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US 8,427,107 B2Granted
System and method for extending the usable capacity of a battery pack via controlling battery current through different current paths
AssigneeA 123 Systems, Inc.
InventorPaul W. Firehammer
Life of this patent
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Abstract
Systems and methods for extending the useable capacity of a battery pack are disclosed. In one example, flyback transformers supply charge to lower capacity battery cells to extend battery output.
Claims20
A method for extending a useable capacity of a battery pack, comprising:
- discharging a battery cell via a first current path during a battery discharge cycle;
- and
- charging said battery cell via a second current path during said battery discharge cycle.
A method for extending a useable capacity of a battery pack, comprising:
- discharging a plurality of battery cells through a first current path during a battery discharge cycle;
- stopping said battery discharge cycle when a voltage of a battery cell of said plurality of battery cells is less than a threshold;
- charging said plurality of battery cells during a battery charging cycle, said plurality of batteries charged through said first current path;
- and
- charging at least one of said plurality of battery cells through a second current path during said battery charging cycle.
2 more elements
A system for extending a useable capacity of a battery pack, comprising:
- a plurality of battery cells;
- a first current path for charging and discharging at least one battery cell, said first current path including said at least one battery cell of said plurality of battery cells;
- a second current path selectively magnetically coupled to said at least one battery cell, said second current path providing charge to said at least one battery cell, said charge provided according to a state of said at least one battery cell.
Dependencies are inferred from the claim text.