"rechargeable electric bike battery pack"

36V 4A Deep Cycle Fast Charging Recharge 18650 Lithium Battery For Medical Devices Quick Details: High Energy Density,High Discharge Rate,High Saftey Low Internal Resistance, No Memory Effect Long Cycle times more than 300 Times Replacement Battery ,Perfect Macth To Original Machine Flexible packaging, laminated type, lean liquid, good safety Great Factory Price with Best Quality and After-Selling Service OEM and ODM Are Acceptable BMS&PCM function: Over-charge protection,