Negative Ground, Max 170V PV input. PV input low pressure recovery point 12V:DC18V; 24V:DC34V; 48V:DC65V;. 7、Battery temperature sensor (BTS) automatically provides temperature compensation. Temperature rise protection 80℃ or more to reduce power output.
Working great and I am happy with the purchase of the off grid controller. Don't buy a cheap controller just get the right one the first time. Save a lot of headaches.