Conversatoon with ChatGPT4o:

Prompt: Can a damaged battery health increase?

Response:

No, a damaged or degraded battery health typically cannot improve on its own. Once a battery's health has deteriorated due to factors like age, usage, or physical damage, it continues to degrade over time. However, in some cases, software updates or recalibration might temporarily show an improvement in battery health percentage, but this doesn’t reflect an actual increase in the battery's physical health.

The only way to truly improve battery health is by replacing the battery with a new one. You can maintain battery health longer by avoiding overcharging, keeping the device cool, and minimizing extreme discharge cycles, but the natural aging process is unavoidable.