Old Requests – HP – Laptop Battery Analyzer and Repair Forum
| Symptom | Likely Pinout Cause | |-----------------------------|--------------------------------------------| | Laptop powers only on AC | B+ pin corroded or broken | | Battery detected but 0% | SMBus data/clock stuck (BMS lock) | | “Plugged in, not charging” | TH pin open-circuit (no temp reading) | | Battery gets very hot | B+ sense line open → overcharging | | Random shutdown at 50% | Weak cell, but B+ voltage drop confuses EC |
The MU06 battery typically utilizes an . While official HP documentation rarely provides pinouts for consumer-level repair, community data and electrical testing define the standard 8-pin layout as follows: Pin 1: Ground (Negative / -) Pin 2: Ground (Negative / -) (Doubled for current handling) Pin 3: Unknown / NC (Often no connection)
(Exact register map depends on gauge IC; TI BQ family uses standard SBS/Smart Battery commands.)