iOS 10.1 Battery drain

I have also been keeping track of my wife's iPhone 6. She is not a heavy user, looks after it pretty well and uses an official Apple charger.

I checked her phone using CoconutBattery, screenshot below. I bought it for her on our Wedding Anniversary, September 2015.

22 years and still going strong.

This makes the phone about 16 months old, though it was manufactured in May, it was bought from the Apple reseller in Gibraltar BNIB September.

If it were a year or less, then the 79.4% capacity would be a fail and would be replaced by Apple as a failed battery.

So, I can conclude one or other of the below:

• Apple iPhone batteries are designed to last about 18 months
• iOS 10 has also got to her iPhone

Once the experiment on my 6s is complete, I will then know how long a new battery lasts before reaching the magic 80% replacement figure.

Adrian.

gentlemen, a reminder from Apple Support Communities Use Agreement. Note:

Submissions

Stay on topic. Apple Support Communities is here to help people use Apple products and technologies more effectively. Unless otherwise noted, do not add Submissions about non technical topics, including

1. Discussions of Apple policies or procedures or speculation on Apple decisions.

and

1. A submission created solely to advertise a book, service, software or some other item for sale.
2. Any reference, including a link, to a commercial item that is not directly related to a relevant technical support question or answer.

Your is a truly heartfelt testimony, not easy hearing it has given you so much troubleshooting issues. For your post I think some pointers may help.

1. If doing troubleshooting by phone, you can request an email copy of the incident number and description. It really helps long-term.
2. If you have Apple Care, Apple told me over the years that the coverage extends beyond it if the issue in question started while under warranty. And why that incident # email helps.
3. Measurement Apps do not work. i tried four for the argument's sake, they really do not work. Some even reported a completely wrong original battery capacity! Or a 10% health variance. Have yet to see any of them endorsed by Apple. It being in the Apple Store does not mean it has some Apple engineering stamp.
4. IPhone reset works pretty well. On average, up to 30 min full restore via Lightning. Stopped counting how many new or older iPhones I helped friends and family with just a Backup followed by a Reset. In addition, the Genius Bar has additional firmware reset options not available to us. I travel sometimes through unfriendly countries where they dump all sorts of bad code via SMS. I learned to trust the Reset as a really friendly tool when back in North America.
5. Battery University is the best, PhD grade, peer-to-peer reviewed start point on learning about Li Ion technology. They cover everything, with charts and pictures. Some bits will really surprise you. For example, no battery ever works between 100 and 80% as it does 30 to 0%. The electrons move differently when fewer Li ions in the liquid. And the module has to make sense of that at each level. And as the Li gel wears out, the numbers come out of sync. Beyond 600 cycles in 12-14 months, batteries are done. Cheap ones can fail in 2 months, below 100 cycles. They also tend to fail with similar symptoms: out of sync numbers, unexpected shutdowns, % jump when discharging. Rarely will they just overheat, swell and burst in with flames, as it happened to the 55incidents/17bn$ Samsung.
6. If you agree that some users resolved the issue by replacing the battery, and do what the dozen did successfully, up to you to reconcile that with your iOS statement. Someone here is even throwing 20 hrs a week Pokomon Go, and admits being unable to recreate the issues or kill his battery as he experienced prior to battery replacement.

The rest of your points are heartfelt, and Apple feedback http://www.apple.com/feedback/iphone.html is best for that. if whatever you read here helps you resolve the issue 100%, that is great and hopefully you return and report success.

have not really seen here any apple apologists, but it is most unfortunate that your expectations do no match reality. Getting real is as smart a choice one can make, and achieving internal nirvana. Had a fantastic dinner yesterday with friends; also asked a 5S user for screen shots. 3 years old, 10.2, 94-99% battery health. Just works. All theirs worked.

it is unfortunate that, unlike various users whom posted here, you just do not understand that the life expectancy on daily used batteries can be as low as months to one year. Or 1 day in the desert. This is an industry wide reality, no matter the manufacturer. Some people have no flats ever. I only had one once, a 180mph blowout on a belgian track.

if you dislike tech reality (and Android issues will make you scream as much or more), perhaps avoiding mobile devices is the best way to avoid extreme displeasure.

