The SMBus (System Management Bus) protocol is the intelligence behind smart batteries like the HP MU06. This I²C-based two-wire interface allows the laptop to continuously query the battery for vital information. A standard SMBus session between the laptop and the battery includes:
Sometimes used as a "detect" pin; often must be pulled to GND for the battery to output power. V+ (Positive) Main power output (typically 10.8V or 11.1V). Guide to Identifying Pinout Manually
The leftmost two pins are connected to the negative terminal of the battery pack. SMBus Clock (SCL)
| 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
Laptops draw significant current during peak performance. To prevent overheating individual pins, HP duplicates the power rails. Pins 1 and 2 share the load for the positive voltage output, while Pins 6 and 7 share the ground path. Inside the laptop, these matching pins join together on the motherboard trace. 2. The SMBus Communication Lines (Pins 3 and 4)
Here is the standard structural configuration for the 7-pin interface: Pin Number Signal Name Description GND System Ground / Negative Terminal (-) Pin 2 GND System Ground / Secondary Negative Terminal Pin 3 BI / System Present Battery Insertion Detection (Pull-down to GND) Pin 4 SCL SMBus Clock Line (I2C communication clock) Pin 5 SDA SMBus Data Line (I2C communication data) Pin 6 V+ (Plus) Positive Battery Terminal / Charge-Discharge (+) Pin 7 V+ (Plus) Secondary Positive Battery Terminal (+) Detailed Pin Functionality
. Ground is usually the set of pins nearest the "-" sign, while V+ is near the "+". Safety Features : The MU06 utilizes an SMBus protocol The SMBus (System Management Bus) protocol is the
| Pin Number | Signal Name | Description | |---|---|---| | 1 | GND | Battery Ground / Negative Terminal | | 2 | GND | Battery Ground / Negative Terminal | | 3 | TEMP | Battery Temperature Sensor Input | | 4 | BatID | Battery Identification Resistor | | 5 | CLK | SMBus Clock Line | | 6 | DATA | SMBus Data Line | | 7 | VCC | Battery Positive Terminal (+) | | 8 | VCC | Battery Positive Terminal (+) |
Laptop batteries operate at ~11.55V to 12.6V and can deliver high current. Do not short pins. Use a multimeter, not trial and error.
To ensure this guide meets your exact technical needs, please let me know: V+ (Positive) Main power output (typically 10
The MU06 battery connector typically features (depending on the specific revision), though the standard interface relies on five primary functional lines. When looking at the battery connector with the pins facing you, the configuration is generally as follows: Pin Number Description Pin 1 & 2 Ground (GND)
The HP MU06 battery incorporates an intelligent Battery Management System (BMS) on an internal printed circuit board. The BMS performs several critical functions:
The 8-pin connector on the MU06 battery can be susceptible to physical damage from repeated insertion and removal or from improper handling. Inspect the battery’s connector for bent or recessed pins, and inspect the laptop’s corresponding connector for debris or damage. Even a single deformed pin can interrupt critical signals such as SMBus clock or temperature sensing.
Are you trying to , charge it outside the laptop , or repurpose the internal cells ?