| 摘要 |
PROBLEM TO BE SOLVED: To provide a miniaturized and lightweight Li-ion secondary battery pack with a simple structure, a charging apparatus for the pack, a charging method for the pack, and a charging system for the pack. SOLUTION: This Li-ion secondary battery pack 300 comprises a plus terminal 303a of a charging terminal, a minus terminal 303b of the charging terminal, a Li-ion secondary battery 302 having a plus pole connected with the plus side 303a and a minus pole connected with the minus side 303b, a diode 305 connected with the charging terminal 303a and the plus pole side of the Li-ion secondary battery 302, a resistance element 306 connected in parallel to the diode 305 for detecting the charging voltage of the Li-ion secondary battery 302, a plus side 308a of the output terminal connected with the plus pole of the Li-ion secondary battery 302, and a minus side 308b of the output terminal connected with the minus pole. |
