
Charge controllers are serious business. They not only deliver high current from your solar panel array, they also are directly connected to your battery bank, which can be capable of delivering hundreds - or even thousands - of amps, if something decides to let go. For this reason I always disassemble these units to inspect the interior circuitry and wiring. Often with these off- or no-brand controllers there are problems - primarily with the wiring, and sadly, this one is no exception. It's not as bad as some I've reviewed, but the fatter, high-current leads have poor solder connections to where they connect to the board. Normally this would be a relatively easy issue to fix with a soldering iron, but in this case these connections are also potted/coated and make the process of re-flowing the solder and adding some much more difficult. Now, in the event that you don't know why this is a problem (I recognize that some of you folks may be new to solar stuff, or electronics in general, as I once was), bad solder joints also mean higher resistance to current flow. And high current with higher-than-should-be connections creates heat. And 30 to 50 Amps at 12 or 24 Volts or more can make a LOT of heat, very fast, and burn your board out, or worse, burn what you have your charge controller attached to (side note: You should be mounting your solar stuff - controllers, inverters, etc., to a large metal surface. Something that is NOT flammable, especially if you are going to try using cheaper/off-brand charge controllers... but I digress.)In short (no pun intended), these controllers are not for the novice. If you want to try using one of these, you should know the value of good solder joints, how to recognize them and the bad ones, and know how to repair them. These should also not be used in locations where they would not be observed should something fail and cause a potential fire hazard. Once you've run them hard, high charge current near the unit's rated max, and verified there is no excess heat or degradation of the internal board/components and connections, then you can employ them with a bit more confidence. But DO use fuses between the controller and the battery bank, rated for just a few Amps greater than the max current the controller can deliver to the batteries. This way if it ever fails and allows backflow from the batteries it will pop the fuse and prevent a more serious issue. Take every reasonable precaution, even with name-brand controllers.
Keith
Reviewed in Canada on November 7, 2024
I ordered the 'CM-50' 50A MPPT charge controller as a backup for my main 'EPEVER' controller in case of an emergency. My current controller is a 30A MMPT controller connected to 300W of solar panels which can be used to charge my 12V lifepo4 batteries in an emergency situation. I can use this 50A controller either as a direct replacement if needed or I could use it to increase my charging capacity with some additional panels.This is a very generic MPPT controller and it is identical in physical appearance and specifications to controllers being sold by other sellers. The description states that it has 2 USB ports but there are none on the 'CM-50' model I received.The front shell of the charge controller is made of plastic and it has a heavy metal back plate which acts as a heatsink that uses 2 fans to help cool the controller while in use.I found that the the display screen is quite bright and easy to read but there is 'no' external communication port and all setup is completed using the 4 buttons under the display. It is capable of being used for 12V, 24V, 36V and 48V solar/battery bank setups giving you a maximum capacity of 600W(12v) to 2400W(48V). It comes with several battery presets for lead acid, gel, sealed (AGM), Li or you can input your own user defined settings based on your battery manufacturer's recommendations.Overall, it seems like a decent no-frills controller without any bells or whistles. If you are on a budget or just starting out with solar it should get the job done.I personally plan on operating it well below it's maximum wattage and current capacity so I am not anticipating any problems with the controller.
Paul M.
Reviewed in Canada on November 6, 2024
The Cabin in the woods needed to have panels in series pushing 72 volts PV input which destroys most cheapie solar controllers.This controller is priced perfectly for an install and forget application (no monitoring).The terminal strip works well for more than the #10 awg I am using. Presently not using the Load terminals as loads are peaking past 20 amps (limit of this controller).For the new installation, we did set up a remote camera to watch the display for a while until we start to forget it's there. Very pleased, the price for this capacity with MPPT claims.
donald myles
Reviewed in the United States on October 30, 2024
This one I like because it will handle voltage up to 160 volts. I have 120 voltes going in to it works great
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