Battery backup got less after ios 15.6 update

Check Settings>Battery>Battery Health. What do you see there? If your Battery Health is less than 80%, you need a battery replacement. Then check Settings>Battery and see what app or apps are using the highest percentage of battery on the device and start troubleshooting there.

Abubakar_Rana wrote: "...My battery health is same as on ios 15.5 above 95%..."

95% maximum capacity in your iPhone 8 Plus implies the original battery has been replaced. If so, was it replaced by a qualified technician using a genuine iPhone battery?...

About genuine iPhone batteries

Repair Provider Verification - Official Apple Support

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Memejojo73 wrote:

my photos app runs in background for 14 hours of the day now, no way to stop. THIS BUG NEEDS FIXING

Use Background App Refresh

If you want suspended apps to check for new content, go to Settings > General > Background App Refresh and turn on Background App Refresh. If you quit an app from the app switcher, it might not be able to run or check for new content before you open it again.

Switch apps on your iPhone, iPad, or iPod touch - Apple Support

feliperj wrote:

Ok, look, I see a kind of a battle here.

On one side there are users level 1 (less than 50 points) saying that their batteries were ruined.

On the other side there are users level 7 (more then 20.000 points) saying that its not Apple's fault.

I quit, this conversation will go nowhere.

No one has said whose "fault" anything is. I have expressed no opinions on what may or may not be wrong with your battery. What we are saying is that only Apple can tell you what Apple will do. It doesn't matter if I think Apple should replace every battery for every person who requests it and for free. It only matters what Apple decides they are willing to do for you in your specific case. And the only way you can find that out is by asking Apple.

Where did you get the battery replaced? Was it by Apple or an Authorized Apple Service Provider? If so, contact them for assistance. If you did the replacement or it was done by an unauthorized shop, no, Apple won't help you with it.

feliperj wrote:

That is not the question. I have not replaced it yet.

The question is: "If I replace my battery and the drain continues, will Apple refund me?"

Maybe, maybe not. It would depend on 1) who replaced the battery in the first place (see my previous answer) and 2) what they determined was the cause of the problem. Also, of course, your phone would still need to be covered by warranty.

No one here can speak for Apple or say what they may or may not do. We are users.....just like you.

My opinion......I would not expect Apple to refund anything unless the performance of the new battery falls below Apple's parameters for battery performance......and not your expectations. In other words, Apple is calling the shots.....not you.

feliperj wrote:

ok, lets me rewrite my question:

"If I replace my battery by an original Apple battery in an Authorized Apple Service Provider and the drain continues, will Apple refund me?"

See number 2 in my answer above.

Ok, look, I see a kind of a battle here.

On one side there are users level 1 (less than 50 points) saying that their batteries were ruined.

On the other side there are users level 7 (more then 20.000 points) saying that its not Apple's fault.

I quit, this conversation will go nowhere.

Same here , my photos app runs in background for 14 hours of the day now, no way to stop. THIS BUG NEEDS FIXING

The thing is the photos app isn’t listed under the background app refresh list though anyway .

My health is 90% and I’m getting 3 hours use of iPhone 12 Pro!!!!!! Feel like throwing it at the wall!

If I replace my battery and the drain continues, will Apple refund me?

That is not the question. I have not replaced it yet.

The question is: "If I replace my battery and the drain continues, will Apple refund me?"