Charging device, system and method

Abstract

The present disclosure relates to a charging device for charging a battery back, comprising: a plurality of charging assemblies for charging a plurality of battery cells connected electrically in series in the battery back, wherein the plurality of charging assemblies are configured to charge a first set of the plurality of battery cells in a first time period and a second set of the plurality of battery cells in a second time period, any two of the plurality of battery cells that neighbor with each other are from different sets of the plurality of battery cells, and each of the plurality of charging assemblies comprises: an AC/DC converter for converting an inputted AC voltage to a first DC voltage; and a DC/DC converter for converting the first DC voltage to a second DC voltage for charging the battery cell. The present disclosure further relates to a charging system and method.

Dependencies are inferred from the claim text.