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5.1.3 Battery pack
1 Charger
2 Key of battery lock
3 Battery lock
4 Upper holder
5 Battery pack
6 Lower holder
7 Charging socket
8 Cover of charging socket
9 On/off switch
10 Operating status and battery charge indicator
5.1.4 Drive unit
1 Drive unit
1 Speed sensor
2 Spoke magnet
1
6
7
8
5
2
4
10
9
3
1
1
2
5 – 17 mm