100A MPPT Solar Charge Controller 12V 24V 36V 48V LCD Display Battery Intelligent Regulator Max 100V Input Dual USB for Lead-Acid/Lithium (100A)

Works great! Haven't had any problems with it. It seems to be very accurate. Great product for the price.

No soporta mas de 20 amp

Absolute garbage. The unit stopped working after 2 weeks. It's non serviceable since the fuses are soldered in to the motherboard.

I have two and they work just as described. Please read the information shipped with it say you don't over power the unit. It has specific settings for how many watts you can put into it for what voltage you're actually running it on

Second controller. Won't turn on at all, neither did the first one. No lights, no connection to solar or batteries am I missing something, would be nice to have a way to contact them for support. Update- got support, this is not a boost charger, exact voltage is required for usage. Does great at charging even bringing back dead batteries to life!

After three months of installation, they operate with no problems, even in the shade of Arizona's heat. I ordered them because they have the larger screw in ports for the 10 or 12 gauge wire, solid body, good heat escape fins on the back, and an easy-to-use button. And most of all, I run 3-- 20-amp 12-volt system, so I buy equipment that will handle at least twice the load I put on it, instead of like my neighbor, who underbuys and burns his crap out. Everything is excellent about them.

For the price. You cannot go wrong. I had rated this item lower. But after realizing this charger is compatible with 12 to 48 volt batteries, I had to change my rating. The more expensive controllers aren't as compatible. DIY perfect. Specially on a budget. It works for the ranges listed. I went from 12v to 48v system with this controller. No issues. Found out the hard way when I tried to do the same with a more expensive controller and they just don't have the compatibility. That controller is a paper weight now. This controller saved my day.

The size was bigger than expected from photos but it was a happy thing to find full sized screws and large holes to put in pretty big sized wires. Not sure of size. Screen is a little small but tells the tale. Easy information update with no confusion. My amateur wannabe engineer says put washers or just strips of metal where mounting holes are so no breakage in hard conditions. The case seems brittle plastic instead of forgiving but for price, especially if wattage and electronics are good inside, is a real treat. Happy to have bought it. Others reviewed it okay. One one is better.