MPPT Solar Charge Controller 20A Renogy RCC20MS 12V 24V Temp Monitor

Features Use of maximum power point tracking (MPPT) algorithm leads to a significant improvement of system energy utilization efficiency and a charging efficiency 30% higher than that of PWM method. A variety of tracking algorithms are combined to quickly locate the best operating point of the I-V curve. MPPT tracking efficiency is as high as 99.9% and circuit energy conversion efficiency as high as 98%; ultimate efficiency ensures no waste of energy. All-around electronic protection features: Battery reverse polarity protection, PV reverse polarity protection, PV short-circuit protection, charge over-current protection.  Built-in temperature monitoring module allows for charging through derating with  no need for a fan, which ensures stable operation in extreme temperature environments. Support standard modebus protocol to meet the communication needs in a variety of environments and occasions.  Support a variety of lead-acid batteries and lithium batteries, and users can specify the charging parameters to their needs.