the info I've found to fix battery problem was to downgrade to the previous version of iOS if its still signed...sign out of iCloud and sign back in...clean install and restore phone as new...and the latest is get a new battery. don't think any of these fix the problem...
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iOS 12 is eating my battery!!!
- Thread starter TinaBelcher
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No they won’t. Even though my phone showed it was throttling (95% health) they refused to change the battery even if I paid. They DFU reset the phone and asked me to install everything from scratch.
They are supposed to. Sounds like you didn't get the service you were supposed to be provided, and should either try a different store, or complaining to management at that store or to Apple directly.
Did a full restore then reinstall of all my apps, music, etc. via iCloud on my iPhone SE 64GB.
after leaving the house before 9am, some light twitter use, emails, instagram- and mostly working out what music I want to listen to while working (skipping and selecting tracks), I'm only down to 89%. This time last week I was down to probably 60%. Fingers crossed on what hopefully decent percent I'll be down to by 6pm when I leave the office.
after leaving the house before 9am, some light twitter use, emails, instagram- and mostly working out what music I want to listen to while working (skipping and selecting tracks), I'm only down to 89%. This time last week I was down to probably 60%. Fingers crossed on what hopefully decent percent I'll be down to by 6pm when I leave the office.
Ok, so you're referring only to an iPhone that was purchased with an older OS. I'm just wondering though about an iPhone 7 purchased new today. It has ios12 from the factory. Or at least before it's sold. Are you aware of any accounts, anecdotal or otherwise, of different, i.e., better, battery performance with a new iPhone 7 as opposed to a phone that was new with 10 or 11 but degraded after updating. I'll keep looking, but as far as I've seen, the complaints come from updaters, rather than folks who bought a 7 or 8 since ios12.
Again, my apologies if this has been discussed here already.
I can provide examples, but not comparisons, sorry:
All I purchased new with a newer version of iOS was an iPhone 5s on iOS 8, and an iPhone 6s on iOS 10. I don't know what the battery life of the 6s is because I haven't used it like I use it. The 5s seemed okay. Battery life was not good when pushed (normal usage but higher brightness and LTE as opposed to Wi-Fi would send it from 7 hours to 4), but I am unsure of the battery life of the 5s on iOS 7 with my specific usage.
I can't help you, because I don't have comparisons. The only device I used like that was a 5s, and I never used a 5s on iOS 7. It seemed that it could be higher, in my honest opinion, but I don't know if that was the battery life of the 5s itself due to battery size or iOS 8 decreased it, even if the decrease was minimal.
Battery threads with screenshots on this forum when the 5s was launched seemed generally slightly higher - especially on LTE and higher brightness, I remember thinking mine was a little low - but that's pure speculation, I don't have a direct way of comparing.
PS: I did read the entire 50/60-page iPhone 5s thread, I didn't base my conclusion off of a single result, but these conclusions weren't drawn from personal experience, so take them with a grain of salt.
In the UK Apple will replace your battery for you regardless of what the wear is. Replacing your battery is exactly that, it's your battery. Apple get paid which is what they want.
You pretty much hit it in the nail. Apple doesn't not allow old device to have great battery life, regardless whether the battery is new or not. (my own experience agrees)
The only sure-fire way to retain good battery life is to NOT update iOS. Period.
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Not to update iOS for one, that you have to set up as new to get better battery life for another.
Not to update iOS is not misinformation. Every single update was negative in some way for every single device. If it wasn't so far, it will be eventually (although these cases are few and far in between). Take the 6s, for instance: iOS 10 was fine. iOS 11 was a disaster. The iPod Touch 4G: iOS 5 was mostly fine, although quite slower than 4. iOS 6 was a disaster. iPhone 7: iOS 11 was awful.
That is, in my humble opinion, a fact. My advice might be wrong on some instances, but I don't intend to deliberately deceive anyone. As I said earlier, I just want to help.
Waste of time.. If I didn't have a second phone I would have just restored from backup again. Going to replace my battery in a month or so.
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iOS 6 was a disaster? Dude it was brilliant! My old iPhone 5 still runs it..! Its awesome!
iOS 6 was a disaster on the iPod Touch 4G. Likewise, I have an iPod Touch 5G on iOS 6, and it is, too, blazing fast.
If you don't go more than 1 iOS update, then yes, you'll probably be more or less fine, barring exceptions. Any older than that and I'd be pretty confident to say that you will encounter problems, mainly related to performance and battery life differences. Bugs notwithstanding.
Not my experience, battery issues likely appear with more than one update because in most cases by then the phone battery is already been cycled quite a bit.
As I've mentioned before, my original SE didn't like the iOS12 upgrade one bit. Straight after the upgrade battery life plummeted and unexpected shutdowns occurred. Couldn't get a day out of it. The Genius Bar replaced the SE as it was only 10 months old. The replacement SE was pre-installed with iOS 11.4.1 but before doing anything with it I loaded iOS 12 through iTunes and new setup. Same setup as the original but now get days of usage with the SE on iOS12 
My veteran launch day iPhone 6 Plus is coping fine with iOS12, now down to 93% battery health but easily gets through 2 days on a single charge. See attached.
My veteran launch day iPhone 6 Plus is coping fine with iOS12, now down to 93% battery health but easily gets through 2 days on a single charge. See attached.
Attachments
Only issues I had with my iPhone 6s+, was related to 3rd party apps. iOS 11 was not a disaster. Perhaps it was a disaster on your phone or on some peoples phones, but not for everyone.
I don't - and, obviously can't - speak for everyone. I'm basing off of what I've seen. Performance worsened and battery life was severely crippled in several devices I have personally seen and tried. Not saying it was awful in every single device (mainly because even if it was, people have different tolerance levels both for performance decrease and battery life decrease - someone might not realise if their phone has 30% less battery life, simply because they don't really care as long as it works for them. Same with performance: The phone is noticeably slower but not cripplingly so? Then they might not notice, so they think it works as it did before).
is that why all my iphones and all my iPads have not had any of these massive issues that everyone is griping about? thanks for the info
As I've mentioned before, my original SE didn't like the iOS12 upgrade one bit. Straight after the upgrade battery life plummeted and unexpected shutdowns occurred. Couldn't get a day out of it. The Genius Bar replaced the SE as it was only 10 months old. The replacement SE was pre-installed with iOS 11.4.1 but before doing anything with it I loaded iOS 12 through iTunes and new setup. Same setup as the original but now get days of usage with the SE on iOS12
My veteran launch day iPhone 6 Plus is coping fine with iOS12, now down to 93% battery health but easily gets through 2 days on a single charge. See attached.
From your battery stats, you seem like a v light user... less than 15 mins use for most hours during the day. From 8:30am to 10:25pm at night, you probably hit a total of only 1 hr+ of screen on time usage. With battery down to 83% for one whole day with such light usage, sounds about right!
