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iOS 8 GM battery life

bkends35 said:
I never force close an app unless it's acting up, iOS is extremely smart as freezing apps when not it use.
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I never kill apps from the switcher either, though certain apps with VoIP capabilities are still allowed to run in the background for up to ten minutes, which was part of Ryan Petrich's reasoning behind SmartClose. There's numerous posts and before/after effects shown on battery life all throughout the jailbreak subreddit.

But I digress, yes, true battery saving jailbreak tweaks are very, very few and far between. To be honest, the only other one I can think of is the Activator trick by disabling cellular data when on a Wi-Fi network.
 
saxon48 said:
I never kill apps from the switcher either, though certain apps with VoIP capabilities are still allowed to run in the background for up to ten minutes, which was part of Ryan Petrich's reasoning behind SmartClose. There's numerous posts and before/after effects shown on battery life all throughout the jailbreak subreddit.

But I digress, yes, true battery saving jailbreak tweaks are very, very few and far between. To be honest, the only other one I can think of is the Activator trick by disabling cellular data when on a Wi-Fi network.
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Actually a lot of apps can run in the background for a bit (up to 10 minutes or so), while some like VoIP or navigation can do it for longer/indefinitely.
 
I have always felt that I've been on the wrong of side of the poor battery issues over the years as I like to use my iPhone as I see fit and that means using data over 3G/LTE when I'm away from a wifi network.

Whenever a GM is made available I always download it, RESTORE my iPhone and set it up as a new phone.

I set it up as a new phone then go to settings>general>reset>Erase all content and settings.

GM's always see to work fine and I've very happy with iOS 8 GM on my iPhone 5.

Just my tuppence worth. Try it!
 
As good or better on iPhone 5s.

iOS 8 has the ability to show you primary offenders of battery drain.

iOS 8 may be final, but not one single 3rd party app runs perfectly on it...and some drastically need to be updated to restore functionality, patch memory leaks, and prevent dangerous battery drain and/or data consumption.
 
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not sure if its been said already, but try disabling spotlight suggestions in location services, on my a1428 iphone 5 only that service is always on 99% of the time even when not using spotlight, even when at lock screen
 
So I can now say that it (for me) 100% is the mail app that causes battery drain for me.

I disabled the sync and fetch completely, also closed the mail app.

Then installed the official gmail app, which also has fetch and after running with that for a good 5 hours, my battery has dropped 1-2% which is normal and in the usage it says mail app used the same as when I stopped it (aka not using anything anymore) and the gmail app used 1% (compared to the 15% after 20mins the mail app used this morning).

Anyway I hope they fix this for official release because its really iffy.
 
Safari

For me Safari is killing my battery, around 30%. When I use the browser my iphone gets hot and my battery drains. And Im using wifi!

Horrible!
 
I actually am downgrading because of the horrible battery life issues I'm having. I'm not sure what the culprit is but my battery is dying mid-day where I was making it all the way until the end of the day with some cushion before.

As well, my phone was actually draining while I was charging it in my car while using it. It wouldn't even charge while I was streaming over bluetooth while plugged in. Very strange.

My phone is reporting that I've been using it for 90% of the time it's been unplugged but I haven't and I've closed every app and rebooted and still it acts like this. I'll just downgrade and wait it out.
 
DeathChill said:
I actually am downgrading because of the horrible battery life issues I'm having. I'm not sure what the culprit is but my battery is dying mid-day where I was making it all the way until the end of the day with some cushion before.

As well, my phone was actually draining while I was charging it in my car while using it. It wouldn't even charge while I was streaming over bluetooth while plugged in. Very strange.

My phone is reporting that I've been using it for 90% of the time it's been unplugged but I haven't and I've closed every app and rebooted and still it acts like this. I'll just downgrade and wait it out.
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Try reinstalling and setting up as new. Also, check the battery status in settings, and see what your installed apps are doing. You may have an app that is hanging up.
 
My iPhone 5 got absolutely hammered today on iOS 8 GM.

And no, I'm not joining the 'latest iOS has awful battery life' bandwagon.

I was actually pleasantly surprised on Wednesday and Thursday that my battery life didn't appear to be too different at all from pre-upgrade.

Today though, I left home at 8:30AM, arrived at campus at 8:50 - 10% gone already. By 1PM I was down to 60%, even when using campus Wi-Fi instead of 3G/LTE. That sucked.

Then I plugged in and juiced up to 100% and unplugged at 2PM. By 7PM I was down to 70%. Not awful, but not great with minimal usage too.

Got on a train at 7:10, still 70% - got off the train at 7:45 and it was down to 45%. The signal strength on certain parts of my commute is not great but it is nowhere near bad enough that is should cause a 25% drop in just over half an hour. Sometimes the battery percentage meter even dropped by 2% at a time.

Not really impressed by today's experience. Battery seems to hold on a bit longer on my home Wi-Fi at the moment. Hopefully it's just something minor that 8.0.1 or something will fix.
 
BasicGreatGuy said:
Try reinstalling and setting up as new. Also, check the battery status in settings, and see what your installed apps are doing. You may have an app that is hanging up.
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Yeah I did that. Restored and did everything brand new and same issue. Battery claimed Safari was doing most of the draining but the phone wasn't even being used.
 
