3S 12V MPPT Solar Panel Controller Battery Lithium Pack Charging Module

Features: *High-end technology MPPT solar maximum power tracking charge management chip with trickle constant current constant voltage charging management. *The use of imported high-frequency low-conduction resistance double MOS tube high current diode high efficiency flat high-power inductors alloy current detection resistor. *The large aluminum cooling fin at the bottom ensure it keep stability working at the high current. *High-speed and efficient way of charging heat small fast. *Dual status indicator light no battery when the red light flashes green light is always on charging red light full of self-stop while the green light. Specifications: Input voltage: 18V nominal solar panels (no load about 21V solar panels) Output voltage: nominal 12V (10.8V 11.1V) filled with voltage 12.6V lithium battery 3 string lithium battery charge management Output current: maximum constant current 3A (Charge current > 2A please add heat dissipation) Wiring method: Welding plate IN + : input positive IN - : input negative (SOLAR) BAT+: battery positive BA-: battery negative Package Contents: 1 x MPPT Solar Panel Controller Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.