Ampinvt Solar Charge Controller 12V 24V 36V 48V Auto, Max Input 150V Pv Regulator (Mppt 80A Controller)

Voltage reads 0.3volts off compared to all the rest of my equipment ... makes settings even more difficult to decide for my lithium batteries Wish it had a quieter fan for low setting.

Works like advertised very easy to install and use. Lots of functionality and affordable price.

Good controller. Was installed 2 years ago. Works very good

Update: so the screen flashes on and off sometimes I check it and it just off the screen had to be reset a few times it stopped letting me adjust the charge voltage fixed after factory reset which erased all my logs emailed the MFG they wanted me to take it apart which is normally fine but the thing is brand new so that's pretty weak they also wanted me to stand there and try to catch the screen malfunction if I did not they would not help at all 1 day past return time DON'T BUY support was non-existent Always the question with equipment like this is how long will it last I have always overrated equipment if you keep 70% of load it will last longer so far it works great perfect even I love it I have 2000watts of solar on a 24v system it does graphs and reports logs and so on its a great piece of equipment IF IT LASTS

its only been about a month or so it works fine, once you select the battery voltage (in my case 12v) it stays in its memory even when the battery is disconnected. I'm only using tow panels at the moment, Solar array option is quite limiting for a 12v system, it allows up to 1100w max, and the max input voltage for 12v system is 60v