| 摘要 |
<p>A rechargeable power pack (31) is shaped and dimensioned to be inserted in the battery compartment of an electrical device. The top (32) of the power pack is exactly symmetrical with the battery compartment cover which it replaces. The power pack has a peripheral wall (36) spaced apart from the sides of the battery compartment mounting the battery contact terminals. Flexible prongs (45, 46) project from the peripheral walls (36) to provide a wiping contact with either a spiral spring negative terminal or a stationary positive terminal. A top mounted connector (52) allows recharging of the power pack either during or after operation of the electrical device. An alternate embodiment combines a set of NiCad rechargeable batteries and a cover assembly including an additonal battery station to compensate for lower rated voltage of NiCad power cells, a recharging connector and associated current limiting circuit, and a flexible conductor with terminals specially adapted for insertion between the battery poles and the corresponding terminals. <IMAGE></p> |
