| 摘要 |
There are provided a cordless power tool powered by a power supply unit that does not require a charging device and a charging power supply unit and an accommodation case thereof. In a cordless power tool, a front-end tool 24 provided in a housing 20a is driven by an electric motor 21 which uses a battery attached within the housing 20a and 20b as a motive power supply unit. The battery includes a fuel cell battery body 31 and a fuel tank 33 or a fuel cartridge 32 that stores fuel and supplies the fuel to the fuel cell battery body 31. The fuel tank 33 or the fuel cartridge 32 is detachably attached within the housing 20b in conjunction with or separate from the fuel cell battery body 31.
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