I encountered this Issue whilst playing and I had my coordinates enabled always, then my laptop shut down. I didn't see the indicator because I had my coordinates enabled and it annoyed me. Maybe make it toggleable In the future to prevent this issue.

Thanks for the pointer, I'll see about adding such an option in the next couple days.

Hello, I unfortunately did not have as much time as anticipated, but here we go finally!

I've now implemented this feature and changed the default behavior a little:

• If you've set any debug entry to "always" the battery indicator will still show
• You now get the option of choosing whether the indicator shows when actually pressing F3

Minecraft's debug rendering and the battery indicator might obviously render in the same place by default, but that's already configurable in the mod's settings. I will create a release with these changes tomorrow morning.

This is now resolved in v3.10.0.