Forum Discussion

Dougllass's avatar
Dougllass
Tin Contributor
Oct 29, 2026

How does my battery drop from 40% to critical in 30 seconds?

My phone's battery just dropped from 40% straight to critical in about 30 seconds, which seems way too fast to be normal. Has anyone else seen this kind of sudden plunge, and could it be a battery health issue, a calibration problem, or something else entirely?

2 Replies

  • PHANTOM-40417's avatar
    PHANTOM-40417
    Copper Contributor

    I don't see what this has to do with Windows 11, unless you somehow managed to get Windows 11 installed on your phone, which would explain the massive battery drop.

    Regardless, if that is happening, then yes, the battery needs to be replaced. 

  • Mike2291's avatar
    Mike2291
    Copper Contributor

    Good afternoon.

    Sorry you are experiencing battery issues with your mobile.
    Depends what phone you have depends how to see the battery health.
    What phone do you have, make and model?