BATTERY CHARGE-DISCHARGE BALANCING CIRCUIT ASSEMBLY
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United States of America Patent
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Sep 30, 2015
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Sep 30, 2015
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Abstract
A battery charge-discharge balancing circuit assembly used in a battery pack consisting of multiple secondary battery cells is disclosed to include a switch device installed in each of the positive and negative terminals of each secondary battery cell and a balancing resistor connected with all the secondary battery cells in a parallel manner and the balancing resistor device having two opposite ends thereof connected the switch devices in series. All the secondary battery cells or multiple secondary battery cells of the battery pack can share one balancing resistor. By means of discharging the secondary battery cells in rotation, every secondary battery cell gets balanced to achieve efficient charging, eliminating the problem of overheat of the prior art technique.
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