notebook battery (also known by spare part numbers such as 593553-001 or HSTNN-UB0W) utilizes a standard 9-pin connector
System Present Pin (Pin 6)
: If you are testing this battery outside of a laptop, you may need to connect Pin 6 to Ground (Pin 1/2) to "wake up" the battery and see voltage on the positive pins. Safety Lock : Most MU06 batteries use Texas Instruments BQ20Z45
7 to 9 pins
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)
Practical notes and troubleshooting tips
5.1. No Direct Power from PRES
Purpose: Allows the laptop to detect that a battery is physically present and the SMBus is ready.
Short Circuit Risk:
Pins 1/2 and 6/7 are very close together. Use insulated probes to prevent a high-current short.
1. SMBus Communication
Pins 4 and 5 (SCL/SDA) are critical for the laptop to recognize the battery. If these lines are broken or the Battery Management System (BMS) has locked the data, the laptop may report "Battery Not Detected" or refuse to charge the unit. When repurposing this battery for external use, you usually only need Pins 1/2 (Positive) and Pin 7 (Negative/Negative) to draw power. However, some BMS boards require a "wake-up" signal on the data lines to output voltage.
6 & 7
Battery temperature sensor (Thermistor) or identification pin. NC / Mystery
notebook battery (also known by spare part numbers such as 593553-001 or HSTNN-UB0W) utilizes a standard 9-pin connector
System Present Pin (Pin 6)
: If you are testing this battery outside of a laptop, you may need to connect Pin 6 to Ground (Pin 1/2) to "wake up" the battery and see voltage on the positive pins. Safety Lock : Most MU06 batteries use Texas Instruments BQ20Z45 Hp Mu06 Notebook Battery Pinout Configuration
7 to 9 pins
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) notebook battery (also known by spare part numbers
Practical notes and troubleshooting tips
5.1. No Direct Power from PRES
Purpose: Allows the laptop to detect that a battery is physically present and the SMBus is ready.
Pins 4 and 5 (SCL/SDA) are critical for the laptop to recognize the battery. If these lines are broken or the Battery Management System (BMS) has locked the data, the laptop may report "Battery Not Detected" or refuse to charge the unit. When repurposing this battery for external use, you usually only need Pins 1/2 (Positive) and Pin 7 (Negative/Negative) to draw power. However, some BMS boards require a "wake-up" signal on the data lines to output voltage.
6 & 7
Battery temperature sensor (Thermistor) or identification pin. NC / Mystery