The Big Daddy of Bosch's frame mount battery offerings. PowerPack Frame batteries sit on the outside of the eBike frame, on the seat tube or down tube. They have a handle, so you can remove and carry them easily and conveniently. All PowerPacks Frame in the smart system have the same mount. Therefore, you can easily insert a different battery, if the geometry of your eBike allows. Smaller batteries reduce the weight, larger ones increase your range. Bosch's e-bike battery electrical system is certified to UL 2849 safety standards. PowerPack 800 Frame System Bosch Smart System Mounting type Frame Voltage 36 V Capacity 22.2 Ah Energy Content Approx. 800 Wh Weight 8.6 Lbs Size 13.6 x 3.7 x 3.9 in Dual Battery Smart System Compatible Yes 4A Charger Charging Time 50% charge: approx. 2.6 hours100% charge: approx. 6.9 hours 2A Charger Charging Time 50% charge: approx. 5.7 hours100% charge: approx. 12.4 hours