... LED display 3.Various protection 4.Temp. compensate 12V/24V Single output pwm Solar charge controller SR-L1.PWM2.Digital ... )Rated discharging current5A,10A ,15A ,20A ,30A ,40A(optional)Working Voltage12V ; 24V ; 12V/24V AutoNo load losses<5mA;Charging circuit voltage dropLess ... when the battery is over dischargedDirect charge voltage14.4V;×2/24V (duration time: 30 minutes)Float charge voltage13.6V;×2 ...