iOS 9 Beta battery life

Now I changed to "2g" to see what happens, and no "battery saving moded" enabled. I think it definitely have to do with the mobile data modes.. and something happening when enabled.. and maybe 3G/4G..

My Phone is connected to Wifi and mobile data is set to 2G. This is not really better in this case. Now the battery is by 72%.

Well, enabling mobile data and 2G and the battery starts to drain again.. I can clearly see a difference here now..

Try disabling mobile data completely and see if there's a difference for you too.

Well.. I now have the phone with with Autolock disabled so the display is on the whole time and Mobile data completely disabled and there's no drain on the battery. It runs well and it doesn't get got at all.. So yeah.. on at lest my phone it's definitely mobile data that is the issue behind the battery drain, wonder what it does differently to running on Wi-Fi, haven't even enabled battery saving mode either and still no drain 🙂

So all I have to do now is use my 4G mobile router instead and connect my iPhone to it when on the train to work 😝 And the battery will probably last all day without any issues.. 🙂

I've found that turning off everything in search in the settings area seems to help tremendously. I haven't had a chance to narrow down exactly which toggle is responsible for the drain, but I'm actually able to charge my device from a USB port now.

I am checking it out, have enabled 4G and will go through them one by one, start with disabling all and enable the Siri stuff. Might be something in there that uses the mobile data and somehow bugs out totally.. But I'll know soon enough 🙂 Thanks for the tip.

Hi.

I have the same issue 😟.

Paper app was consuming resources backgound, slightly better performance.

You check applications are running in background and location.

Good luck!

Mine is worse. I lost 35% in 2 hours 55 minutes. I tried to create a ticket but I couldnt get battery logs to add.

Exactly. Not all of us can fully test our apps while plugged into the wall.

I too have been experiencing the same very fast battery drain that you are all talking about. I have an iPhone 6 16GB. I just recently re-install iOS 9 right over my previous iOS 9. Since doing this my battery life experience has greatly improved. I can't exactly say that things are back to normal but very much better than before I re-updated. I did try re-installing iOS 8.3, restoring from backup and then upgrading to iOS 9. 1st and 2nd time same results, battery life out of control. Now that I just updated right on top of iOS 9 and things have greatly improved. If things change I will re-post. Good Luck!!!

Reposting this with more info:

When the beta came out yesterday, I did an upgrade and not a restore. Today I litterally watched the battery percentage drop 1 percent every two minutes while I only had the home screen active (background apps disabled, location services disabled, etc). I kept checking the Settings -> Battery page and it show "Home Screen" at 15% of the usage, which was completely wrong.

Today I did a complete restore and now things are better. The Settings -> Battery screen not only showed Photo App as the top user (I have over 8 gigs of phots and videos), but it also showed it as "Background Activity". I didn't see that before I did the complete restore. Now, Mail, Messages and Calendar also show that. I'm sure the battery will still drain faster than with a production version, but at least it seems like the reporting is working correctly and it allowed me to understand what was sucking the life out of my battery.

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As an update, I have an iPhone 6 64GB model on which I did the complete restore/iCloud restore. Currently,

• All Background Refresh is turned off
• All mail is set for Fetch
• All location services besides the Find My Phone are truned off
• Bluetooth is turned off
• I have spent 8 minutes on a phone call.

I think there are two things going on. The first is that the Battery statistics are not reporting correclty unless a complete reinstall is done. The second is that the WiFi is using a lot of battery life. I'll keep a running list as to what I'm doing to try and extend the battery lifeLog:

I then restored my iPhone 6 only. No restore, no location services, no email etc.

• 2:57 - 62% - Clean install of iOS 9 Beta 1
• 3:57 - 59% - Phone is lying face down. 190k of celular data. No applications reporting battery usage.
• 4:47 - 54% - Phone is lying face down. - 8% drain in almost 2 hours with nothing but the absolute basics.

So, it does indeed appear that there is a battery usage issue within the system itself. It seems any applicaiton on it will just exacerbate it.

I've noticed shocking heat whilst downloading apps - never done this before. Does literally feel like the phone is ready to go on fire!

