This code was forked from Nick Dademo's repo and modified to show more battery registers.

If using the CP2112 circuit board shown above and described in step 15 of: https://www.instructables.com/Battery-Powered-Raspberry-Pi-in-Repurposed-Laptop/

• Wire the clock, data, and ground from the board to the cooresponding laptop battery connector pins.
• The board will pull up the clock and data to 3.3 volts.
• Connect a USB cable from a Windows 10 PC to the board.

If using the Silicon Laps CP2112EK evaluation kit:

• Ensure SDA and SCL lines are pulled-up to a voltage which is compatible with that of the target battery interface.
• Setting J7=VIO pulls up the bus to 3.3V - this should be compatible with the majority of applications.
• If you require a different bus voltage - Set J7=EXT_PU and connect TB1(EXT_PU) to the battery interface voltage.

Program Output will be the text window shown above:

Tools/Environment:

• Silicon Labs CP2112EK: http://www.silabs.com/products/interface/Pages/CP2112EK.aspx or build the CP2112 circuit board shown in step 15 of: https://www.instructables.com/Battery-Powered-Raspberry-Pi-in-Repurposed-Laptop/
• Texas Instruments bq20z65-R1 Gas Gauge: http://www.ti.com/product/bq20z65-r1 or similar Battery Management Chip within the laptop battery.
• Windows 10 64-bit
• Visual Studio 2019 is only needed if you want to modify the C code.
• If no mod's are needed, run the cp2112_demo.exe from a folder that also contains the two .dll files found at this repo.