Fundamentally, the bq40370 is a fully integrated, single-chip fuel gauge and protector solution for Li-Ion and Li-Polymer battery packs. It acts as the "brain" of a smart battery, constantly monitoring its health and safety.
The BQ40370 is often found in Dell WDX0R batteries that experience a common failure mode: the battery works for a short time, then suddenly stops charging permanently, even if the cells are new. bq40370
Are you looking to a specific battery pack, or do you need help identifying a blown fuse on the board? the bq40370 is a fully integrated