What exactly do you mean with updated on top of iOS 9? Are you talking about installing the same Beta over an existing Beta?

Thanks for clarifying 😉.

Yes, that is exactly what I did.

im having the same issue, do you think its because of going from 8.4 beta 3 to ios 9 beta 1, i did this not knowing that they were releasing beta 4 the next day. would the battery be better if we went from 8.4 beta 4 to ios 9 beta 1?

That is a great question. I forgot to include in my write up that I when I restored, I used an iCloud backup from iOS beta 8.3. I did NOT use a restore from either a released version of iOS 8 nor did I restore from a backup after I had orignally upgraded to iOS 9. I don't know if that makes a difference or not. I chose to NOT backup my iPhone after I upgarded to the the iOS 9 beta becuase if I had to restore, I (1) didn't want to restore whatever error setting may have occured while playing with iOS 9 and I've tried to roll back in prior betas and found myself off a cliff (Wile E Coyote with the "yikes" sign) because it woudn't restore to a previous version.

I was having the same battery drain issues with the iPhone 5s. I installed the ios9 beta from a restore but noticed something was a little odd from the usual beta installs.

Results from install on iPhone: iPhone ios9 beta install went smoothly but battery usage was ridiculous. I've tried the turn off/on again, hard reset, etc. and still it was going do battery life like crazy. I figured it was doing it's indexing so I just left it plugged in overnight. I did run my iHome alarm app at night though. In the morning, I noticed that it was only at 80% charge after being plugged in all night! Killed the alarm app and topped off the phone before I left the house in the morning. By the afternoon, my battery was down to 30% after light usage and down 10% after sitting idle no apps running, etc. I am downgrading back to 8.3 since my development phone is my main phone. Downgrade is going smoothly.

Results from install on iPad mini (original): Restored ios9. Restored from my settings. I had several reboots (or crashes) during sync of apps on my iPad Mini. At one point, it appeared like my iPad was bricked showing only the Apple logo for a bit. Did several hard resets and it did not help. It would sit at the logo for at least 30 minutes! I put it in DFU mode and plugged it back into iTunes. For some reason it snapped out of its zombie state and finished syncing. Charged it up to 100% overnight and unplugged it in the morning. I did not use it all day until I got home and only for a little bit (Maybe 20 minutes total). Battery usage stats not showing but Facebook and Safari used 33% and 23% of the battery in the last 23 hours. The battery usage seems to be real good (84%)

Maybe the battery drainage issue is just isolated to the iPhones firmware and not affecting the other iDevices. Anyone else try this?

I've disabled all background app refreshes and the problem seems to have gone away. Please, someone, try this as well and see what happens. I've been surfing on battery for 20 minutes and it still is at 100%.

Also, I'm on 28 hours on this build. Don't know if the system need settling or not. (iPhone 6/64)

I had background refreshes disabled in 8.3 before I upgraded to 9 so it carried over when I did the restore. I didn't try enabling background refreshes and then disabling.

Yes. Same to my iPhone 6 + last night. Battery life drains from 100% to 70% around 6 hours....

Moreover, I cannot login citibank website either with safari or citibank app

Same on my side,
it is awsome that a beta version is as worse as this IOS9 Beta 1. With only less improvements the battery is empty in extremely shorten time. But battery is one of the important things at MOBILE phones. So I really do not know why Apple was doing this Beta 1 because it is much more a pre-Alpha. Same at OSX 10.11 with Mail. It crashes totally against Exchange accounts. Really worse. I think they are not ready and / or WWDC was too early. Hopefully we get an update during the next 2 weeks, otherwise I think battery is damadged.

After a few days on 9, it seems that brattery drainage is getting less worse. Battery usage still doesn't work.

cheers

emiel

Last night i set the iPhone 6 to Airplane Mode instead of DND.
7 hours Airplane Mode -> after wake up still 100% battery.
deaktivated airplane mode and only read the answers here (13 eMails). Battery 95% in less than 10 minutes.

poor battery life depends definitely with network activities together.

only deactivate mobile data has no effect on my phone.