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Hp Mu06 Notebook Battery Pinout Configuration Link Info

The HP MU06 is a standard notebook battery often found in HP Pavilion and Envy series laptops. While HP does not officially publish pinout diagrams, technician data and community forums like Laptop Battery Analyzer Forum provide standard configurations for this 9-pin connector. HP MU06 Standard Pinout Configuration

The connector typically uses a 9-pin layout. The standard pinout for this series is: Pin Number Description Ground (GND)

The leftmost pins (when looking at the connector) are typically negative. SMBus Data/Clock Communication lines for the SMBus interface. identifies these as routed through ESD protection. Temperature (T)

Often used for a thermistor (10k NTC) to monitor battery heat. System Present

Sometimes used to signal the laptop that the battery is physically docked. Positive (V+) The rightmost pins providing the main 10.8V or 11.1V power. Safety & Testing Tips

If you are testing the battery manually or for a DIY project, follow these guidelines: Verification:

Always use a multimeter to verify the positive and negative terminals before connecting to a circuit. Positive pins will show a voltage against ground even if the laptop is off. Calibration:

If the battery is detected but showing incorrect charge levels, you can use the HP PC Hardware Diagnostics UEFI to run a battery check and calibration. Analyzer Support: For advanced repair, tools like the Laptop Battery Analyzer (NLBA) are used to reset the internal chip or cycle cells. Visual Guide:

You can find official user guides and serial number locations for the MU06 on the HP Support Portal Are you trying to rebuild the battery pack troubleshoot a charging issue

HP MU06 notebook battery is a widely used 6-cell Lithium-Ion battery compatible with various HP Pavilion, G-series, and Envy laptops. Understanding its pinout configuration is essential for troubleshooting charging issues or performing advanced repairs like chip resets. Amazon.com HP MU06 Pinout Configuration

Based on technical documentation and community verification for HP "classic" 6-cell batteries like the MU06, the connector typically features 7 to 9 pins NLBA1 Laptop Battery Analyzer and Repair Tool

The standard pin configuration for the MU06 (and similar models like the DV2000 series) is often as follows: Pin Number Description Negative terminal/Ground SMBus Clock line for communication SMBus Data line for battery management Positive terminal/Power

Note: In some 8-pin or 9-pin variations of this connector, the Positive (+) and Ground (-) terminals may occupy multiple adjacent pins (e.g., pins 1-2 for Ground and pins 8-9 for Positive) to handle higher current. Technical Specifications

HP Notebook PCs - The battery doesn't charge or power the laptop

The Go to product viewer dialog for this item. notebook battery (part number WD548AA) typically uses a 6-pin or 9-pin interface, though the physical connector on the battery itself often exposes fewer active pins to the user for testing. Based on common configurations for this battery family (like the DV2000/DV6 series), the pinout is generally as follows: HP MU06 Pinout Configuration

For the standard 6-pin interface used in compatible HP Pavillion laptops, the pins are often defined as: Pin 1: Negative ( −negative Pin 2: Unknown/Blank (X)

Pin 3: System Present (T / Jumper to ground to enable output) Pin 4: Clock (C / SMBus Clock) Pin 5: Data (D / SMBus Data) Pin 6: Positive ( / Battery Voltage) Key Technical Details

Safety Trigger: Pin 3 (System Present) must often be pulled down to Ground (Pin 1) to "wake up" the battery and allow voltage to be measured at Pin 6.

Communication: The battery uses the SMBus protocol (I2C-based) for communication with the laptop's power management system.

Testing: If using a multimeter, you can identify the Ground and Positive pins by looking for the highest voltage differential (typically 10.8V to 11.1V nominal). Official Resources & Guides

For formal setup and troubleshooting, refer to the HP MU06 User Guide on the HP Support Site.

If you are attempting to repair or reset the battery chip, advanced tools like the EV2300 and specialized software are often required to interface with the internal controller.

HP MU06 Notebook Battery Pinout Configuration: A Comprehensive Guide

The HP MU06 notebook battery is a rechargeable lithium-ion battery designed for use in HP laptops. If you're looking to replace or upgrade your HP laptop's battery, understanding the pinout configuration is crucial to ensure safe and proper functioning. In this article, we'll provide an in-depth look at the HP MU06 notebook battery pinout configuration, its link, and other essential information.

