MPPT Solar Charge Controller PC1800F Series (60/80/100A) (MPPT) MPPT (Maximum Power Point Tracking)Solar Charge Controller offer an efficient, safe, multi-stage recharging process that prolongs battery life and assures peak performance from a solar array. Each Charge Controller allows customized battery recharging. Features: LCD display , easy to operate on LCD screen Multi stage charging (3-stage charging , parallel charging and equalized charging function) BTS – Battery remote temperature sensor terminal Enable to charge Li-thium, Gel , lead-acid battery With RS485 & USB communication port Protection: PV array short circuit, PV reverse polarity, Battery reverse polarity, Over charging, Output short circuit