The invention relates to a combination of a carrying system (1) and at least one rechargeable battery (3), wherein the carrying system (1) with its battery (3) can be worn by a user and the battery (3) is detachably arranged on the carrying system (1) and ...

The battery (1) has two connecting poles (5,6) and two terminal poles (15,16) that are arranged in preset manner such connecting poles of self battery are positioned corresponding to terminal poles of another battery. The connection between two batteries i...