Review on Vehpro Solar Panel Charge Controller MPPT 40A-100A 12V/24V Auto Tracking with Dual USB Ports (100A) by Jake Pavelko

Not - repeat - DO NOT buy this unit. For no reason; even if your mother's life depends on it. First, the wires/cables don't stay in place. Even with the screws tightened, the wires/cables will fall out at the slightest tension. Second, the so-called user manual is not good. It tells you how to switch between different ads, but doesn't really explain what they mean. Apparently it was originally written in Chinese and translated by some Chinese who only got an B in English. My battery shows stable 12.8V when I connect the VOM meter directly, but no matter how hard I try I get no voltage. from the load terminals (bulbs) on the controller. It was the biggest waste of $32 I've ever spent on Revain. Whoever came up with this should be taken out and shot, revived and shot again.