IOS 9.2 Rapid Battery Drain Issue

Same issue here except that it did not stop EVEN when putting the device in RECOVERY MODE and setting up as a new iphone (not even restoring backup). Tried absolutely EVERYTHING but then I had to take the phone in and got a replacement. Now, 2 months after they changed my phone, I'm starting to have the same symptoms. This is my issue:

1. Phone starts getting hot out of the blue.

2. Phone does not charge on 1A charger (shows charging, but does not go up)

3. Phone BARELY charges on 2A charger (ipad charger).

4. On 2 A charger takes 7-8 hours to fully charge and no more than 3 disconnected to FULLY DRAIN.

The phone has no more than 2 months of use, this makes no sense at all.

I have a slight suspicion that it has to do with the mail app and an exchange account set to push or fetch info to the phone. As I deleted my exchange account today and the issue appears to have cleared (at least for the moment)

Exchange in the Mail app is a phone killer. It drains the battery VERY quickly.

I never solved the issue, Apple ended-up replacing my phone; I re-installed all my apps from my latest full backup once I got the new phone. Everything is fine now; battery back to normal. Clearly it was not the apps that were installed (since I put them all back in); and they say that the Battery tested almost new.... so not the battery either. Hope they figure it out; because all that homework they made me do didn't work and it is obviously not an isolated incident.

Good luck to all.

Hello guys,

I want to ask you for your opinion if somebody knows what to do about this. After I updated my iphone 4s to IOS 9.2, my problems started. The battery was draining so fast, but I have another problem too. When I put my phone to charge it goes to to 26%, 32%, 36% never goes up to 100%. It can be like 24 hours on the charger but it goes only do 30% and then it stills shows up in the right corner, it recognises the charger but it won't charge above 30-35%. I did a soft reset, nothing changed. I did a hard reset then, I didn't do back up, I set it like a new iphone and nothing change, it went to worse. Now my iphone after the reset when I connect it to charger it shows the signal up in the right corner that is on charger but it won't charge. It stays on charger but the battery doesn't go up and it won't charge. I tried with usb on the laptop, it's the same, it's connected to iTunes and it has the sign that the phone is on charger, but it won't charge it just stays like this. I don't have the explanation of this problem and honestly i'm dissapointed about this. My iphone gone to 0% it turned off and now I can't even turn it on. When I put him on charger it shows that it is starting to charge but it's never turning on, it just stays like that. I wonder what to do next, i don't have the explanation. Did my battery died? And I wonder how it can be possible cause 1 day ago it was charging to 30-35%, now it won't charge. If anyone can help or share something about this, please help I need my phone back on 😟

Thanks in advance

'

Sounds like the battery has failed. Take it to an Apple store for evaluation.

Well I'm from Macedonia, we don't have an official Apple store in Macedonia. This iphone is a gift from my cousin. He bought it in America. I must try in some private mobile stores to see what will happen. But all this is happening when I updated to 9.2, and also it's weird when I connect it to a charger it says that he is charging (but actually it's not). If the battery died, I think that he won't show signs of charging. I don't know honestly, but I'm without a phone now and it's pretty annoying. I must figure out what to do 😟

blasfromJP wrote:

I never solved the issue, Apple ended-up replacing my phone; I re-installed all my apps from my latest full backup once I got the new phone. Everything is fine now; battery back to normal. Clearly it was not the apps that were installed (since I put them all back in); and they say that the Battery tested almost new.... so not the battery either. Hope they figure it out; because all that homework they made me do didn't work and it is obviously not an isolated incident.

Good luck to all.

The 'homework' they have you do usually resolves most issues. While it's not an 'isolated' incident, it's very rare.

Yes, the oddest thing happened to my phone last night and it may have something to do with the Mail app.

I've had Safari & Mail turneed off from Cellular since Dec 20th and that seemed to resolve the problem but on Friday I was out and needed to check mail so I turned cellular back on for mail and left it on.

Friday night and Saturday it appeared ok. Saturday afternoon I fully charged the phone but it was dead by Sunday morning. I charged it back up and turned cellular off for the phone and it appears fine again. Regardless of cellular being off or on, I have push notifications turned off. I have to manually check mail. It looks quite likely to me that something is wrong with the mail app.

I hope that helps someone.

Andrew

Has anyone come up with a solution?

my problem is app Store running in the background and draining. My phone will overheat and be dead in 3 hours

This happened to me 2 months ago. I ended up backing up my phone and reinstalling the IOS and then reinstalling all my apps.

Worked fine again for a couple of months.

Now its happening again!! Phone overheating and the app store draining battery in the background.

All settings for the app store are off.

Do i really have to reinstall IOS again???

ago

Go to Settings/iTunes & App Store. Turn off Automatic updates. You can also try logging out of iTunes & App Store. Then reboot the phone and log back in.

APPLE IS NOT ANYMORE THE COMPANY IT USED TO BE. SELLS CRAP HARDWARE WITH IOS THAT IS GETTING WORSE WITH EVERY RELEASE. BOTH IPHONES I HAVE (4S) DRAIN THEIR BATTERIES WITHIN FEW HOURS. TRIED ALL THE GIMMICKS - ERASE AND OPERATED IT WITH NO APPS AND COMPLETELY NEW USER PROFILE TO BE SURE IT'S USELESS, EVEN WENT TO THE EXPENSE OF REPLACING THE BATTERY WITH NEW ONE ******** AGAIN. APPLE BETTER FIX THIS ISSUE !!!!!!! ENOUGH IS ENOUGH

I have a 5S and this is what my battery usage looks like. This is the second time battery level has gone to zero (phone won't start. reboots after 10 minutes on charger) since I update to 9.2.1 last week.

I had no serious battery issues before 9.2.1.

Before the battery drained. I had not used my phone -AT ALL-- since the last full charge. note 100% of battery usage is attributed to messages background activity

85% of battery usage over past 6 days has same cause.

I've read your responses and found them quite helpful, though it seems that people persist in missing what I think is one of your central points. That is, the charge-life problems most people face are NOT due to hardware or iOS problems, per se. Instead, the problems appeared when people upgrade the OS because some app misbehaves under the newly-installed iOS version. (whether that's iOS4 or 9.2 or whatever.)

I assume you are correct, but before I go through the long process of backing up, clearing all installed stuff, then restoring everything from the backup, I would like to understand one additional thing. Specifically, if the problem is with an installed (presumably non-Apple) app, would the problem occur if the app is never started but Background App Refresh is enabled? What about if the app is never started and BAR is disabled?

In other words, could an app's corrupt configuration even have this impact if it is neither started nor refreshed in the background?

Based on the way the battery now drains flat in less than an hour of use of my app that tracks my running in my iPhone 5 under iOS 9.2.1, compared to having at least 25% left after a longer run, it seems that charge-life is down more than 30%.

Any app that has Notifications enabled will start when a notification is received, whether you have started it or not. And also whether background app refresh is enabled or not. So, yes, an app with a problem can cause battery drain even if you haven't started it and it doesn't show on the quick-launch screen. Also, don't count out built in apps; I've had problems with iCloud Contacts and iCloud Calendar using energy (and data). You can usually identify the app in Settings/Battery.

I have basically this exact problem too.. Staring a few days ago, Messages accounts for 3+ hours of background activity, and is effectively draining my battery. I cannot delete/reinstall this app. Is there another solution, short of wiping the phone, reinstalling everything, etc?