An electricity supply system of a driven element of a vehicle includes: a drive unit, where the drive unit drives a driven element to move; a controller, used to control the drive unit; a plurality of electricity storages, where at least one of the plurality of electricity storages supplies electricity to the drive unit, to drive the driven element to move; and the plurality of electricity storages includes a low-power electricity storage, a regular electricity storage, and a removable electricity storage;, and a pluggable charging unit, where the pluggable charging unit charges the removable electricity storage, the regular electricity storage, and the low-power electricity storage.
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