J100 Battery Voltage Testing Using a Multimeter

This article outlines the steps to effectively test the voltage of the J100 battery using a multimeter, ensuring accurate readings and proper handling of battery health.

Battery Voltage Testing Using a Multimeter

Click Here for Multi meter used in video

 

Key Steps

Understanding Battery Specifications 0:00

  • A LiPo battery consists of 14 cells.

  • Normal discharge voltage per cell: 3.0 volts.

  • Fully charged voltage per cell: 4.2 volts (some may use 4.25 volts).

 

Interpreting Voltage Readings 0:41

  • Total voltage for 14 cells at normal discharge: 42 volts or above.

  • Total voltage for fully charged battery: 58.8 volts.

  • If voltage is below 42 volts, a cell may have a problem.

 

Testing the Battery Voltage 2:05

  1. Turn on the battery: Press and hold the power button until the battery lights up and quick press and release. Battery should be on.

  2. Select terminals: Use the top terminals for testing, avoiding the inner two pins (signal information).

  3. Insert multimeter probes: Connect the multimeter probes to the selected terminals to get a reading.

 

Analyzing the Results 3:14

  • Record the voltage reading displayed on the multimeter.

  • Calculate voltage per cell by dividing total voltage by 14.

  • If reading is below 42 volts, it indicates a potential cell issue.

Safety Precautions 1:44

Further Troubleshooting 3:48

  • If voltage is within range but issues persist (e.g., flashing lights), further troubleshooting is needed:

    • Charge the battery.

    • Connect to the drone to retrieve battery information.

Click Here to go to Battery Troubleshooting article.

Cautionary Notes

  • Always handle batteries with care to prevent damage or accidents.

  • Do not attempt to repair faulty cells; replace the battery instead.

Tips for Efficiency

  • Ensure the multimeter is calibrated and functioning before testing.

  • Familiarize yourself with the battery management system to identify issues quickly.

  • Keep a log of voltage readings for future reference.

 

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