1 glowing red light — Battery too hot or too cold

What does 1 glowing red light mean?

The battery has detected a temperature outside its safe operating range. This can happen if the battery is stored in extreme heat or cold, or if it has just been used heavily or charged in a very cold environment.

• Battery temperature is too high
• Battery temperature is too low

Click steps to track your progress.

1. 1

   Bring the battery to a moderate temperature (e.g., room temperature) for a while.

2. 2

   Wait for the battery to reach an acceptable temperature before attempting to use or charge it.

3. 3

   Ensure charging and storage are done in a temperature-controlled environment.