Rechargeable battery charging method
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United States of America Patent
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Aug 15, 1995
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N/A
app pub date -
Aug 26, 1993
filing date -
Aug 27, 1992
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Abstract
A hysteresis battery charging method repeats peak and trough voltage and current waveforms taking the battery to a temporary over-voltage state during peak charging. This method achieves rapid recharge while avoiding battery performance degradation. Constant current charging or quasi-constant current charging is performed during peak charging. During troughs, charging is either suspended or reduced from that during peak charging. After battery capacity has reached a set value by hysteresis charging, an optimum voltage is maintained by constant voltage charging.
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