30A MPPT Solar Charge Controller DC 12V 24V 36V 48V Auto Battery System, 150V PV Max Input 30 amp Solar Panel Regulator for Sealed Gel AGM Flooded Lithium Battery

Easy to install. Good documentation. The display keeps me well informed of the process of controlling the state of charge.

I gave it two stars primarily because it does not have an auxiliary on-off control at the main power panel. You have to go into settings and then scroll through and find the on-off switch for the axillary. it is also very noisy when the fan kicks in and it does not cool as much as I would have expected it to cool. It also quits working effectively at approximately 108 degrees Fahrenheit.

I bet it works but there’s a password locking me out of a important setting. Didn’t come with instructions or anything. All I can tell you about it is that it came in a box and I’m taking it as a loss

No workie. Returned after very dissatisfying response from the supplier. Zero quality control on mfg. of what could be a decent product. These things are shipped out very likely untested, which can be dangerous with higher voltages and large batteries.

I've been using this rectifier in 48V mode for three weeks without a single problem.

well top one came thought for me again i got a 30 amp that the screen had all ooooo on it with battery hooked they sent me another one we see how it is it was a warehouse item i my do un box and install video put on u tube this time