48 Volt 12 Ah Electric Bike Downtube Mounted Lithium Battery And Charger 48 Volt 12 Amp Hour Lithium Battery with Samsung Cells and BMS Protection and 2 Amp Charger Mounts To Water Bottle Bosses Allows for continuous control of 1200 watt system with Peak of over 2000 watts Lock and 2 Keys for Safety ~49 Amps max and 25 Amps continuous