The SMBus pins (Clock and Data) will typically show a logic-level voltage (often 3.3V ) when the battery is active or connected to a charger.
The HP MU06 is a smart lithium-ion battery (typically 3-cell, 41 Wh) used in modern HP consumer laptops. Unlike older batteries with simple positive/negative terminals, the MU06 uses a multi-pin interface for communication, balancing, and safety. Understanding its pinout is critical for: Hp Mu06 Notebook Battery Pinout Configuration
| 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). | The SMBus pins (Clock and Data) will typically
Negative terminals, often bridged for higher current capacity. SMBus Clock (SCL) Communication line for the battery management system (BMS). Pin 4 SMBus Data (SDA) Understanding its pinout is critical for: | Pin
While physical layouts can vary slightly by OEM manufacturer (Simplo, Dynapack, or Celxpert), the logical pinout follows a standard Smart Battery Data Specification (SBDS).
Typically a 3S2P layout (3 cells in series, 2 in parallel) using 18650 cells.