100A MPPT Solar Charge Controller 12v/24v Current Auto Focus MPPT Tracking Charge with LCD Display Dual USB Solar Regulator Charge Controller Multiple Load Control Modes

Good solar-panel charge & load controller. Automatically senses if the solar-panels are for a 12V battery or for a 24V battery system (electrical knowledge is required).

I ordered this controller because I needed two of them to run my solar setup. I have just now got around to using the controller and lo and behold, the 2nd one doesn’t work. I’ve traced and retraced wires and checked leads, but there is no power.

They burned out. We used them to regulate our charge from solar panels

This is fine controller for just over $25 with the current coupon. I wouldn't even consider putting anything close to 100A of load on it but for small projects, it seems to be functional and easy to set up.The only thing keeping me from giving it 5-stars is the idea that someone might actually try putting it under the advertised load and that just doesn't seem safe.Overall happy with the "100A MPPT Solar Charge Controller 12v/24v Current Auto Focus MPPT Tracking Charge with LCD Display Dual USB Solar Regulator Charge Controller Multiple Load Control Modes".

This is only my second charge controller. I am kind of new to solar. My first charge controller was like this 100A, but only 30A. I replaced the 30A with this unit to upgrade my solar setup under my gazebo. I do movie nights out in the yard and spend a lot of time out there when I'm not working. I also just set up my second solar system in my vehicle, where I ended up placing the old 30A charge controller. The charge controllers have some similarities. They both have the regular solar panel, battery, and load terminals and USB ports. There are a couple of things I like about this unit compared to the older one. It is compact, it's smaller than the 30A controller. The best part is it has 2 x 2.5mm DC ports. The left DC port is an input where I can connect something like my portable solar table. This will be great when I go camping because I don't have to bring a big bulky solar panel. I can use the 2.5 mm DC output on my solar table that I already bring camping anyway. The right side 2.5 mm DC port is an output for a load. This is amazing because I have a ton of 2.5 mm gadgets and devices. I have lamps, lights, a boombox, a heated blanket, massage pad, etc... That all use a 2.5 mm plug. I also have a few 2.5 mm DC extension cables, so whatever I connect won't have to be right next to it. I won't even have to cut or splice any of my wires to use them with this charge controller. I can't speak on the MPPT part of this unit because I've never opened it up. What I can tell you is that it works great for my needs. My battery is always charged when I need power outside in the yard or in my vehicle. That's all I wanted. It has a nice big, clear, easy to read screen. The controls are easy to use and easy to change settings. It functions a lot like my 30A controller, so I already know how to change perimeters. I had to change some settings to use the 30A with my new LiFePO4 battery that I used in my vehicle. The settings on this new controller work the same way. I've loved electronics since I was a little kid. I've always had gadgets and gizmos. I not only use them but I repair them too. I'm still a newbie when it comes to this solar stuff, though, but I am very happy with my charge controllers. They do exactly what I need them to do, and that's keep my batteries topped off. If you are a newbie like me or just on a budget, I definitely recommend this charge controller. For the price, I don't care if it's a genuine MPPT or PWM controller.