Through the battery’s communication interface, this board extracts key data such as:
- Individual cell voltages
- Battery pack temperature
- Total pack voltage and charge state
- Communication status and fault indicators
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$29.98
The Battery Diagnostic Communication Board allows in-depth troubleshooting of tool batteries by communicating directly with their internal systems. It provides real-time diagnostic access for advanced users, makers, and technicians seeking to identify weak or failing battery packs.
Use the github repository from mnh-jansson for the software.
https://github.com/mnh-jansson/m18-protocol
Compact diagnostic interface for battery communication testing and troubleshooting.
Reads live cell voltages through battery communication
Detects imbalanced cells in real time
Plug-and-play
Designed and tested in Texas, USA
Reliable, validated, and lab-tested hardware.
Key Features
- Reads battery diagnostic data through communication protocol
- Detects weak or imbalanced cells in real time
- Displays pack temperature and total voltage
- Compact, plug-and-play design
Works with standard USB-to-serial adapters (if applicable) - Designed for testing and educational use only
Specifications
- Input: Battery communication terminals
- Output: Serial data interface (UART/USB depending on variant)
- Dimensions: Compact PCB format
- Power: USB bus-powered
- Use: Diagnostic and analysis only — not for charging or discharging
What's Included
- 1× Battery Diagnostic Communication Board
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