Systems And Methods For Matching End Of Life For Multiple Batteries And/Or Battery Backup Units
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United States of America Patent
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Issued Date -
Jan 7, 2016
app pub date -
Jun 30, 2015
filing date -
Jul 2, 2014
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Abstract
A system includes a first converter, a second converter, a first rechargeable battery configured to output a current to the first converter, a second rechargeable battery configured to output a current to the second converter, and a control circuit coupled to the converters. Each rechargeable battery has a capacity and a number of remaining discharge cycles. The control circuit is configured to determine a remaining lifetime energy throughput of the first rechargeable battery and the second rechargeable battery based on their respective capacity and number of remaining discharge cycles, and in response to the remaining lifetime energy throughput of the first rechargeable battery and the remaining lifetime energy throughput of the second rechargeable battery not being substantially equal, control the first converter to adjust the current from the first rechargeable battery to change a rate of decrease of the remaining lifetime energy throughput of the first rechargeable battery.
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