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C DM

macrumors Sandy Bridge
Oct 17, 2011
51,392
19,461
Can't agree more...3 pages of performance based comments...almost none about battery which IS the topic. For me it seems battery life is a little worse than Beta 3 was. I'm burning through maybe 15% to 20% battery each of the last 2 days I've been running it with normal usage.
To be fair the topic includes both performance and battery. And for battery it will usually take at least a day or a few to get a decent reading on its overall average span.
 
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VSMacOne

macrumors 603
Oct 18, 2008
5,935
2,894
Battery not so great for me. Had to charge my iPad twice today. Oh well, not a biggie. But snappy seems much safarier, so I'll stay.
Did you try to Reset All Settings? My Air 2 is getting much better battery life than on beta 3.
 

latndude

macrumors member
Jul 26, 2012
85
15
Fort Myers,FL
Battery life is most definitely worst than B3, did not do much but checked Safari , played music , FB and What's up and usually by 5 in the afternoon I was at 65% with B3 , today I'm at 22% , yikes! Time to find a plug!!
 
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ZeChild

macrumors 6502
May 14, 2012
398
324
Glasgow, UK
Gotta say that after almost a day I've had terrible battery life at one point I was loosing 1% every couple of minutes. so bit the bullet and erased my iPhone and restored it using the IPSW for beta 4 through iTunes finished setting everything up again and the battery life has been exceptional. 2 hours in and its still @ 100%. Only downside is I had to reinstall all my apps and restore my Apple watch :mad:
 
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lmddawson

macrumors regular
Jun 14, 2011
229
168
Battery is great. The problem I have is nearly every app is unresponsive 50% of the time.
 

newellj

macrumors G3
Oct 15, 2014
8,154
3,047
East of Eden
Update again - battery life on Air 2 got poor even with all the usual suspects turned off. Battery life is way off both 8.4 and PB1 both idle and in use. Reset all settings with no improvement. Probably going back to 8.4 today. Should have stayed with PB1, which was very good.
 

DrBlueBox

macrumors 6502
Jun 8, 2015
338
212
Chatham
iPad Air 2:

Usage: 5 hours 56 minutes

Standby: 73 hours 19 minutes

Battery: 82%

Seems pretty good to me. Those 5 hours were mostly Netflix/light browsing and a bit of youtube.

Did Low Power Mode not make it over to the iPad? I can't see a way to enable it in settings
 

nathdogg

macrumors regular
Oct 7, 2011
223
4
iPhone 6

Low power mode activated at 20%

Not sure what FB messenger has been doing in the background for 22.5 hours, it hasn't caused any significant battery drain though.

ImageUploadedByTapatalk1437748602.989675.jpg


ImageUploadedByTapatalk1437748614.877027.jpg
 

BanterClaus

macrumors regular
Feb 19, 2011
195
25
UK
iPhone 5S from full to 1%:

Usage: 3hrs 17mins
Standby: 5hrs 10mins

So basically having to charge at least a couple of times a day right now.
 

Luis Mazza

macrumors regular
Jun 2, 2015
195
212
iPad Air 2:

Usage: 5 hours 56 minutes

Standby: 73 hours 19 minutes

Battery: 82%

Seems pretty good to me. Those 5 hours were mostly Netflix/light browsing and a bit of youtube.

Did Low Power Mode not make it over to the iPad? I can't see a way to enable it in settings

Yes, I did a hard reset of the Air 2 and battery is much better now.
It seems some people like me were having issues with updates over existing installations. No app was being obviously accused of being responsible, so probably that is related with iOS 9 kernel or something like that.

I think the deal is: if you have battery problems with b4, then the best to do is restart from scratch with zero backup restoration.

My iPhone 6 Plus is doing great and I did update it like the Air 2. I guess the multitasking's big changes are the suspects to blame on the iPad. It seems apps are running on the background when they should be frozen much faster as well.
 

bbfc

macrumors 68040
Oct 22, 2011
3,910
1,676
Newcastle, England.
I'm getting good battery life on my 6 but performance isn't great at all for me. This beta is definitely one of the worst for performance. Stuttering animations and delayed app launch.
 

lagwagon

Suspended
Oct 12, 2014
3,899
2,759
Calgary, Alberta, Canada
I gotta wonder if people who always see slow performance and whatnot are people who have a ton of installed apps, a bunch of extra 3rd party widgets and leaving every single app open in the app switcher.

I have not to many apps installed (26 and that includes all stock Apple apps), zero extra widgets from 3rd party, and keep my app switcher to only Safari, mail and messages (everything else typically gets closed fully because they aren't used often enough)

I have never seen bad performance on either my 5 or 6 in iOS 8 and 9
 

bbfc

macrumors 68040
Oct 22, 2011
3,910
1,676
Newcastle, England.
I gotta wonder if people who always see slow performance and whatnot are people who have a ton of installed apps, a bunch of extra 3rd party widgets and leaving every single app open in the app switcher.

