作者: Tohru Wanibuchi
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摘要: A charge circuit 6 supplies a charging voltage (Vc) or current to secondary battery 2, 24 26 used for driving an appliance 21 ; charged level setting device 5 , Sc 1 causes the predetermined level, and detection means 12 detects of 2 discharge section 21, discharges control operates when is higher than detected by lower Thus, it possible provide capable extending cycle life battery.