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iOS 9 battery life fix

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ItsGavinC

macrumors 6502
Original poster
Jun 29, 2007
458
277
applephanatic said:
Can confirm its working. My battery would drain 1 percent every 4 minutes if i was doing anything on it. (I.e Facebook, Twitter, light web browsing ) been using it for a few hours now and my battery is only down to 91 percent! Not a big deal as I didn't use either feature.
Click to expand...

Glad it's working for you. As I said, I found it posted last night. Did it today and my 6 has finished the day with 47% battery. On 8.4 I would end with 55-60% battery, but with beta 1 prior to doing this I was charging my phone twice during the day and still ending with 10-20%. This has made a VERY noticeable difference for me. Not perfect, but at least usable now.
 
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ItsGavinC

macrumors 6502
Original poster
Jun 29, 2007
458
277
ChaseSimon said:
I have an iPhone 6 running this beta...the tips you mention above did not work for me, I have all the searches turned off also and I am still having massive battery drain. I was just reading the news for literally about 5min and I lost 8% battery
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Interesting. I can't explain it. Works great for me and check out the post above yours. 46 minutes of standby and he is still at 100%. That did NOT happen for me prior to doing this, where I would lose basically a % every 2-3 minutes.
 
A

atwater

macrumors member
Jun 11, 2015
62
22
I have tried this and it's a little better on my iPhone 6. So far I am on 50%, usage is 2 hrs 22 min and Standby is 6 hrs 4 min.
 
G

greytux

macrumors member
Jun 17, 2014
45
15
I've had horrible battery life as well on my iPhone 6 since iOS 9 beta. It drained around 10-20% per hour even in standby mode.
I tried to debug it using XCode Intruments. I ditn't see anything special, except for a bit high backboardd CPU usage. Cellular data usage seemed to be the cause, as the battery life was great in flight mode.

Today I did a full DFU restore, restored my backup from iTunes and disabled iCloud Backup and iCloud drive. I think it fixed the issue! I've been listening to music for around 1 hour now with everything else enabled and I'm currently at 99%
 
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Tamagotchi

Tamagotchi

macrumors 6502
Jun 13, 2013
369
412
I had iCloud Back ups off (I always back up to my Mac), but iCloud Drive was on. I just disabled it and will reply in a couple of hours with any observations. Btw: iPhone 6 Plus
 
N

Napoleon da vinci

macrumors newbie
Jun 19, 2015
1
1
Kayseri
ItsGavinC said:
Got this from the developer forums, and it has worked for me. Battery is almost as good as it was for me in 8.4. Not quite the same, but that should be expected given the new features and beta 1.

Credit to user Atomic Flip in the developer forums who posted the following:

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"1. Completely disable iCloud Backups on each device running iOS 9 Beta 1 (Use iTunes to Backup and restore devices for now.)

2. Disable iClkoud drive (if you enabled it) on each device running Beta 1

There appears to be a SERIOUS problem with the API handling backups to iCloud or some sort of permissions issue with the data being written to iCloud. This likely went into effect during the update phase that indicated "iCloud data is being updated". (During the first Beta 1 load.)

This has confirmed to entirely resolve the "somewhat unpredictable" and extremely high rate of burn on the battery for this beta on iPhone 6, iPhone 6 Plus and iPadf Air 2. There is no reason to believe other affected devices will respond any differently to these changes, so we encourage other developers to try them asap. Apple should likely address this with the next update, when we can resume use of iCloud as normal during testing.

NOTE: iCloud data used by Third Party applications and other data like Calendar, Contacts and so on, does not appear to be causing any issues with battery usage, nor does there appear to be any data corruption. However do proceed with caution if you are using iCloud for your beta application development."
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As I said, this has worked wonders for me. Hopefully it will help some here as well.
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I have problem with iOS auto layout, I have tried several ways including any any button, however, it still does not render well on some iOS devices. What should I do? Any help will be appreciated, Thanks!
 
S

scottyy

macrumors member
Mar 24, 2015
56
7
Having the same battery drain problem.
Hopefully beta 2 will solve this problem and will release soon.

I will try turning everything off and go from there.
 
Tamagotchi

Tamagotchi

macrumors 6502
Jun 13, 2013
369
412
It's only been 2 hours since I tried this and I can already see a slight improvement. It's not dramatic but it certainly somewhat improved the battery live.

Hopefully DP2 next week will address this issue.
 
jredecop

jredecop

macrumors 6502a
May 20, 2009
604
15
Wonder if a clean install is key with this? Anyone have a clean install (no restore) with iCloud backup and drive turned off and BAD battery life?
 
Snapperjw

Snapperjw

macrumors 6502
Oct 8, 2007
341
295
Couldn't take it any longer. Battery life so poor on my iPhone 6+. Had to downgrade to 8.3 until this whole battery life bug is fixed.

I'm expecting beta 2 on Monday so fingers crossed this fixes the issue
 
Tamagotchi

Tamagotchi

macrumors 6502
Jun 13, 2013
369
412
I had to disable background app refresh and all apps and enable low power mode apart from switching off iCloud Back ups and iCloud Drive. Now the battery is back to what it used to be.
 
chekz0414

chekz0414

macrumors 6502a
Jul 3, 2011
770
99
FL
Tamagotchi said:
I had to disable background app refresh and all apps and enable low power mode apart from switching off iCloud Back ups and iCloud Drive. Now the battery is back to what it used to be.
Click to expand...

On iPhone 6 Plus? Does this mean you

- Turned off Search
- Turned off LTE
- Turned off Background app refresh
- Turned off iCloud Back Up and Drive only?
 
T

T4R06

macrumors 65816
Oct 8, 2007
1,212
74
CT
im on 8.4 beta 4 and did an update, the battery is draining like crazy so i went back to 8.4.

then this morning tried to perform a full restore via DFU mode then i took the backup via icloud. right after the backup i disabled both (backup and drive) then restart. i noticed no warm feeling now and i made a few calls and browse the web and still getting 100%. this is a good sign!
 
jredecop

jredecop

macrumors 6502a
May 20, 2009
604
15
T4R06 said:
im on 8.4 beta 4 and did an update, the battery is draining like crazy so i went back to 8.4.

then this morning tried to perform a full restore via DFU mode then i took the backup via icloud. right after the backup i disabled both (backup and drive) then restart. i noticed no warm feeling now and i made a few calls and browse the web and still getting 100%. this is a good sign!
Click to expand...
How's it now??
 
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