Introduction

The HP MU06 battery is a specific type of battery designed for HP laptops. It's a 6-cell battery with a voltage rating of 11.1V and a capacity of 63Wh. The battery is made up of high-quality lithium-ion cells, which provide a long battery life and reliable performance.

Pinout Configuration

The pinout configuration of the HP MU06 notebook battery refers to the arrangement of pins on the battery connector. The connector is used to link the battery to the laptop's motherboard. The HP MU06 battery has a 7-pin connector, which is a common configuration for many HP laptops.

Here's a breakdown of the HP MU06 battery pinout configuration:

Link and Connection

The link between the HP MU06 battery and the laptop's motherboard is established through the 7-pin connector. The connector is usually located on the battery pack and mates with a corresponding connector on the motherboard.

The connection is as follows:

Importance of Correct Pinout Configuration

Using a battery with an incorrect pinout configuration can lead to serious safety issues, including:

How to Identify the Correct Pinout Configuration

To ensure you're using the correct pinout configuration, you can:

Replacement and Upgrade Options

If you're looking to replace or upgrade your HP MU06 notebook battery, make sure to purchase a battery with the correct pinout configuration. You can: hp mu06 notebook battery pinout configuration link

Conclusion

The HP MU06 notebook battery pinout configuration is a critical aspect of ensuring safe and proper functioning of the battery and laptop. Understanding the pinout configuration and link between the battery and motherboard is essential for replacement, upgrade, or repair purposes. By following the guidelines outlined in this article, you can ensure a safe and successful battery replacement or upgrade experience.

Additional Resources

For more information on the HP MU06 notebook battery pinout configuration, you can:

Specifications

Disclaimer

The information provided in this article is for general purposes only and may not be applicable to your specific situation. Always consult the manufacturer's documentation and follow proper safety procedures when working with batteries and electronic devices.

The HP MU06 notebook battery uses a standard multi-pin connector common to many HP Pavilion and Compaq Presario series laptops. Understanding its pinout is essential for troubleshooting charging issues or testing cell health externally. Pinout Configuration

The MU06 battery typically features a connector with 7 to 9 pins, depending on the specific sub-model (e.g., HSTNN-LB0W or 593553-001). For the most common MU06 variants, the configuration is generally as follows:

Positive (+): Usually the first and/or second pins on one end of the connector. These pins provide the main voltage (typically 10.8V to 11.1V) to the motherboard.

SMBus Data (D): Typically located in the middle section. This pin is used by the operating system to query the battery management system (BMS) for charge levels and health status.

SMBus Clock (C): Paired with the Data pin, this provides the timing signal for the communication interface.

System Present / Control (T/P): Often Pin 4 or 6, this pin must sometimes be pulled to ground (0V) for the battery to enable its output.

Negative (–/GND): Usually the last one or two pins on the opposite end from the positive terminal. Technical Specifications

The MU06 is a Lithium-ion battery designed for high compatibility across several HP lines: Laptop battery pinout configurations - EEVblog

HP MU06 notebook battery typically uses an 8-pin connector configuration. Based on technical documentation and community data, the pinout for this 8-pin series is generally defined as follows: Pinout Configuration Negative (-) Positive (+) Note: For the

, pins 2, 3, 4, and 7 are often system-specific or blank depending on the exact sub-model (e.g., G42, G62, or CQ42 series). Verification and Support Resources

For official technical guides and model-specific variations, you can refer to these resources: HP Support Community

: Often contains user-verified diagrams for specific laptop models using the MU06 battery. View the HP Support Forum for orientation discussions. HP Official Setup Guides HP MU06 Setup and User Guide provides basic installation and safety information. Technical Pinout Databases

: Comprehensive tables for various notebook batteries can be found on platforms like , which lists the MU06/CQ42 series pin definitions. Safety Warning

When measuring or testing battery pins, exercise extreme caution. Incorrectly jumping pins can damage the Battery Management System (BMS)

or cause a short circuit. If the battery is over-discharged, it may show 0V across power pins until a "system present" signal is received by the controller. how to safely test

these pins using a multimeter to confirm this layout for your specific unit? HP MU06 Long Life Notebook Battery - Setup and User Guides

notebook battery (standard part number 593553-001) typically uses a 9-pin connector configuration

