We are thinking about using the BQ34Z100 on a 3 cell series pack. The cell is a LiFEPO4 polymer cell. I know LiFEPO4 cells are safer than Li-Ion cells but do you think an additional battery protection IC along side the BQ34Z100 is still necessary (safety or cell balancing)? If not, I would probably place a PTC in the pack for safety. If yes, can the BQ77910A be used with 3 cells? The datasheet talks about 4 to 10 cells.
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