Hello, me again, just hooked up my iPhone 6s with the battery replacement and checked coconut battery.

See screenshot, my battery was replaced by Apple on the 22nd December so I have been running it for about 17 days.

1632/1715 = 95% capacity, I will carry on doing these tests to see how this deteriorates with time on IOS 10.

Adrian.

Does not look good. Do you have a screen shot of the apple internal reporting, vs the app?Posted earlier a screen shot of a friend's iPhone 5S 10.2 with 500+ cycles at 99% health... My 6s with 10.2 hovers at 99-100%, 120 cycles...Also plsvn's comments that he was told of another hardware issue (besides the known battery recall issue), does raise some questions about what is it we are not being told...

My battery charge randomly falls from 30-40-50% to 3-1%, then it shuts down if I don't plug it quickly to a battery charger.

The affected device is an iPhone 6, 64 GB and the issue started with iOS 10.1.1, still here with 10.2.

Subsequently once the iPhone is plugged, the battery level jumps from 0-1% to 30-40-50%.

Today I have been able to get the screenshots of that recharging anomaly, see below.

NOTE: the iPhone is charged with genuine Apple battery chargers only.

Cheers.

Luigi

For the record 10.2 is no better. I'm losing 10% per hour on standby and this is a screen shot of mine that says Siri is taking battery down even though I've now turned Siri off!! This drain rate = 40 times the normal drain rate on standby. I usually go down 3% over 12 hours on standby. Iphone 6. iOS 10.2

Not sure if this helps in any way whatsoever, but my old iPhone 6S Plus started having serious battery drain issues then one day actually died. Under warranty from the phone company I have the contract with I was given a *brand new* iPhone 6S Plus. Set it up as a totally new phone under a new apple ID, didn't put ANY apps on it. (Stupidly) updated it to 10.2. So we're talking about a phone literally as close as it can be to how Apple have provided it. See the screenshot below... over 50% battery charge lost from simply NOT using the phone for 8 hours. Not sure where the 12 minute usage came from as if I'd have used any apps they'd show right there on the screen.

So although various phones may be suffering from various different bugs, I can confirm that whatever is affecting MY phone is NOT anything to do with any apps. It's not a 'corrupted' app because I didn't run any. This is an iPhone as 'virgin' as it can get, utterly untouched, yet getting through as much battery in an hour on standby as it should be getting through in a day.

Since then I've tried the various 'suggestions' - resetting the settings. Erase and reset fully. DFU. I'm sad to report that NOTHING has solved the battery drain. Obviously I've gone back to my phone provider and informed them I have a broken phone which sadly will need to be replaced under warranty. Again.

i don't want to argue with you either, but facts are still facts. Wanted to give a try to a reinstall, did it yesterday, spent like 3 hours (itunes said "no restore is possible, so had to dfu it), lost all my login essentials, have to search for every one of them (gmail, waze, bank app., paypal, etc), and utnil not found, and entered again, i am stuck with all my daily important things. Of course, the battery problem persisted, today immediate shutdown happened again, at 20%, and no chances to charge it from PC USB, only from 230V, so if i have only a USB cable on me, i am totally f....d. Even my previous, old battery lasted until the end, eg. 1%, at least i could calculate it, how much juice i have left until shutdown, and even got a notice at 20%, and 10%. Now? Nothing on earth. Probably there should be a new option in one of the following updates: getting a notice at, let's say 50%? Then at 30%. And then it can shutdown itself at 20%. It is not an option to have a 230V plug by myself every day. By now, after 2 hours i managed to turn it back on. Here is my battery test too. To be honest, i dont even care anymore if my account will be suspended (what for exactly? Facts?), i never used any apple apps, no facetime, no videos, i'm not doing pokemon either, i am not a spender on AppStore. I would use a pre-ios10 jailbreak as good as having this issues. I never liked iphones anyway, don't even know, why i'm having one... my prejudices proved themselves... i am deeply disappointed... and this is not a speculation, just my facts, my personal experience, and my personal (mostly objective though) opinion... i am a sad, sad panda now

There is more to using these as mere imprinting, there is frequency, liquid/gel resistance, there is an entire science. I also used 'operational' not shelf-life. Shelf life for a discharged Li Ion battery is a year max and dead after. 50% capacity in storage with regular trickle charging. welcome to read Dr Pete'r Novak's research. Operational is something altogether. For example, <100 cycles which cross the 30-0 threshold can do a battery. It may reach 600, but in bad shape. Then you take the gf, she is getting 20 hrs a day, 800 cycles as she just happens to plug her often around 50%. Or a dozen cycles in heat - and at 122F/50C those who had their phones- regardless of make- open in the desert got two weeks out of them.

