| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery to be used selectively, without providing an exclusive holder separately even when a kind of an exsisting battery or the like is different, and a holder circuit mounted with the battery, and a power source supplying circuit composed of a plurality of the holder circuits. SOLUTION: When a switch 8 is opened for changing the exsisting 1.5 V alkaline manganese batteries to respective holder circuits 4-7, their positive electrodes make contact with respective common electrode terminals 4P, 5P, 6P, 7P, and their respective negative electrodes make contact respectively with the first negative electrode terminals 4M1, 5M1, 6M1, 7M1. When the switch 8 is closed to charge 3 V lithium batteries (of which each negative electrode is arranged in a cylindrical circumferential face) to the respective holder circuits 4-6, their positive electrodes 2P make contact with the respective common positive electrode terminals 4P, 5P, 6P, 7P, and their respective negative electrodes 2M make contact with the second negative electrode terminals 4M2, 5M2, 6M2, 7M2. A voltage of 6 V can be supplied thereby to an apparatus in any case, as a result. |
