Deep Dive into the BQ40370 Battery Management IC: Architecture, Repair, and Programming
Once triggered, the chip sets a in its non-volatile memory (DataFlash). Even if you solder brand-new cells into the battery pack, the BQ40370 will refuse to charge or discharge, leaving the output voltage at 0V. Reprogramming, Unsealing, and Repairing BQ40370 Batteries bq40370