Q: What can I do if my ULTIMATE EARS BOOM turns off with a “Critical Battery” message even though it is fully charged?
A: If your ULTIMATE EARS BOOM turns off with a “Critical Battery” message even though it’s fully charged, it’s usually due to a temporary problem where the charge can’t be detected. Here’s how to resolve it:
- Plug your speaker into a USB port on your computer using the supplied USB cable.
- Turn your ULTIMATE EARS BOOM on.
NOTE: Your operating system may install USB software automatically.
- Disconnect your ULTIMATE EARS BOOM from your computer.
- Turn your ULTIMATE EARS BOOM off and then back on.
Your ULTIMATE EARS BOOM battery error should now be corrected.