Power supply device

Abstract

A power supply device is provided, which includes a plurality of battery packs and a plurality of unidirectional conductive elements. The plurality of battery packs are connected in parallel with each other and disposed toward the same direction. The unidirectional conductive elements are connected in serial to the battery packs, respectively. A positive pin of each of the unidirectional conductive elements is connected in serial to a positive terminal of the corresponding battery pack, and a negative pin of each of the unidirectional conductive elements is connected in parallel to negative pins of other unidirectional conductive elements. Therefore, the present disclosure is capable of preventing the battery packs having relatively lower voltages from being charged by the battery packs having relatively higher voltages, thereby prolonging lifetimes of batteries, and avoid from affecting power to be supplied to a power receiving circuit from the battery packs.

Dependencies are inferred from the claim text.