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NNTP-Posting-Date: Fri, 02 Aug 2024 18:27:23 +0000
From: ant@zimage.comANT (Ant)
Subject: Re: Hot iPhone 13 lost a lot of battery power within 3.5 hrs.
Newsgroups: misc.phone.mobile.iphone
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Jolly Roger <jollyroger@pobox.com> wrote:
> On 2024-08-01, Chris <ithinkiam@gmail.com> wrote:
> > Ant <ant@zimage.comANT> wrote:
> >> Chris <ithinkiam@gmail.com> wrote:
> >>> Ant <ant@zimage.comANT> wrote:
> >>>> Hello,
> >>>> 
> >>>> Weird/Odd. Hot iPhone 13's iOS v17.6 (updated from iOS v17.5.1
> >>>> yesterday) battery power percentage dived from recharged 88% to 23%
> >>>> from 6 PM to 9:30 PM while out to eat dinner in a crowded
> >>>> restaurant and commute to there and back home. Battery statistics
> >>>> said it was hot to recharge at 88% max. Usage shows "Find My" and
> >>>> weak cellular using half in the background for the first hour, but
> >>>> after that was just "Find My".  Battery health shows 89% which is
> >>>> normal for this iPhone from 2/1/2022.  What's going on? Is this a
> >>>> new bug or something? :/
> >> 
> >>> Higher than normal battery drain is expected with a new version of
> >>> ios as the caches and indexes get refreshed. 
> >> 
> >>> Give it a day or so to settle down. 
> >> 
> >> Is it supposed to run even when on battery only when not at home? It
> >> would had been nice if it happened when connected to a power charger
> >> at home. :(
> >
> > It's normally not an issue and runs in the background. Occasionally it
> > drains more than normal for whatever reason. You seem to have hit one
> > of those occasions. 
> >
> > Actually, you also mentioned weak cellular signal which is very
> > effective at draining battery power. 

> Absolutely. When the cellular (or WiFi) signal is low, the device boosts
> the radio power which naturally drains the battery faster. Combine that
> with the normal post-installation indexing and cache rebuilds, and you
> have a recipe for abnormally-high battery drain.

I wished there was a way to tell iOS not to the indexes and rebuilds. I 
know using airplane mode for disabling cellular would work, but it was 
in the purse so...
-- 
"[T]hrough Christ Jesus the law of the Spirit of life set me free from the law of sin and death." --Romans 8:2. D&W3!
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