Carries digital data (charge level, cycle count, temperature) to the laptop. System Present / Temp
If your specific MU06 variant differs (some use a compact 7-pin layout), you can verify the pins using these methods: Hp Mu06 Notebook Battery Pinout Configuration
| Pin # | Signal | Voltage / Function | Wire Color (Typical) | | :--- | :--- | :--- | :--- | | | B+ | Battery Positive (+11.4V to +12.6V) | Red or Black/Red stripe | | 2 | SMBC | System Management Bus (Clock) | White or Yellow | | 3 | SMBD | System Management Bus (Data) | Gray or Blue | | 4 | PRES | Presence Detect (Ground via 10kΩ resistor inside battery) | Orange or Brown | | 5 | B- | Battery Negative (Ground / 0V) | Black | Carries digital data (charge level
| 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
Would you like a schematic diagram or instructions on how to read the SMBus data from this battery using an Arduino?