Combination of a support system, battery and driven device

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 can be selectively connected via a flexible line (7) to different electrical devices (10), which devices (10) are carried or moved by the user. Essential to this is that the battery (3), in addition to its electrical output connection (3e), has mechanical or magnetic connecting elements (3a, 3b, 3c) that correspond to electrical connections (5) and mechanical or magnetic connecting elements (4a, 4b, 4c) of the carrying system (1) and the electrical device (10), such that the battery (3) is selectively electrically and mechanically or magnetically connectable to the carrying system (1) or to the desired electrical device (10) and that the carrying system (1) has, directly or by means of the aforementioned flexible line (7), at least one additional electrical connection socket (17) at which the battery voltage is present when a battery (3) is arranged in the carrying system (1).