Hp | Mu06 Notebook Battery Pinout Configuration |link|

You cannot simply apply 11V to pins 1 and 7. Modern Li-ion batteries require a CC/CV (Constant Current/Constant Voltage) charging profile managed by an external controller or the laptop’s internal charging IC. Identifying Your MU06 Battery

If the Windows battery percentage is inaccurate, HP recommends a full calibration cycle: charging to 100%, then running a "Loop until error" memory test in the HP PC Hardware Diagnostics UEFI until the battery is fully depleted. for this specific battery type? Laptop battery pinout configurations - EEVblog Hp Mu06 Notebook Battery Pinout Configuration