I have not to many apps installed (26 and that includes all stock Apple apps), zero extra widgets from 3rd party, and keep my app switcher to only Safari, mail and messages (everything else typically gets closed fully because they aren't used often enough)

I have never seen bad performance on either my 5 or 6 in iOS 8 and 9
Does leaving apps open really make an impact on performance? I thought this was disproved a long time ago. The issue is that it's a beta build, so performance will vary build by build.
 

lagwagon

Suspended
Oct 12, 2014
3,899
2,759
Calgary, Alberta, Canada
Does leaving apps open really make an impact on performance? I thought this was disproved a long time ago. The issue is that it's a beta build, so performance will vary build by build.

The way I think of it is like any computer. The more apps you have and the more you're running will always give you a performance hit. (I've heard of people who have 300 apps on their phone. That's just overboard.) Take an older 2008 iMac will bog down after X amount of apps you leave running and don't fully close (command + q) a newer 2015 model will bog down eventually but will take more stuff running than the 2008.

It's not just beta though. Performance seems to be all over the place even in official releases of any update.
 

lagwagon

Suspended
Oct 12, 2014
3,899
2,759
Calgary, Alberta, Canada
The way I think of it is like any computer. The more apps you have and the more you're running will always give you a performance hit. (I've heard of people who have 300 apps on their phone. That's just overboard.) Take an older 2008 iMac will bog down after X amount of apps you leave running and don't fully close (command + q) a newer 2015 model will bog down eventually but will take more stuff running than the 2008. So more apps in background plus widgets running in your notification centre, to me just all add up and causes slow down.

It's not just beta though. Performance seems to be all over the place even in official releases of any update.
 

daijholt

macrumors 65816
Jun 14, 2013
1,113
343
Wales, UK
Yeah, I'm not noticing any drop in life so far at all (though it's really too soon to tell.). Guess it just depends on a lot of things?

My 6+ and iPad Mini 3 have been fully charged since I installed yesterday, and my usage today is about like it ever has been, and battery life seems to be at least on par to this point as it was since beta 2. And well beyond anything it's ever been in beta 1 or iOS 8 and below.
Third party apps make a massive difference it seems. Ive had amazing battery life from PB 1 & 2, but the minute I install Google Plus, my phone gets hotter than a furnace and loses nearly 2% battery per minute. Twitter may also be an offender, but I haven't been able to confirm that yet. They, & hangouts were the only 3 apps I installed before the last restore, and the sheer rapidity of the battery drain back then was inhuman.

Installed G+ today and suddenly the symptoms returned, then I delete it and reboot, and the phone is cool within minutes and battery back to normal.
 

Coupz

macrumors regular
Dec 24, 2013
200
20
The way I think of it is like any computer. The more apps you have and the more you're running will always give you a performance hit. (I've heard of people who have 300 apps on their phone. That's just overboard.) Take an older 2008 iMac will bog down after X amount of apps you leave running and don't fully close (command + q) a newer 2015 model will bog down eventually but will take more stuff running than the 2008.

It's not just beta though. Performance seems to be all over the place even in official releases of any update.
Newer had to close apps on iOS if they're not stuck. iOS freezes apps from app switcher which are not used after certain time. No need to close apps. Only thing you get is to load apps more often from the slower flash drive and then unload. iOS and OS X have awesome memory management.
 

bbfc

macrumors 68040
Oct 22, 2011
3,910
1,676
Newcastle, England.
Newer had to close apps on iOS if they're not stuck. iOS freezes apps from app switcher which are not used after certain time. No need to close apps. Only thing you get is to load apps more often from the slower flash drive and then unload. iOS and OS X have awesome memory management.
Doesn't closing apps and reopening them have an impact on battery life?
 

MrGuder

macrumors 68040
Nov 30, 2012
3,049
2,024
iPhone 6

Low power mode activated at 20%

Not sure what FB messenger has been doing in the background for 22.5 hours, it hasn't caused any significant battery drain though.

View attachment 570941

View attachment 570942
I all honesty your not using your phone much, not even an hr of web surfing no phone calls or FaceTime and 2 mins of video, most of your battery was for music so I'd expect that kind of usage.
 

lagwagon

Suspended
Oct 12, 2014
3,899
2,759
Calgary, Alberta, Canada
Newer had to close apps on iOS if they're not stuck. iOS freezes apps from app switcher which are not used after certain time. No need to close apps. Only thing you get is to load apps more often from the slower flash drive and then unload. iOS and OS X have awesome memory management.

I see no point to leaving apps in the switcher of you only use like once a day, every couple days or even once a week. I get that it uses more battery if you open and close that app often enough. But I'm sure there is a breakpoint of how long an app sits in the switcher vs closing that negates gains of leaving it in. Also some people see apps using ridiculous background usage in battery even when not used in a while, so I don't think things get fully "suspended" after X time.

I personally only leave safari, mail and messages in the switcher permanently because all three get used every day and many time throughout the day. Not once have I ever seen performance issues when lots of people claim there is (Especially in iOS 8)

More things running will always equal performance hit. Doesn't matter how efficient ram is. It doesn't just effect ram. It's CPU as well. (Which most of the performance comes from)
 
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