Patent ID: 6896995

Claim:
A system comprising: a battery cover; a battery assembly, a cover body attachable to the battery assembly comprising a plurality of batteries so that a plurality of first electrodes are covered, wherein the battery assembly comprises the first electrodes and at least one second electrode which are formed on a first face of the battery assembly; a hinge; and at least one opening/closing cover pivotably connected to the cover body through the hinge, wherein when the cover body is attached to the battery assembly, the opening/closing cover is movable relative to the cover body between an open position where the at least one second electrode is exposed with the opening/closing cover and a closed position where the at least one second electrode is covered with the opening/closing cover; wherein said battery assembly further comprises: a casing comprising a plurality of holes; wherein said plurality of first electrodes and said at least one second electrode are passed through the holes.