iOS 9 Beta battery life

Yah Why does my battery go from 100% to 0% in 5 hours and only 2 hours of use?

This is because most betas are not optimized for battery life. They are optimized to capture debugging logs and have the CPU cranked. You should never install it on a personal phone. I've learned about this all too well. You're better off downgrading to IOS 8.3 and just use the simulator.

The absurd battery consumption let this one the worst beta I ever installed. It is a beta, but still remains simply ridiculous.

Fortunately for them the device used during the keynote was plugged somewhere, or simulated...

I Think that Apple, same as other producers, must definitely eliminate from their goals the record of the "thinner phone" installing a BIGGER and more decent battery into any device.

Same here, 30% lost with NO wifi, 3G, and in App Battery usage statistics, is Stocks (50%) in Background but... Background task is unactivated on my phone

If any little workaround is find, just tell !

My iPhone 6 is losing battery and getting hot. This will be a big issue if not fixed.

Also homescreen has been 93% of usage

I'd put it down to the phone doing lots of stuff in the background like indexing things for the new search and Siri functions for now. This is always the case after a major update on OSX for me and given the changes in iOS this time around, I'd put it down to the same thing.

Give it a day or so, then see how the battery is coping.

I also had battery drain, every 3 minutes one per cent. I re-installed ios 9 beta again and now iphone 6 & 6+ work again with no power loss at all. Re-installing on iPad Air 2 now. Will check it.

(BTW, I had to re-install it 2 times on iphone 6 but it's woth it)

Yeah. That is also happening with me.

I never experienced so much battery drain in a iOS beta version.

Same here! I was using my phone as Normal in the car and the sunlight caused it to be really hot. I came home and let it sit and once I picked it up to use again, it got extremely hot at around the top of the screen area.

Yes my battery life on my iPhone 6 is terrible on iOS 9. As another person said it is mostly from the home/lock screen.

This is normal for betas. It will be resolved in the final version.

horrible battery life

Same exact issue. I will try to do a factory restore, then a icloud restore to see if it fixes the issue with it only showing home screen and siri as what is killing my battery life. Won't show any other apps that I used throughout the day today and I am down to 11% right now where I am usually at 65 or 70% on my iphone 67 plus at this time of day.

The phone is probably still indexing. Give it some hours before getting in panic mode 😉

I'm not sure if this is happening for everyone else but I filed a bug report on it. I had done a restore to put iOS 9 on and lost about 30% batter in standby. Home/Lock Screen took about 50% of the power, but Facebook was #2 for "background activity" even though I have backround app refresh disabled on Facebbook. This might be a possible case of the OS ignoring the BAR settings on some very hungry apps.

Have you ever done a iOS beta before? These are very much to be expected.

1. The claims they make will be what they are expecting for the final release

2. iOS 6 beta was significantly worse.

3. If you think this is bad... just wait, in the past the betas have gone from bad battery life to good, to bad again. They are working out the issues, you cannot expect this to work like a final product... because well, it is far from it.

Yea this is also happening to me but it happens in most betas and will be mostly fixed in official release

The main cause for this terrible battery drain is a background app refresh - even if you turned it off it does operate (also you can see it in the Battery statistics)
Just try to turn it on and off and check a result.

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and now I'm restoring to ios 8.4

This is what I'm interested in. From a technical standpoint what causes battery life to be reduced during beta releases? The UI seems a little snappier as well as app switching and just general performance on my 6. I am also seeing the battery drain issue as per normal beta performance. Just interested in why. Obviously optimisation is key but is the OS collecting data on performance for Apple techs to analyse? And how much optimisation will apps need to do upon public release? I am finding software development more fascinating all the time :)

i am on an ipad mini 3 and so far no issue with battery, charged it over night, its now 13:30 and i have used it for a few hours this morning, including a facetime call to my wife and its still at 85%.

talking of facetime, i did notice that the video keeps freezing on that

Hi All.

Putting my iPhone 6+ AND iPad Air 2 in Airplane Mode stops the battery drain. Something to do with the radios running full power when leaving the phone after a period of use.

Toggling Airplane Mode On/OFF seems to have the same effect.

Suggestion: Habitually toggle Airplane Mode when you are done fiddling with your iDevice, before putting it to sleep.

Best regards...

Same on my side

Battery runs out in amazing speed - from 32% to 23% in 15 min without any app open. We could not imagine it yesterday.
Normally I use my Iphone6 whole the day with 30% to 40% full at night - yesterday I had 32% at noon - and I did NO CALL and had no time for tests during business time. And the phone got warm also - same as Beta 1 of IOS8

Battery statistic says that the HOME AND LOCK SCREEN is 26%, Mail 21%, Telephone 16% ....

Same for me, seems a lot worse than previous betas. Interestingly, it listed BBM (in the background) as a culprit for me, so perhaps it's a change to background APIs.

Yes I'm seeing the same... less than 4 hours and I'm down to 17% battery remaining... battery usuage doesn't show anything interesting... podcast 1.5h in the background is the top hitter.

I think it's to do with icloud.... I keep getting sync and connection errors when talking with the cloud.