Q: ios 9 update battery drain problem

Well, an iPhone is NEVER doing nothing. There are always processes running on it. The only real test is to restore iOS on the phone, set up the phone as a New phone, do not install any apps, do not log in to iCloud, do not create any email accounts. Then check the battery life. If it is still draining faster than about 1% per hour with the screen off then your battery is defective. As you replaced the battery yourself this is a high probability; the actual batteries that Apple installs are custom made for Apple, and can't be bought from any source as Apple does not sell them. So any battery you buy is a crapshoot; it may be salvaged from another iPhone, or it may be an aftermarket manufacture of unknown quality. And, as you opened the phone, Apple will not provide any hardware support for the phone.

Any software that you used that claims to give statistics about the battery is also suspect; there are none that provide accurate information, be it one of the battery doctor type apps from the app store or PC/Mac based apps such as ibackupbot.

I Read the other guy did the same thing as you were saying, fresh install with no icloud. I'm going to do that tonight as a last attempt. I did not take it to apple for the battery because I paid $115 for the used phone. For what apple would charge I'd be at about the same price a buying a new phone, which is what i

I should have done at this point.

Hi Chris,

there's no solution.

My iPhone had the same problem.

Apple change my iPhone 5S and now i have two days battery with normal use.

It isn't problem of battery. It's the phone with iOS 9. With some models, that mysteriously drain too fast the battery when update to iOS 9.

Not listen to Lawrence, he doesn't realize that is not a problem of the battery.

The only solution will change the iPhone if it's in warranty. They are many people with the problem..

Claim to Apple despite being out of warranty

Cheers and good luck

The only thing I can say for certain is the original apple battery was going dead faster than the replacement. Also, the original battery ran fine for a few days before I cleared the prior owners info and reloaded the phone as new.....and it received the IOS9 update. I'm working on reloading it again and leaving the icloud stuff off. I don't think it will fix it as I never loaded any apps on it before and the only thing it got was the contact list from my old 3GS's Itunes saved file. I added email to it the first time but last night all it had was the icloud address added.

This is my last try and then I'm ditching the phone for what likely will be a loss.

Ok, reloaded last night without Icloud or anything else in the phone. Set up as new phone, empty of everything. Shut everything off other than the WiFi and then charged it up to 100%. Took the phone off charge at 8:40 PM last night and at 5:50AM it was down to 48%.

The end.

I'm anxious to find out if this method was successful for CrawlerChris as it was for me.  My battery was draining in 24 hours on standby.  I now get around 100 hours of standby time, as it should be.

That's a sweet hat Lawrence.

Cheers

The same thing happened to me .

These tests and I did and I had no result.

There is no solution for the moment for the battery draining in standby, neither Apple know what the solution.

it seems that Apple wants us to buy a new iPhone because it's very rare problem

Well there's my answer.  That's depressing.

I'm running one last test on this thing. I'm charging it up fully again and then turning it off. If it chews the battery while off, well.......I don't see it possible unless the battery has an issue or somehow the mainboard draws power while it is off.

Ok, I charged it and then let it sit overnight with it turned off. Went from 100% charge to 60% at 6AM. Got any clues?

Take it to an Apple store and have them test the battery. Just to be sure, when you say you "turned it off" you held the POWER button until the screen displayed "slide to power off" and you did so?

Yes, I powered it off with the slide. I turned it back off after turning it on. 2 hours later I turned it back on and it was down to 48%. I left it running after that and 2 hours ten minutes later, it is now at 30%. So it loses charge about the same rate if on or off.

Hallo everybody!

Mine (wife's actually) is being replaced by Apple....

My situation is as follows.

1) Never had any battery issues (iPhone 5s) until upgrading to iOS9.

2) Since the upgrade my battery drains in around half a day with limited usage.

3) App battery usage Top 5 in last 7 days (in order) Mail, Podcasts, Home & Lock Screen, Safari, Messages (all native iOS Apps) - accounts for 65% of all usage, indicting it is not an external App problem.

4) Have always taken care of my battery - never overcharging or letting battery run down too low. This coupled with descriptions of other people's experience indicate that it is not a physical battery problem.

5) Have no Exchange account linked to mail.

6) Girlfriend's iPhone 5c also has erratic and extreme battery drain since upgrading.

I think your refusal to acknowledge that this might have anything to do with iOS9 is utterly ridiculous to be honest. I've tried several of the purported solutions and none have worked. And sure, we could all backup, fresh install, manually add apps back, upload music/photos again etc.etc. to try and fix this. But we really shouldn't have to should we. I'm sure a lot of people don't have the time either. It should just work without drastically deteriorating the battery of many users. Like every other major iOS upgrade that I have performed in the past.

There may not be 20,000 posts on the forum (maybe there are, I have no idea) but a cursory look at the internet shows that this is a real problem that many many people are experiencing following the upgrade from iOS8 to iOS9.

tintagel74 wrote:

 

4) Have always taken care of my battery - never overcharging or letting battery run down too low. This coupled with descriptions of other people's experience indicate that it is not a physical battery problem.

 

There is no such thing as "taking care of a battery". It is impossible to overcharge an iOS device battery (or any Apple product battery). You can leave it plugged in for a month and it won't overcharge. It is a mistake to attempt to out think iOS when it comes to charging the battery; it's smarter than you are. Charge it overnight, every night. It's also OK to let it go down to a low value, but if you charge overnight, every night, it probably won't go to zero. You SHOULD let it charge to 100% regularly (ideally, every night) for the best battery life.

 

There may not be 20,000 posts on the forum (maybe there are, I have no idea) but a cursory look at the internet shows that this is a real problem that many many people are experiencing following the upgrade from iOS8 to iOS9.

A cursory look at the Internet will reveal identical comments on battery life after every version of iOS that has ever been released in 8 years. So either every version has killed battery life, which implies that the battery should last no more than 5 minutes after two dozen releases, or the problem is not specifically any version, including iOS 9. The number of comments about battery life for iOS 9 is far fewer than for many other releases. You also have no "control group", because people who don't have a problem with battery life don't generally post and say, "Wow! iOS 9 has the best battery life ever!" You only see the posts from people who do have a problem.

If you really want to believe it is iOS 9 and there will be some magic bullet to fix it that is your privilege, but you are likely to be disappointed. BTW, my 4 devices on iOS 9 (iPhone 4S, iPhone 6, iPad 3 and iPad Air 2) have better battery life than they did on iOS 8. The 4S is amazing; it loses about 15% a day. My wife still charges it every night, but it's typically at 85% at the end of the day.