Electric vehicle battery packProduct Details:1. Basic CharacteristicsWeight700gDimension(T*W*H) 150*60*75mmWorking temperatureCharge Temperature0~45°CDischarge Temperature-20~65°CRetention of charge (store in one month 95%2. Technical DataRated Voltage24V Rated Capacity 4ahBattery Resistance 100 m©ChargeWay of ChargeCC/CVStandard Charge Current2AMax Charge Current  5AMax Charge Voltage 29.4VDischargeStandard Discharge Current5A  Max Discharge Currentcan be customizedDischarge Cut-off Voltage21VCycle Life500 times,capacity>60%3. Safety TestShort Circuit Safety TestNo fire, No explosionOvercharge Safety TestCrush Safety TestNeedling Safety TestExtrusion Safety Test130°C High Temperature Safety TestFeatures:1.Lighter weight, smaller size 2.Extremely safe, no explosion, no fire  under collision3.Maintenance-free and no acid or water for  maintenance in usage4.Large capability and long life for all  high power output applications5.Environmentally friendly non-toxic,  non-contaminating, no rare metal.