By having an extra battery to-hand you remove the unnecessary stress of waiting for a full charge. It also provides you with peace of mind on those extra-long journeys. Designed for use in all of our post 2018 electric bike models, the 36 volt SDI eBike Battery has an in-built Smart Battery Management System to achieve the lowest self-discharge rate, helping to increase battery life from a single charge. The battery provides enough power to tackle steep slopes and can be easily removed and fitted into the frame. Features: Model: 374Wh Samsung Battery Voltage: 36 Amp Hours: 10.4 Avg. Distance: 30 to 50 miles , or 50 to 80 km. Charge time: 6-8 hours from flat