Features: 1.Industrial?grade master chip, 16 AD sampling accuracy, temperature, charging current, discharge current accurate real?time display. 2.Automatic focusing MPPT tracking charging, high charging efficiency, non?stop detection during charging, bidirectional focusing tracking. 3.Big LCD display, all adjustable parameter. 4.Three?stage charge management, effectively protect the battery. 5.Build?in short?circuit protection, open?circuit protection, reverse protection, over?load protection. Specification: Features: Industrial-grade master chip, 16 AD sampling accuracy, temperature, charging current, discharge current accurate real-time display. Automatic focusing MPPT tracking charging, high charging efficiency, non-stop detection during charging, bidirectional focusing tracking. Big LCD display, all adjustable parameter. Three-stage charge management, effectively protect the battery. Build-in short-circuit protection, open-circuit protection, reverse protection, over-load protection. Two-way moss tube anti-backflow circuit, high-power charging mode, ultra-low heating. Specification: Condition: 100% Brand New Material: ABS Color: As Picture Shown Options: 40A, 50A, 60A, 100A Battery Voltage: 12V 24V Auto Solar panel voltage: 12V, 18V solar panel, 24V, 36V solar panel Float charge: 13.7V(defaul,adjustable) Discharge stop: 10.7V(defaul,adjustable) Discharge reconnect: 12.6V(defaul,adjustable) Self-consume: