| 摘要 |
PURPOSE: A battery pack and a charging system using the same is provided to increase charging efficiency by fixing a location of a battery pack by using a group of magnets when charging a battery pack. CONSTITUTION: A battery pack charging system comprises a battery pack and a charger. The battery pack comprises a first group of magnets, and a second group of magnets which has different polarity with the first group. The charger comprises a charger(200) comprising a third group of magnets which has same polarity with the second group, and a fourth group of magnets which has same polarity with the first group. In order to charge the battery pack, when coupling the battery pack to the charger, the first group of magnets and the third group of magnets should face each other, and the second group of magnets and the fourth group of magnets should face each other.
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