Specifications BrandVarstromModelSilverfishVoltage36VCapacity18 2AhEnergy655 2WhCell Type18650 2600mAhCell Configuration10S7P 70PCSBMS protection30APeak current90ACharger42V 4ABattery BaseBullet ConnectorCharging Port TypeXLRLED Indicator Board3 Green LightCharging Temperature0 45℃Discharging Temperature 15 65℃Charging MethodCC CV Constant Current Constant Voltage Charging Charging Cut off Voltage42VUsage Cut off Voltage28VBattery Case Dimensions428 75 110mmCycle Life1000 TimesWeight4 3kg Features 1 Ultra Compact DesignEngineered to disappear on your bike frame sleek low profile and zero bulk 2 True PortabilityThe removable shape slips into backpacks or under desks Perfect for commuters hopping between trains buses and bike lanes 3 Go Farther Ride FreerHigh capacity lithium power for extended city exploration Say goodbye to range anxiety on work commutes or weekend escapes 4 Charge with EasePlug in anywhere at home the office or cafes Our rapid charger gets you back riding faster Package Includes 1 x 36V 18 2AH Lithium ion Battery1 x Charger