| 摘要 |
PURPOSE: A battery device is provided to continuously use a rechargeable power tool for long periods of time by a plurality of modularized batteries. CONSTITUTION: A battery device(100) comprises an adapter, a modularized battery unit(10), and a cable. The adapter is combined and connected with a rechargeable power tool. The battery unit supplies power to the power tool by being connected with an adaptor and is modularized by being combined with a plurality of batteries. The cable electrically connects the battery unit with the adapter.
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