3 stages charging modes: •Constant current (2.0A)•Constant voltage (14.3 to 14.7V)•Floating voltage (13.5 to 13.8V)•LED indicate charging status:•Red: in charging•Green: fully charged•Safety protections:•Short-circuit protection•Battery polarity error protection•Over-voltage protection•Lead-acid battery pack•Suitable for 12V•Input power supply: 100 to 240V AC, 50 to 60Hz/1.0A•Output voltage: 12V DC•Charging current: 2,000A•Dimension: 74.0 x 28.0 x 42.0mm•No drain current from the battery when AC is off•Certificate: UL1310 CE FCC part15,SAA&C-TICK listing2 YEAR WARRANTY A Must for Motorcycle, LAwn, ATV, PWC, Auto and More