. While pinouts can vary slightly between aftermarket manufacturers, the following technical analysis from

identifies the most common pin identification for this model: Common 9-Pin Configuration Pins 1 & 2 (Negative/Ground):

These are the larger blades typically found on the far left of the connector. Pins 3 & 4 (SMBus Communication): SMBus Clock ( cap S cap C cap L SMBus Data ( cap S cap D cap A Pin 5 (Temperature/ID):

Usually dedicated to an internal thermistor for battery temperature monitoring. Pins 6 & 7:

often listed as "No Connection" (NC) or system-specific identifiers in standard 9-pin layouts. Pins 8 & 9 (Positive/V+):

The larger blades on the far right, typically carrying the battery's output voltage (10.8V or 11.1V). Configuration Summary Table Identification Notes Connected to battery negative terminal. Clock (SCL) Used for I2C/SMBus communication. Data (SDA) Used for I2C/SMBus communication. Often connected to a 10k NTC thermistor. NC / System Often unused or for "System Present" logic. Connected to battery positive terminal. Important Note:

Some versions of this battery may require Pin 6 (System Present) to be bridged to Ground (GND) to activate the output voltage for testing or charging outside the laptop. You can find further technical guides and user manuals for this battery family on the HP Support Portal Are you planning to rebuild the battery cells or are you testing the output with a multimeter? HP MU06 Long Life Notebook Battery - Setup and User Guides

The HP MU06 notebook battery typically features a 9-pin connector configuration, which is a common "classic" layout for HP batteries using the SMBus communication protocol. HP MU06 Pinout Configuration

While HP does not officially document pinouts for end-users, community analysis and specialized battery testing tools (like the NLBA1 Analyzer) define the standard 9-pin layout as follows: Pin Number Description 1, 2 Ground (GND) Negative battery terminal (connects to chassis ground). 3 SMBus Clock (SCL) Communication clock line for the battery management system. 4 SMBus Data (SDA) Communication data line for querying battery status. 5 System Present

Often a "detect" pin; may need to be pulled to ground to activate output. 6, 7 NC / Reserved Often unused or reserved for internal temperature sensors. 8, 9 Battery Positive (+) Positive battery terminal (Vbat). Key Technical Details

Voltage: Typically 10.8V or 11.1V for a 6-cell configuration.

Communication: Uses the SMBus protocol. Pin 4 (Data) and Pin 3 (Clock) are often protected by Zener or TVS diodes to prevent ESD damage.

Activation: Some versions of this battery require Pin 5 (System Present) to be grounded before it will provide voltage to the external terminals. The HP MU06 is a standard notebook battery

Identification: If you are looking for the exact pinout for a specific variant, refer to the HP Battery Pinout Forum which maintains a database of user-submitted configurations.

Are you trying to test this battery externally or troubleshoot a charging issue within the laptop?

The request was simple, typed into a search bar at 3:00 AM in a dimly lit workshop that smelled of solder flux and cold coffee.

"hp mu06 notebook battery pinout configuration link"

Elias hit 'Enter' and leaned back, the hum of the server rack in the corner filling the silence. He wasn't a hacker, not really. He was a preservationist. In a world where hardware was increasingly designed to be disposable, Elias was the surgeon trying to keep the old guard alive.

His current patient was a battered HP Pavilion G6, a machine that had seen better days. It wouldn't boot. The official diagnosis was a dead motherboard, but Elias knew better. The machine was fine; the battery logic was just confused. He needed to bypass the safety handshake and wake the thing up. For that, he needed the map.

The search results loaded. Most were dead links, forums from 2012 that had long since dissolved into 404 errors, or shady "download our driver updater" scams. But the third result was different.

It was a simple text file hosted on a forgotten university server. The title matched his query exactly: hp_mu06_config.txt.

He clicked it.

The screen filled with numbers. It wasn’t HTML; it was raw, beautiful data.

PIN 1: VCC (Voltage Common Collector) PIN 2: VCC PIN 3: SCL (Clock - System Management Bus) PIN 4: SDA (Data - System Management Bus) PIN 5: ID (Identification Resistor) PIN 6: THM (Thermal Sensor) PIN 7: CLK (Clock - optional) PIN 8: GND (Ground) ...

Elias grabbed his multimeter. He didn't just need the text; he needed the voltage. He probed the connector on the battery itself.

"Come on," he whispered.

