ios 8 battery drain issue and Bluetooth issues

Same here with a one year old 5s. Not good!

I'm having a similar issue. I just got my batter replaced last Monday September 15th (since my former battery was fried). My battery was lasting me easily throughout the work day after the battery change. However now my battery is dying more than twice as fast after installing IOS 8 on my iphone 5. My battery life is currently at 70% (9:30AM) from 100% (at 8:00 AM) and most of the time I was driving and not using the phone. I have a new battery and have done all eergy saving techiniques, this is clearly an issue that occured from the IOS 8 installation. Ridiculous that my phone is dying in 4 hours especially that its a breand new battery. WILL THIS BE FIXED SOON? IOS 8 was suppose to be an upgrade on the phone all it seems like is a downgrade and destroys the usage time of the phone. Tried for hours to reinstall ios 7 to no avail. PLEASE FIX THIS APPLE.

All,

again: you need to do to check which app is frying your battery and take action.

Go to: Settings -> General -> Usage -> Battery Usage

For me it was Mail. So I turned off "Push" in Settings -> Mail -> Fetch New Data

and put it on "Manual" (check new emails manually).

Now my battery lasts me a day, although Safari is now a major power hog, even when I don't use it... And I cannot find a good workaround for that.

I must say it's shocking from Apple to release such a poorly tested [critical piece of] software. This is worse than the Map rollout. It would not have happened under Jobs.

Same thing, since iOS 8 my iPhone 5 battery drains whenever I'm at work where the signal is weak. Used to be fine

iPhone5S from Dutch 🙂

Same battery life problem here!!! I have a 10 months old 5s.

Apple, please immediately fix the problem!

Yep. I used to be able to go all day without charging. Now I am having to charge halfway through the day. Ever since Steve Jobs left, the company has gone to crap. Using cheap parts and phoning it in. It used to be worth paying more for Apple vs. PC, but my MacBook Pro only made it 6 months before the HD had to be replaced and the video card just killed it off for good.

Not cool, Apple.

Hope iOS 8.0.1 fixes this issue. It's already out, I'm downloading it now

I own an iPhone 5 and ever since i updated to IOS 8 my battery is dies within 2-4 hours even though i barely use it. I turned off location services for multiple items & handoff , etc & it still drains horribly fast, whereas before Ios 8 it would last nearly ALL day. Now i have to bring my charger with me everywhere.

Please fix ASAP as right now my phone isnt very useful. The one samsung commericlal about always needing to plug in is NOW true for me

My 5s is also draining way faster. Yesterday its battery usage meter said 6 hours 37 minutes of usage and 6 hours 37 minutes of standby (i.e., it wasn't sleeping at all) when I had barely used it. It lost 60% between 11:00am and 4:00pm when I had only checked it a few times. When I reset the phone the drain stopped, but come on. The improved (ie., reliable) battery life is 75% of the reason I switched to iPhone, and I will switch back if iOS updates are going to continue making the phone worse.

Same issues here with iphone 5. Also experiencing overheating. Any other users with overheating? I just noticed through a diagnostic app that my cpu usage is extremely high when idle 50 to 90%. In airplane mode, this resolves itself to between 5 and 12% when idle , which is normal. Once I switch off airplane mode, things remain normal with good cpu usage for a while. The problem seems to be wifi. No idea how to solve it though.

I Have an iPhone 5 but no overheating issues, just battery draining issues especially at work where it's a weak signal.

im glad this problem is persistent and is not just me. I and my girlfriend thought this was because my phone was just not getting great connection as I know 'fighting' for service can drain battery life.Unfortunately, despite doing multiple tests as apple states--I did the last of my tests which was switch cellular service off. Well, same problem.

Apple has had this problem multiple times with almost every major IOS update. I'm glad I am switching to the Note 4 once it goes on shelves. They create a new generation of iPhones and have a faulty problem to where it bends-- Cheap materials? (This happend to me when I first got my iPhone 5 then got it replaced due to this issue at that time ). I hope this is fixed.

Turning off cellular data doesn't do a thing on my iPhone. Drains battery like there's no tomorrow

Yesterday, my 5s battery drained very fast and the phone was unusually warm. i posted about the battery issue this morning.

Last night, I closed all apps when the battery was down to 6%. After doing a web search, I delved into settings and turned off location services, background app refresh, notifications and everything else that was suggested on various web sites, including various well-hidden features that I only found after basically looking at every single Thing in settings. That suited me fine because I'm not on twitter or Facebook and don't want to be tracked all the time. I the turned the phone off and plugged it in to recharge. When it turned itself back on, I turned it off again, leaving it plugged in. This morning it was at 100%. After 11 hours, it is still at 89% after a day of typical use (for me). In comparison, it didn't last the day yesterday.

I have no idea what's going on. I only hope it continues like this tomorrow.

I had the same issue with battery drain after updating to ios 8. I've gotten used to working on my IPad Mini while it's plugged in, so when I went to start working, I was suprised that throughout the day my battery had drained down to 16% while it had been plugged in! I turned off all recommended functions and nothing worked. Looked up solutions and they said do a soft reset, did that twice and it only worked for a few hours. Finaly I just turned it off and kept it off overnight and that seemed to do that trick, though it's been acting up again this morning. Plugged it in last night, woke up this morning and right off the bat the battery was down to 79%. Got it charged to 100% but now that I'm working again, the battery is down to 98% with it plugged in (I know 98% is not a bad number, but I'm not really trusting ios 8 at the moment). All told, this is unacceptible. There's no reason we should have to fiddle f art with our settings or jump through hoops in order to squeek out a battery life that would otherwise be laughable to other companies (i.e. Android).