My battery life was excellent (slightly better than iOS 7.1.2) on all 3 devices. But glitches and crashes forced me to downgrade.
 
I'm getting much better battery life than I was on previous builds and iOS 7 (iPhone 5C).

Current set up is: Background app refresh enabled on all apps, medium brightness, wifi and 3G, no bluetooth. Various apps open (usually FB, instagram, Mail, Safari, Digg),default location services.

I take it out of the charger at 8am and it usually just sits on my desk all day checking for emails every 15 mins. By the time I get home at 5pm I have about 75% battery life left which I consider to be pretty good. My biggest battery drain is low signal, which is shocking where I live. My phone wastes most of it's energy searching for a signal.

On the same set up on iOS 7 my phone had switched itself off by the time I got home.

Really bizarre how so many peoples experiences differ when essentially we're all using the same hardware.
 
Mabus51 said:
I recharged my phone to 100% and reset my network settings from Settings>General>Reset then cold booted the phone.

background apps = off
Location services = off
Low brightness
Bluetooth off
Wifi off
Reduce Motion on

Spent 3 minutes logging in and typing this. Lost 8% battery life. Something isn't right. I did a clean install no backup. Synced only my contacts. :/
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You probably need a new battery. Take it in to an Apple Store.
 
Hi guys, im new in this forum but i keep coming here from time to time. This time i really need advice.

I have an iPhone 5s 32 GB and battery were doing ok, i got 20 hours stanby and 7-9 of usage. A few days ago battery life is getting ugly, i think because of facebook app and messenger app but im not completely sure.

Yesterday i installed ios 8 GM and battery is ugly as well. Here you have a capture. I need to know if this is normal or if it is extrange and how could i fix it.

Im from Argentina (excuse my poor english) so here there are not official Apple store to send the iphone for check

I would apreciate any help

Thanks in advance
 

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I think the battery meter is weird.. My iPod was on 55% for a long time and then dropped to 31% all of a sudden.

iPhone was good for a bit.. (was at 100-95 for a decent amount of time) and drained to 43 quite quickly and now stuck on 43. I'll do another calibration but who knows if that'll fix it
 
maxuelll said:
Hi guys, im new in this forum but i keep coming here from time to time. This time i really need advice.

I have an iPhone 5s 32 GB and battery were doing ok, i got 20 hours stanby and 7-9 of usage. A few days ago battery life is getting ugly, i think because of facebook app and messenger app but im not completely sure.

Yesterday i installed ios 8 GM and battery is ugly as well. Here you have a capture. I need to know if this is normal or if it is extrange and how could i fix it.

Im from Argentina (excuse my poor english) so here there are not official Apple store to send the iphone for check

I would apreciate any help

Thanks in advance
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More than likely, some app(s) that you have loaded and haven't been optimized for iOS 8 by the developer could be draining your battery more so than normal. At this point, I would not be worried about it, as iOS 8 has not been released and most apps have not been updated yet. Give it a little bit of time.
 
Seems ok to me

Mabus51 said:
Nope, downgraded back to iOS 7 and my battery life is back. It's a bug in the iOS 8 GM for iPhone 5s
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To me the battery life seems ok, I have not experienced a significant difference between the Two OSs. Did you do a straight update or restore? I did a Restore then iCloud backup which seems to be running well. But like others have posted iOS8 seems to be a little buggy when it comes to compatibility with third party Apps so it could be a memory leak\CPU process getting hung up causing the battery life drain. I would try doing a complete wipe check the battery life then slowly add your apps back.
 
maxuelll said:
Hi guys, im new in this forum but i keep coming here from time to time. This time i really need advice.

I have an iPhone 5s 32 GB and battery were doing ok, i got 20 hours stanby and 7-9 of usage. A few days ago battery life is getting ugly, i think because of facebook app and messenger app but im not completely sure.

Yesterday i installed ios 8 GM and battery is ugly as well. Here you have a capture. I need to know if this is normal or if it is extrange and how could i fix it.

Im from Argentina (excuse my poor english) so here there are not official Apple store to send the iphone for check

I would apreciate any help

Thanks in advance
Click to expand...

Now finally everyone will see how much facebook drains your battery! :)
 
doublex14 said:
Should I wipe my device, then restore to a backup? Before I was on the GM I had 7.1.2
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I am not confident about this anymore actually - my 5s has been behaving veeeeeeery strangely on GM. This is what has started to happen:

After a full charge, I can leave the phone unused for 5-6 hrs and I will see maybe a 2 or 3% drop in charge. The minute I start using the phone for basic stuff such as browsing, whatsapp, non-intensive games like wordbase and letterpress etc., i will see the battery start to drop almost 1% every few minutes, sometimes it will drop 2% at a time. If I stop using the phone, it will go back to near-zero drop in battery, for hours in standby.

Too rapid a drop in battery with light use, and virtually no drop in standby.

I am absolutely flabbergasted.:confused:

Anyone see this happen? Any ideas whats going on?
 
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