I've been reading this post for a bit, and I too am having these battery issues!!! Here is what I have done to date:
- originally set up my device from a backup from my iphone 4
- have completed 3 full charges (including trickle charge beyond 100%) and drain to 0% until phone shuts off - this did not work
- I have wiped the phone and set up as new, and downloaded my contacts and calendar from the cloud
- I have wifi turned off
- location services mostly all off
- maps, traffic, all off
- i have 3 email accounts set up and all of the push notifications and push email are off
The only draining utilities I have on are location services for Find My Phone, Siri, and Bluetooth because I use this in my car a lot. I just don't get it...my iphone 4 had the same types of things running (even more) and i did not have to futz around with it...looking for running processes, etc. The iphone is supposed to be EASY...i should not have these kinds of issues because i backed up from a restore of my iphone 4. I am currently sitting at 11% with 3hours, 29 min of usage and 16 hours, 17 minutes of standby. My co-worker's iphone 4s is sitting at about the same usage and standby, and they are at 77%!!!
I have called apple support and they said to wipe my phone and set up as new, which i did, and it did not work.
I have a genius bar appointment in 2 hours, but i feel that they are going to test the battery...it will be fine...and then offer me a new phone. What is the point of taking a new phone if this is an ios issue?
I guess my question is...what next? Like i said before...iphone SHOULD be easy...i should not have to be looking for hidden running processes...this is NOT MY JOB!! This is apple's job, and the reason we paid $800 for the phone. Do you all feel this is an ios issue that will be fixed in the next update? When do you think an update will be out if so? Do you think it is a defective battery? I have seen some posts where techs have contacted people with the issue asking if they can monitor the phone to see what is going on.
Sorry for the rant...just not sure what to do and tired of carrying around my charger because my phone won't last the day on a charge. Any suggestions?
I had this, dead inside of a day but just being in my pocket and the fix was easy.
Settings > iCloud > turn off passbook sync (useless unless you have another iPhone anyway)
Settings > iCloud > photo stream > turn off shared photostream (let's be honest, we're all just going to use Facebook)
That's it. Battery life is better than my iPhone 4 now.
It also takes about a week of charging for the battery to really get up to capacity.
iPhone 5 Battery Day 3 Battery Usage Test
Yesterday, I have run a lot of difference test after charge to 100%.
Always have local service on, iCloud, iTunes signin, email manually fetch, notification service on for the default apps. Brightness at 60%. Device has been reset to manufacture default for the 3rd time.
1. Leave the phone on stand by mode with Wi-Fi, battery drop 1%/2-3hours or even over night without 1% drop. That is amazing.
2. Using the phone on Wi-Fi network for watching youtube, checking email and surf web, battery drop 1%/7-10 minutes. Just awesome.
3. Using the phone on 3G network for same thing as 2nd test, battery drop 1%/2-3 minutes. There is the problem with 3G drain the battery.
4. Using the phone on 3G network with Hotspot on for same thing as 2nd test, battery drop 1%/2-3 minutes. No difference with 3rd test.
5. Using the phone on 3G network with Hotspot on and other device is using this Hotspot, battery drop 1%/2 minutes.
- Standby or using the phone with all functions on is good as advertising or even better.
- There might be an issue with 3G and Hotspot as 1%/2-3 minutes that mean around 3hrs30mins to 5hrs usage.
- Talk time: Up to 8 hours on 3G
- Standby time: Up to 225 hours
- Internet use: Up to 8 hours on 3G; up to 10 hours on Wi-Fi
- Video playback: Up to 10 hours
- Audio playback: Up to 40 hours
Already have an appointment with Apple care today at 11:11am to swap for another handset.
Seems not so great. Let's do some very rough math presuming you're supposed to get 8 hours of talk time or 225 hours of standby. We'll say, worst case senario, your 4+ usage hours were all talk time, leaving you 50% battery. That should give you 112.5 hours of standby minus your 16+ should leave you 96ish hours of standby time.
Probably not going to happen on your 15%...
My new Sprint Iphone has been suffering from high battery drain rate associated with the high usage time. Basically the Usage numbers were the same as the Standby numbers.
Went to Apple and they tried hard reset and device restore etc to no avail. Setting the phone back up one app at a time and tracking the usage while in standby I found that it was my exchange email account that was the issue. In Push mode it had the problem but if I switched to fetch the usage numbers and battery drain went to normal.
Apple Genius guy has offered to replace the phone but if I do that I can't return it to sprint if I decide not to stick with the iphone. Plus I am not sure this is a hardware issue it sounds more like software. One other point to ponder is that my boss has a 4S running Ios6 and his work email account works just fine in push mode, so perhaps it is hardware.
Thanks Mustang. I'm beginning to believe this more as the days progress, we shouldn't have to limit the phones potential.. The phone has been designed for all of these aplliciations to be used.. Fair enough, lengthen your battery life with dimming the screen somewhat and further settings. But alot of the efforts people are having to take to keep ot even a days charge are OTT..
I hope its fixed soon, a lot of people seem very inconvenienced by this, not to mention the huge dampner on receiving there new device, we should be singing its praises!
AFTER RECEIVING A REPLACEMENT PHONE FROM APPLE THIS AFTERNOON:
It appears SLIGHTLY better but that could be just me. Overall, much the same battery life I was getting with my initial 5 (MUCH MUCH worse than my 4s on iOS 5 ever got). at this point, I think it's safe to say it is a software issue with iOS 6 and not an issue with the phone.
so as much as it *****, I think time will tell. I think by the massive outpouring of posts in this forum all related to the same thing if a fix is possible from Apple it will come soon enough. Now that I have the peace of mind that it isn't the phone I can sit back and relax a little bit and pray for a software update soon!
I had the exact same issue.. After I swapped my iphone5 for a replacement due to a touch screen issue, I noticed that my replacement iPhone 5 ***** battery like theres no tomorrow with very minimal usage(like 100% before going to bed then down to 70% the next morning -.-;) I read from a random thread that an IOS reinstall fixes this issue for some and so I decided to give it a shot.. And surprise surprise it actually did.. My battery is holding up pretty good now :)