Battery drain after reboot

[DROID11]

I've recently noticed that if I have to turn my phone off for any reason, the battery drops by about 25%. What could be causing this?

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[CBMGGM]

Have you flashed any new Rom's?

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[DROID11]

Sorry, should have mentioned I'm completely stock

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[gsDroid]

If you have never done a battery calibration, you should try one. Rooted users can fully charge their phone and delete the batterystats.bin from /data/system. Then re-start the phone and let the battery run down to 5% or so, then fully recharge it. For stock users, there are apps in Play (market) that you can use without being rooted, but some get poor reviews due to intrusive ads. I suppose you could install one, calibrate, and delete the app.