| Pin Number | Label / Name | Description | Function | | :--- | :--- | :--- | :--- | | | PACK+ | Positive Terminal | Main positive voltage output. Connects to the positive end of the cell array. | | 2 | PACK+ | Positive Terminal | Main positive voltage output (often bridged to Pin 1 for higher current handling). | | 3 | ID / TH | Thermistor / ID | Connects to an internal NTC thermistor. Used by the laptop to monitor battery temperature. Often serves a dual purpose as a security ID line. | | 4 | CLK | Clock (SCL) | I²C Serial Clock line. Used for SMBus communication between the battery BMS and the laptop EC (Embedded Controller). | | 5 | DATA | Data (SDA) | I²C Serial Data line. Transmits capacity, cycle count, and voltage data to the OS. | | 6 | SYS PRES | System Present | Often a logic signal indicating the battery is fully inserted. Usually pulled low or high depending on the circuit design. | | 7 | NC / ALM | No Connect / Alarm | Often unused (NC) or used for safety alerts. Can be a secondary temperature sensor in some revisions. | | 8 | PACK- | Negative Terminal | Main ground/negative output. Connects to the negative end of the cell array. | | 9 | PACK- | Negative Terminal | Main ground/negative output (bridged to Pin 8). |
Old Requests – HP – Laptop Battery Analyzer and Repair Forum Hp Mu06 Notebook Battery Pinout Configuration
The battery uses a wafer-type connector. Pins are numbered from left to right when looking at the battery label side with the connector facing you. | Pin Number | Label / Name |
System Present / ID (Sometimes needs to be pulled to ground to enable output) Pin 5: Clock (SCL) (SMBus/I2C communication) Pin 6: Data (SDA) (SMBus/I2C communication) Pin 7: Positive (V+ / +) (Output voltage) Pin 8: Positive (V+ / +) (Output voltage) | | 3 | ID / TH |