Power bank with a single port for charge and discharge

Abstract

A power bank comprises a storage unit, a control printed circuit board defining an electrical connector having a plug interface exposed to the power bank for charging and discharging, a connecting module electrically connected between the storage unit and the control printed circuit board and an outer case having a first containment cavity and a second containment cavity to contain the storage unit and the control printed circuit board, respectively, wherein the connecting module includes a spacer plate separating the first containment cavity from the second containment cavity and a plurality of metal pieces, the spacer plate has a slit for allowing each of the metal pieces to pass through, and two opposite ends of each metal piece are electrically connected to the storage unit and the control printed circuit board, respectively.

Dependencies are inferred from the claim text.