Hp Mu06 Notebook Battery Pinout Configuration -

The BMS (commonly Texas Instruments BQ40Z50 or similar) locks permanently if:
Suggested verification steps before connecting or repairing:

| Parameter | Min | Typ | Max | Unit | | :--- | :--- | :--- | :--- | :--- | | P+ to P- voltage (operating) | 9.0 | 11.55 | 12.6 | V | | P+ to P- voltage (protection trip) | 4.2 (per cell under) | – | 4.35 (per cell over) | V | | SMBus logic low (VIL) | – | – | 0.8 | V | | SMBus logic high (VIH) | 2.1 | 3.3 | 3.6 | V | | SMBus clock frequency | – | 100 | 400 | kHz | | PRES pin impedance (active) | – | 10 | 50 | Ω to GND | Hp Mu06 Notebook Battery Pinout Configuration