He stripped a small section of wire. He needed to short the clock and data pins momentarily to reset the battery's internal smart chip—a trick known as 'jump-starting the soul' in the repair community. The official HP documentation would never tell you this; they wanted you to buy a new $80 battery.

He connected the leads. BEEP.

A spark. Tiny, blue, instantaneous.

He pulled the wires away and slapped the battery back into the plastic chassis of the laptop. He plugged in the AC adapter. The small LED light near the charging port usually glowed orange for "charging" or white for "full." It had been dark for weeks.

He watched.

One second. Two seconds.

A flicker of amber light. Then, a steady, reassuring glow.

"Got it," Elias grinned.

He reached for the power button. The machine whirred to life, the fan spinning up, the screen flashing the old HP logo. He had bypassed the lockout. He had used the forbidden map to bring the dead back to life.

He closed the browser tab containing the link. He didn't need to save it to bookmarks. He had already burned the configuration into his memory. The digital graveyard would have to wait; he had work to do.

A very specific request!

I've searched for you, but I couldn't find a direct link to the pinout configuration for the HP MU06 notebook battery. However, I can guide you on how to find the information or provide some general details that might be helpful.

Why is it hard to find? Battery pinout configurations are typically considered proprietary information by manufacturers, and as such, are not always publicly available. Additionally, pinout configurations can vary across different battery models, even within the same manufacturer.

Possible sources:

  1. Manufacturer's documentation: You can try contacting HP directly or checking their official website for documentation on the MU06 battery. They might provide a datasheet or a technical document with the pinout configuration.
  2. Battery supplier websites: Look for battery suppliers or distributors that sell the HP MU06 battery. They might provide specifications, including the pinout configuration, on their website.
  3. Forum and discussion boards: Websites like Reddit's r/LaptopRepair, r/Battery, or forums dedicated to laptop repair might have discussions or posts about the HP MU06 battery pinout configuration.

General battery pinout configuration: While I couldn't find the specific pinout configuration for the HP MU06 battery, I can provide some general information about battery pinouts.

Typically, a laptop battery pinout configuration includes:

Safety notice: When working with batteries, make sure to follow proper safety procedures to avoid damage, injury, or electrical shock.

The HP MU06 notebook battery Go to product viewer dialog for this item.

is a widely used power source for a vast range of legacy HP Pavilion and Compaq Presario laptops. Understanding its pinout configuration is essential for DIY repair enthusiasts, battery rebuilders, or anyone using tools like the NLBA1 Laptop Battery Analyzer to diagnose charging issues. HP MU06 Pinout Configuration Details

The MU06 typically features an 8-pin connector. While pinouts can vary slightly by specific sub-model, the common industry-standard configuration for this series is: Pin 1: Negative (Ground/GND) Pin 2: Negative (Ground/GND) Pin 5: SMBus Clock (C/Clk) Pin 6: SMBus Data (D/Data) Pin 8: Positive (+)

Note: In some variations, the battery may require a "System Present" or "Battery Enable" pin (often Pin 4 or 7) to be jumped to ground to activate the voltage output. Technical Specifications

is a 6-cell Lithium-Ion battery designed for high endurance.

The HP MU06 battery is a replacement battery designed for certain HP notebooks. To provide a review, I'll need to make some general assumptions.

Step-by-step re-celling procedure:

  1. Disconnect old cells from BMS board (cut nickel strips one by one to avoid shorts).
  2. Preserve BMS power – Connect a temporary 3S 11.1V supply to B+ and B- before removing the original cells. This prevents BMS reset.
  3. Solder new cells (high-drain 18650 or pouch cells, matching original capacity – typically 2200mAh to 2600mAh per cell).
  4. Connect cell order correctly:
    • Cell 1 negative = B-
    • Cell 1 positive = Cell 2 negative = VBAT_MID (not brought out to connector, used internally)
    • Cell 3 positive = B+
    • (Check your BMS layout – some MU06 use 2P3S configuration)
  5. Power on the BMS – Once all cell voltages match within 30mV and total voltage > 9V, the BMS should wake.
  6. Reset the fuel gauge – Use an SMBus programmer (e.g., BQ2020, EV2300) to send a "Reset" command to the BQ40Z50 or BQ3050 chip common on MU06.
  7. Link via SMBus – Use software like BatteryMon or BE2Works to write initial capacity (DesignCapacity = 41Wh typical for MU06).

