iOS 13.5.1 battery drain

Something strange now. Probably normal, but I like to know the reason...

When my Xs Max isn't on the charger at night, he almost doesn't consume energy. During the day, no matter I stay at home or I'm at work (at work means driving around connected to the bluetooth handsfree. +/- 8 customers a day, +/- 30 min at their home), the battery drains faster. See the attachment...

What's the difference between night and day in iOS 13.6?

Sunday my iPhone was laying on my desk the whole day and it had the same "battery drain" as today; I didn't touch the phone and it had no blue bars what tells there're apps running.

So UPDATE:

After 10 days at apple service this is what they came up with..the 1y1month old Iphone 8 is so demaged they would have to exchange the whole matric plate (or whatever it's called) so they just offered me to buy again my old phone new with reduced price (seriously)!!!!! Like I would buy my old phone again - I have Iphone 6 that still works..Iphone shouldn't die like this after a year in use.

So I didn't wanna just buy new phone and give them again 600-800€ so I called up service center that specializes in apple repairs and they will repair my phone in one or two days for 110€. Problem fixed.

Just wana say apple service is overpriced and really not worth the money they charge..oh yeah had to pay 14,90€ for their 10 days assesmant that they can only sell me my old phone with reduced price LOL Thank you for nothing apple

Not saying that's wrong, or not worth trying, but does also it strike anyone else as completely insane that this should even have to be suggested for the thousand dollar phones Apple sold us? Turning off major features in hope that it might maybe fix crippling battery drain? 42 pages on just this thread... and Apple? Silent?

Yes I read that when it came out. Bloke has bad battery in old phone Bloke gets new battery. Bloke praises Apple store. Bloke contemplates upgrading his old phone.

Not exactly the Forbes killer article.

Wow! Peter, that was a really helpful comment! Thank you for the recommendation. You are a top notch, really informative participant in this discussion. With help like yours, it’s a wonder you are not in charge of Apple Support and service.

I think I’ll check out those Samsung’s! And I thought this discussion board was for helpful Apple suggestions. Your repeat of “wipe your phone clean and get a new battery”, along with saying people really do not have the problems them have or that they are nonsense seems to be not in keeping with the board rules of operation. But thank you for pointing out that Samsung May be a good choice. That IS HELPFUL!

I was having the same issues but as soon as I was told that it’s all in my mind, and no one else is having issues, then all the problems disappeared It was an amazing experience and shows once again the power of positive thinking.

Seeing an increase in my battery drain too!

absolute joke on me ipad pro just stays on 100% do a hard reset 20mins later and its down to 70% major battery issue with this update.

hopefully they see this tread and act as this is a nightmare at the min

Exactly how I feel!. Clearly an issue with the iOS, I don't see the point doing a backup and restoring something that was working fine prior to this update.

I have the same problem!! previously no problems after the update 13.5.1 battery empty in no time by apps that remain active in the background !!

Or the other, the hardway, making a massive suit. I believe is easier for Apple to fix the problem with a patch like 13.5.2

what problem? I don't have it.

What needs fixing other than you removing the bad apps or bad update?

Read the whole thread. It's why we bother typing.

There is no difference, but people who do not have the issue see this difference (OTA vs user-unfriendly) as the solution. It is not.