HP, like other major manufacturers, uses the protocol for its smart batteries. SMBus is a two-wire communication standard (clock and data) that allows the battery and laptop to exchange critical information in real-time. This protocol is also used to "lock" a battery to a specific laptop model, preventing the use of third-party or incompatible batteries. Because of this, HP batteries have a known, standardized pinout across many models.
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.
The HP MU06 notebook battery pinout configuration typically consists of multiple pins, which vary depending on the specific battery model and laptop design. However, based on common configurations, here's a general overview of the HP MU06 notebook battery pinout: Hp Mu06 Notebook Battery Pinout Configuration
If you want to read the health data of an old MU06 battery using an Arduino, Raspberry Pi, or a specialized EV2400 chip tester, use the following wiring scheme: Connect to your microcontroller's Ground pin. Connect Pin 3 (SMBD) to your microcontroller's I2C SDA pin. Connect Pin 4 (SMBC) to your microcontroller's I2C SCL pin.
Use a multimeter to find the outer pins. The pair showing roughly 10.8V - 11.1V is the Positive (+), while the opposite end with zero resistance to the case is Ground (-). HP, like other major manufacturers, uses the protocol
10.8V to 11.1V (depending on the specific cell chemistry used) Charging Voltage: 12.6V maximum
Go to product viewer dialog for this item. is a standard 6-cell lithium-ion battery used in numerous Pavilion and Compaq series laptops. While pinout documentation is not officially published by HP, technical analysis of the battery's 9-pin connector reveals a configuration based on the protocol. MU06 Connector Pinout (9-Pin Layout) Because of this, HP batteries have a known,
The HP MU06 is one of the most widely used laptop battery models in HP's history. It powers massive lineups of legacy laptops, including the HP Pavilion, Compaq Presario, and HP Envy series. For electronics hobbyists, repair technicians, and DIYers, understanding the pinout configuration of this battery is essential for testing, cell replacement, or repurposing the lithium-ion pack for external projects.
: In many HP models (like the Envy or Pavilion series), Pin 1 is often the leftmost pin when viewed from above with the battery seated in the chassis HP Support Community Identification Marks
The rightmost two pins provide the main voltage output (typically 10.8V or 11.1V). Technical Identification Tips Visual Indicators : Check the battery casing for molded "+" and "-" signs
In many MU06 models, the connector uses 9 physical slots. For identification, hold the battery with the connector facing you and the label side up. The pins are generally numbered from . Pin Number Description 1 - 2 Ground (-) Negative terminal/system ground. 3 SMBus Data (SDA) Communication line for battery data. 4 SMBus Clock (SCL) Timing line for data transfer. 5 Temperature (T) Thermistor pin to monitor battery heat. 6 System Present Often needs to be pulled to ground to enable the battery. 7 NC / Reserved Not connected or reserved for internal testing. 8 - 9 Positive (+) Main power output (typically 10.8V to 11.1V). Identification & Testing Tips