The advantage of the PowerPacks No memory effect The PowerPack with lithium-ion cells can be briefly charged at any time regardless of its charging state. Interruptions of the charging process do not harm the battery. Complete discharge is not required.    No self-discharge Even after prolonged storage, such as during the winter, it is possible to use the rechargeable battery without recharging it. This means PowerPacks do not need to be recharged after a long break in use. For longer storage, a charge status of approx. 30 to 60% is recommended.    Long service life PowerPacks are designed for many tours, miles, and years of service. The intelligent, electronic Bosch battery management system (BMS) protects lithium-ion batteries from excessive temperatures, overcharging, and deep discharge. The BMS checks every cell, extending the life of the battery. This makes the time from initial use to the need to replace a PowerPack. Specifications PowerPack 400 Mounting type Frame mount Voltage 36 V Capacity 11.0 aH Energy content approx. 400 Wh Weight approx. 2.5kg Size of battery: 325 X 92 X 90 mm Dual battery compatible Yes Typical Range 30-60km   Charging Times   400 Wh 800 Wh 50% charge Compact Charger 2.5 hours 5 hours 50% charge Standard Charger 1.5 hours 3 hours 100% charge Compact Charger 6.5 hours 13 hours 100% charge Standard Charger 3.5 hours 7 hours