Warning: Without resetting the BMS, the laptop will still show "0%" or "Replace Battery" even with new cells. Pin 1: VBATT (Battery voltage) Pin 2: GND

Review Considerations

When evaluating the HP MU06 notebook battery, consider the following:

Limitations of This Report

This analysis is based on publicly available data and community insights. The exact HP MU06 pinout may vary by batch or design iteration. Always verify with the manufacturer or a verified reference before proceeding with hardware modifications.

This report is provided for educational purposes only. Use the information at your own risk.

The HP MU06 notebook battery is a standard 6-cell Lithium-ion pack used across dozens of Pavilion, Compaq, and Envy models. Identifying its pinout is essential for troubleshooting or external charging. 🔋 HP MU06 Pinout Overview

The battery connector typically features 7 interface slots. When looking at the battery with the connector facing you and the labels upright, the pins are generally mapped as follows (from left to right):

Pin 1: Positive (+) – Main power output (approx. 10.8V–11.1V). Pin 2: Positive (+) – Redundant power rail.

Pin 3: System Present – Bridges to ground to "wake" the battery. Pin 4: Clock (SCL) – SMBus communication for data.

Pin 5: Data (SDA) – SMBus communication for battery telemetry. Pin 6: Negative (-) – Ground/Common. Pin 7: Negative (-) – Ground/Common. ⚠️ Technical Specifications Voltage: 10.8V or 11.1V DC. Capacity: 4200mAh to 5200mAh (standard). Communication Protocol: SMBus (System Management Bus).

Compatible Series: G42, G62, G72, Pavilion dv6, dv7, Compaq Presario CQ42, CQ62. 🔗 Resource Links & Documentation

For detailed schematics, visual diagrams, and community-verified test results, refer to these databases:

LaptopBatteryPinout.com: A comprehensive database for DIY repairers. Search "MU06" for specific wiring diagrams.

AllPinouts.org: General hardware reference for laptop battery interfaces.

HP Support Community: Official forums often contain engineering manual snippets shared by technicians.

💡 Safety Note: Never short Pin 1 and Pin 7. Modern Li-ion batteries have internal protection circuits, but manual probing can cause permanent damage or fire.

The HP MU06 notebook battery uses a multi-pin connector typical of many HP Pavilion and Envy series laptops. While official technical pinout diagrams are not standardly published in user manuals, technical communities and teardowns provide the following configuration: HP MU06 Pinout Configuration

Based on technical analysis from communities like Kuzyatech, the 9-slot connector (often labeled with symbols) typically follows this arrangement:

Pins 1 & 2 (Negative/GND): Located at the far end, often identified by measuring resistance to the battery case ground.

Pins 3 & 4 (SMBus Communication): These handle data transfer between the battery and the laptop. Pin 3: I2C Clock (SCL). Pin 4: I2C Data (SDA).

Pin 5 (Temperature/ID): Used for temperature monitoring (NTC thermistor) or system identification.

Pins 8 & 9 (Positive/V+): These are the power delivery pins. Key Resources & Technical Blogs

For a deeper dive into the circuitry and "waking up" these batteries, you can refer to these specific community-driven guides:

In-Depth Testing Blog: The Kuzyatech Testing Guide provides a detailed breakdown of identifying pins using an oscilloscope and multimeter.

Repair & Calibration Forum: Detailed discussions on resetting the BQ20Z40/45 chip used in the MU06 can be found on the Laptop Battery Analyzer Forum.

HP Official Guides: For basic physical installation and user documentation, visit the HP MU06 Support Page. HP MU06 Long Life Notebook Battery - Setup and User Guides

Title: Navigating the Complexities of the HP MU06 Notebook Battery Pinout Configuration

Introduction In the realm of portable computing, the battery serves as the lifeblood of the device, enabling the mobility that defines the laptop experience. Among the various power units utilized by Hewlett-Packard (HP) in their Pavilion and G-series laptops, the MU06 battery stands out as a prevalent model. For technicians, electronics hobbyists, and DIY repair enthusiasts, understanding the "pinout configuration"—the specific map of electrical connections within the battery connector—is often the key to diagnostics and repair. However, obtaining a verified and accurate pinout configuration link is not merely a matter of a simple search; it involves navigating a landscape of technical data, safety protocols, and proprietary design.

