Features: Imported high frequency low conduction internal resistance double MOS tube is adopted. 10A high current double diode. Adopt advanced MPPT solar maximum power tracking technology. Ultra-high efficiency MPPT supports solar high current charging within 8-28V and 100W. The output voltage can be adjusted arbitrarily, and CC-CW automatic control. Complete charging management of battery. 300kHz PWM switching frequency. Constant current charging current is set by external resistance (preset 5000mA/2000mA). Trickle charge the deep discharge battery. Dual indication of charging state and charging end state. Low power soft start function.