Q: iOS 6 iPhone 4s battery drain

I too was facing issue with battery drainage after I had upgraded my iphone 4 to ios 6 on Wednesday night. It had lost 50 % in 3.5 hrs in standby and bit of activity.

However after coming through the post I did Reset Settings and allowed battery to fully drain out and did a full charge. The standby time has increased and now the battery drainage is as expected. It has been 8 hrs and it has lost 25% with probably activity upto 1 hr. Location services 3G and notications are on.

So thats good news from my end.

However need to check how it affects when I continously do activity on iphone.

Never knew about this function, I'm so glad I joined the support group. Thanks!!

Reduced battery life in my iPhone 4 too. 8 hours and down to 27% - could be worse though.

A year ago I had the same problem with iOS 5. Then I switched off photostream and it helped.

I have used the photostream after updates during this summer, and battery life has been fine.

There are now new apps like facetime integration and shared photostream that may be the cause.

Try switching those new things (that came along iOS 6) off, you may find the cause.

Hi John,

No problem, Glad to hear that it worked for you.

Its not just the iPhone 4S, I have the 4 and my battery was at 25% this morning. I charged it last night and it was at 100% around 10 pm.

I normally wake up with the phone in the high 90% range.

So its not a Siri issue. It must be a problem with a component that both phones share.

One other thing, I notice that the phone is saying it is charging MUCH faster than it use to.

I finally solved my battery drain problem by deleting the new facebook integration. My battery would drain overnight and the phone would be really warm all day long.

I monitored the iphone's activity by using the Iphone Config Utility found on apple's website. I watch the console as the errors would pile up. Something kept crashing and restarting, crashing and restarting. By trial and error I figured out it was the facebook integration.

I reset my iphone, then did a restore from backup and battery seems to be at or above than before the update to iOS 6. I will continue to check.

Did you turn off fb integration completely or just disable certain features? I find the calendar fb integration useful, but if I recover ym battery life, which normally drains 5% when left overnight after a full charge or less, I'll turn it off.

A second weigh-in for me. I have read many of the posts and this problem is very wide-spread. Check out ther other threads or Twitter. The battery drain issue is huge. Here are the things I suspected:

• iTunes match having startup pains in IOS6
• Facebook integration
• a bug or bugs in the new IOS6
• the new map/navagation software
• SIRI
• notifications on drugs

I have had serious problems with my iPad 3 and my iPhone 4S. Both had battery drain issues, but my iPad seemed to have issues with iTunes match and somehow my videos were lost in the update and I can't seem to sync any back on to the ipad. I now have the iPad working for the most part and after a full restore from iCloud (very tedious) it seems to be working, but my videos are not there and I have not tried syncing to iTunes to load more up - that's where the problems began with the new IOS6.

As for the iPhone 4S the battery drain has been unbelievable. There are many posts on turing off notifications, turning off Safari bookmark syncing in iCloud and a host of other ideas around the idea of turning things off. However the funniest one was I turned everything off except I haven't tried it in Airplane mode. I can confirm that turing your phone completely off does save battery power for the record.

Conclusions:

• I think IOS6 is very buggy;
• iTunes match may have been a factor that seems to be settling down on my iPhone and iPad;
• I am not familiar enough with the new Facebook integration to understand how it connects with battery drain, but I still suspect it;
• I am also inclined to view the new map software very suspciously (without pedestrian or cycling support) since all GPS related apps are nasty on battery life from the get go;
• I don't think SIRI is the issue, although others seem to feel it's implcated in the great battery drain pain;
• And I do think notifications are going crazy and this involves a lot of activity and battery power.

I think it is settling down a bit, but that there is definately a system level issue going on here. Not everybody is effected, but most are.

This is day 2 and after 3.5 hours into my day my iphone is at 52% – that's terrible, but better than yesterday. I am looking forward to hearing about: 1. the top 5 battery drain issues to manage and 2) an udate that manages this battery drain nightmare.

I would like to know what FB functionality was turned off as well. Details please.

Hi Slavik6 - how did you turn off the facebook integration? I want to try it.

It did in iOS 5, but I think it was once every few days or something.  iOS 6 seems to be more real time or at least every few hours.

Everyone should hear this.

I have never used Facebook and t is not on as far as I can tell, but I am bleeding battery energy.  I have done the reset and have set all setting as recommended and I now want iOS% back!

Can anyone tell me how to go back to iOS5?

dr_lynch wrote:

 

Everyone should hear this.

 

I have never used Facebook and t is not on as far as I can tell, but I am bleeding battery energy.  I have done the reset and have set all setting as recommended and I now want iOS% back!

 

Can anyone tell me how to go back to iOS5?

You can't.