Hp Mu06 Notebook Battery Pinout Configuration Now
The most reliable method is to itself. Often, the positive ( B+ / + ) and negative ( B- / - ) terminals are clearly marked on the white label or molded directly into the plastic connector housing. For the SMBus and other signal pins, the color-coding inside the battery pack is your best clue, though you should always verify with a multimeter before connecting anything.
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:
+-------------+ +-------------------+ +------------+ | Cell 1 (4.2V|----+ | Protection Circuit | | Connector | | Cell 2 (4.2V| | | & Gas Gauge (BQ40Z50| | Pin 6/7 B+ | | Cell 3 (4.2V|----+ | or similar) |----+ | Pin 1/2 GND| +-------------+ | | | | | | | - Overvoltage | | | Pin 3 SMBC | +-------------| - Undervoltage | +--| Pin 4 SMBD | | - Overcurrent | | Pin 5 TH | | - Short-circuit | +------------+ +-------------------+
The MU06 communicates with the HP laptop motherboard using the System Management Bus (SMBus) protocol, which is a specialized derivative of I2C. provides the clock synchronization signal. Pin 4 (SDA) transmits the actual data packets. Hp Mu06 Notebook Battery Pinout Configuration
The dual positive and dual negative pins are paired together internally on the battery’s Protection Circuit Module (PCM). Laptop components can pull several amperes of current under heavy loads. Doubling up the pins splits the current load, reducing contact resistance, minimizing heat generation, and preventing voltage drops. 2. SMBus Communication Lines (Pins 3 & 4) The and SDA (Serial Data) lines form an I2Ccap I squared cap C
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| Pin | Signal Name | Function | Typical Voltage/Logic | |-----|--------------------|--------------------------------------------------------------------------|-------------------------------------| | 1 | | Battery positive terminal (cell series output) | 10.8V – 12.6V (3S Li-ion) | | 2 | B+ (sense) | Redundant positive sense line (for voltage drop compensation) | Same as B+ | | 3 | SMBC | SMBus clock line (I²C-compatible) | 3.3V pull-up, bi-directional | | 4 | SMBD | SMBus data line | 3.3V pull-up, bi-directional | | 5 | TH / T | Temperature sensor (NTC thermistor, 10kΩ at 25°C) | ~0.5–2.5V depending on temp | | 6 | NC or ID | Not connected (or battery ID resistor for charger detection) | 4.7kΩ – 10kΩ to ground | | 7 | B- / GND | Battery ground | 0V | | 8 | B- / GND | Second ground (current return for high power) | 0V | | 9 | B- / GND | Third ground (safety/redundancy) | 0V | The most reliable method is to itself
The MU06 uses a (sometimes 7 populated) flat ribbon cable connector, often JST or Molex compatible. Common label on PCB: MU06 or HSTNN-LB7N .
Use a small resistor (10k Ohm is safe, though a direct jumper wire often works) to bridge Pin 5 to Pin 6 (Ground) . This simulates inserting the battery into a laptop.
It requires an activation signal on the System Presence or SMBus lines to wake up. The HP MU06 is a smart lithium-ion battery
Document version 1.0 – Compiled from publicly available EC logs, battery datasheets, and hardware teardowns of HP MU06 (HSTNN-IB9O) units.
All HP smart batteries, including the MU06, use the SMBus protocol. This means you can communicate with the battery's BMS using compatible hardware and software to read data like voltage, temperature, cycle count, and more. This is useful for diagnostics and advanced repair.
Are you trying to , or are you repurposing the battery cells for a DIY project?