Review on SUNYIMA 60A MPPT Solar Charge Controller - LCD Display, Dual USB, Multiple Load Control Modes - New Mppt Technology, Max Charging Current 60A by Nick Cleary

a bit disappointed. Currently using this on a 12v system and this controller will not work properly. It's mppt and the controller quickly adjusts the amps. That's the problem. If you use a panel it works fine. As soon as I plug the panel in parallel, the controller can't handle it. Amos actually drops to 0.2 and is not configurable. Since this mppt is actually a slightly higher series voltage, the controller needs to lower the voltage and raise the current. But to my surprise, that doesn't happen either. I think mine is broken. Shit because I was hoping this affordable controller would just work.