| 摘要 |
There is provided a charging apparatus, which uses a charging control timer having a relatively simple constitution, capable of preventing an overcharge of a secondary battery while detecting the overcharge of the secondary battery even if a charge current value is relatively small. The charging apparatus that discontinues the charging in a preset expiration time period of a timer has a variable controller for controlling the preset expiration time period of a timer in response to an interrupted time if the charging operation that is interrupted before reaching the preset expiration time of a timer is started again.
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