Re: Hot iPhone 13 lost a lot of battery power within 3.5 hrs.

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...
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