The Anatomy of the MU06 Battery To understand the pinout, one must first understand the hardware. The HP MU06 is a Lithium-Ion battery pack, typically rated at 10.8V or 11.1V with a capacity often around 4400mAh or 5200mAh. It usually features a multi-pin connector interface. While an amateur might assume a battery only requires a positive and negative terminal, the MU06 connector often features six or more pins. This complexity arises because modern "smart" batteries do not merely store energy; they communicate with the laptop’s System Management Controller (SMC).

Decoding the Pinout Configuration The search for a pinout configuration link is usually driven by a specific need: reviving a dead laptop, bypassing a failed charging circuit, or repurposing the battery cells for other projects. A standard pinout configuration for an MU06 battery typically reveals the following structure:

  1. Power Terminals (Positive and Negative): These are the main high-current pathways used to charge the cells and discharge energy to the laptop.
  2. Thermal Sensor (Thermistor): A critical safety pin that sends temperature data to the laptop to prevent overheating during charging.
  3. System Management Bus (SMBus): This usually consists of a Data line (SDA) and a Clock line (SCL). This is the "intelligence" of the battery. It allows the battery to tell the laptop its current charge percentage, health status, cycle count, and manufacturer data.

For users seeking the specific pinout, the challenge is that HP does not publicly release schematics for their proprietary connectors. Consequently, a direct "official link" to the pinout does not exist in the public domain. Instead, technicians rely on reverse-engineered diagrams shared on technical forums, such as the Badcaps forum, NotebookReview, or specialized repair subreddits. A verified pinout diagram is essential because mixing up the SMBus lines with the power lines can permanently damage the laptop’s motherboard.

The Importance of the "Smart" Feature The complexity of the MU06 pinout highlights a shift in consumer electronics. In older technologies, a battery was a passive device. Today, the pinout configuration enables a dialogue between the battery and the host. If the communication pins in the pinout are damaged or incorrectly bridged, the laptop may refuse to boot, display an "unauthorized battery" error, or fail to charge, even if the power cells inside the MU06 pack are fully functional. This is why access to a correct pinout link is vital—it allows a technician to isolate whether the fault lies in the cells themselves or in the communication logic.

Safety and Ethical Considerations While the technical curiosity to decode the MU06 pinout is understandable, it comes with significant risks. Lithium-Ion batteries are volatile. Unlike standard AA batteries, short-circuiting a pin on a MU06 battery due to an incorrect pinout reading can lead to immediate thermal runaway, resulting in fire or explosion. Furthermore, bypassing the safety sensors (the thermistor and SMBus pins) to force a battery to work is dangerous. Any attempt to utilize the pinout configuration should be accompanied by proper safety equipment and a thorough understanding of electronics. It is also important to respect proprietary boundaries; while repairing a device one owns is generally acceptable, using pinout data to manufacture counterfeit batteries is illegal and unethical.

Conclusion The HP MU06 notebook battery is a sophisticated piece of engineering that goes beyond simple energy storage. Its pinout configuration is a gateway to understanding the complex relationship between power hardware and software logic. While an official link to the configuration schematic remains proprietary, the collective knowledge of the repair community provides the necessary maps for those willing to look. However, with this knowledge comes the responsibility of safety. Whether one is diagnosing a charging failure or repurposing hardware, the pinout is a tool that demands respect for both the technology and the potential dangers it harbors.

Overview

The HP MU06 notebook battery is typically designed to provide a reliable power source for compatible HP laptops. Here are some key points:

🔋 Typical HP MU06 battery pinout (6-pin)

Most HP MU06 batteries use a 6-pin connector (common on HP notebooks like Pavilion 15, 17 series). The pins are numbered from left to right (looking at the battery’s edge connector, contacts facing you).

| Pin | Signal | Function | |-----|----------------|----------------------------------------| | 1 | B+ (12–16V) | Battery positive terminal | | 2 | B+ (12–16V) | Battery positive (redundant for current)| | 3 | SMBC | SMBus clock (battery communication) | | 4 | SMBD | SMBus data | | 5 | GND | Ground | | 6 | GND | Ground |

⚠️ Important: Do not short pins 3 or 4 to ground or B+. The SMBus lines run at 3.3V logic. Some HP batteries also have a T pin (thermistor) instead of a second GND — check your physical connector.

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hp mu06 notebook battery pinout configuration link