Re: Battery discharge when on but unconnected

Alan Browne <bitbucket@blackhole.com> wrote:

On 2024-03-05 21:03, bp@www.zefox.net wrote:

I expected one or two percent per day, but it seems quite
a bit faster. After two or three weeks it's ~50% and falls
a percent every couple of minutes when used actively.
 The battery is about six months old, replaced by a local shop.
Maybe I got a dud? Is there a simple test?

 Not likely this is a problem - you can check the battery state under settings, Battery | Battery Heath (Actually not sure the iOS v. in the iPhone 6 supports this).
 Review active apps, some run more than you would think.
 For example I forgot to stop a recording app [Sensor Log], (gyro, accelerometers, GPS, etc.) and it brought down the battery pretty quick.  Either stop it recording or kick out the app and that stops.
 Otherwise, if in normal use it lasts more than a day, it's probably fine (my iPhone 6 would go 2 - 3 days under my normal use; your normal use may be different).

It seems to last several days at 100% and then abruptly plummet, with
no use by me.
It turns out there is a "battery health" option. It reports no "activity"
in the past five days, but two "battery usage" events, one reporting nearly 50%, though of what isn't clear (green, could it be charging?). I notice there's a "low power mode", but I thought turning on airplane
mode and turning off wifi would supercede that. Am I mistaken? Thanks for tipping me off about the battery health feature, I'll watch
more closely in the future.
bob prohaska