1. Safely charges amp maintains 12V lead acid batteries Input Voltage 100 120Vac a Input Frequency 47 63 Hz Output Voltage Fast Charge Bulk DC 14 4V Float DC 13 6V Output Current Fast Charge Bulk DC 4 000mA Battery Capacity 10 40Ahr Suggested Operation Temperature 32 F O C to 104 F 40 C m Storage Temperature 4 F to 104 F Input Voltage Input Frequency Output Voltage Output Current Battery Capacity Operation Temperature Storage Temperature 100 120Vac 47 63 Hz Fast Charge Bulk DC 14 4V Float DC 13 6V Fast Charge Bulk DC 2 000mA 5 20Ahr Suggested 32 F O C to 104 F 40 C 4 F to 104 F m 3 Stage Fast Charge stage Topping Charge stage amp Float stage m Short circuit protection Protects the charger from short circuit damage Over current protection Protects the charger from over current damage Over voltage protection Protects the battery being charged from damage m Reverse polarity protection Protects the charger and battery against incorrectly connected cables Multi color LED display indicates the charging status Engineered for safe automatic charging Maintains a full charge Built to last Compact light and powerful Specifications are subject to change without notice