| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack capable of being mounted removably in a body apparatus and a power supply system, capable of charging the battery pack whether it is mounted in the body apparatus or removed, by equipping the battery pack with an external power input terminal. SOLUTION: A battery pack 3 is equipped with a secondary battery and an output terminal to supply power therefrom to an electronic apparatus in connection, wherein the battery and output terminal are accommodated in a case for pack, and also with an external power input terminal 4 for receiving the power fed from the commercial main through a charger 6, and thereby the pack 3 in the condition mounted in the body apparatus 2 can be supplied with power in such a way that the body apparatus 2 is skipped, which enables substitution with a battery pack 3 of any other battery system, and even for an electronic apparatus 2 to work with a primary battery, this pack 3 using secondary battery is serviceable with exchangeability with primary battery kept by configuring the battery pack itself 3 as accommodatable in the battery accommodation part 10.
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