And when you mention theory, it means the way things work. For many people- and do not shy of recalling what they wrote, their working assumption was that it was the iOS. After replacement, such as paikinator, he recanted with the battery being the issue after all. He and other returned a few times to report no more issues. Clinical trials need success with half a dozen people you had twice that here no fails.

if you accept that any major upgrade rearranges some parameters, you are still discussing an impact on battery.

There are also one user whom reported bad Siri drain- not the rest. Online read of a few whom had a coding error, Genius Bar redid their firmware (they can do it in the lab), bug is gone. But let's talk over 600 cycles, and the coding is the last thing a technician is supposed to look at.

"Both that have spent many summers here in the high desert with temps above 100 f. So many people having the same problem. How much do you get paid from Apple belisarius?"

iPhone 3GS iOS 6 and poor battery life. If you google it, you will find over 350,000 entries on 3GS battery issues. Does not mean the phone was not a success, 3Gs, a phone that shipped up to 20 million according to Statista, versus 250 million 6 in one year alone. Less demand, less amperage, smaller screen. Funny, and if you include the number of my posts I had deleted, two for recommending your solution no less-might think twice about assuming being paid by Apple. Also have a Sep 2003 LG Clamshell that travels the world with me as secondary alarm in case the iPhone is silent or low volume. Including the combat tour, managing its temperature. Still works the clammie- 13 years on. Since my Gf gets terrific life out of her 5 with iOS 10.2, if I am a betting person, you are a cell user with percentile anxiety, likely to plug it often if going down and rarely let it slip below 30 or 0 with hard usage. Usage relative, maybe you kept the 3Gs as a home iPod, no SiM card/ cell tower ping, in which case life bets are off as it stays in a controlled environment and very low drain. Like my clammie. But, not, I do not believe a second that you used that phone, as a phone, 2,550+ days, >3000 cycles. Nice joke but mastering forensics is a professional trait, and personal attacks on me do not help users resolve their issue.

toothsaw, if anyone here is able to prove, definitely as you wrote, something wrong with code, he would have applied and been hired with a high six figure income. First thing, battery level measure you are mentioned, is built on the battery control module.

Second, you are introducing new variables, hopefully that is all of them. Wrote experiencing poor battery life <540/67% with iOS 9; replacing it, no issues for a while, then new issues. So we know you had a battery life issue prior to iOS 10. And that you use a battery pack, which, even though sold in an Apple store (like my poor Belkin kit years ago), may have an impact on your batter- or any battery- you connect to it, simply as these phones were designed to work with normal AC/DC conversion via the Apple Charger. That battery pack was at some point used on an iPhone 5 as well, which makes for two gens and three batteries used with it.

The attached pic is from the UL report- ran a series of basic electrical safety anything short of this, there is no way to tell if, after so many years and cycles, your battery pack still supplies proper DC power. All these packs have a finite, relatively short life and cycles, and may even be well below Apple's own battery lie expectancy. They are not endorsed by any manufacturer even though widely available in stores. Either case, quite the variable in this situation. I think Apple Support, diagnostics might help, and avoiding that charger maybe the best thing for this or any other future phone.

If i had a magic wand id wave it and fix remotely all these issues. Hope your appointment goes smoothly and issue are fixed. sharing a screenshot of mine. In your case Facebook may be normal to burn a high percentage as it is a complex message fusion center.

"and who was talking about Samsung?" YOU ARE. i will not reply with face palms, as I do not condone violence towards women. when you say Android, you say this chart- Samsung. The #1 dog is also the majority parts suppliers, and shares manufacturing sources with the rest. So its particular issues also are an entire market problem. Keep this in mind next time when recommending users resolve this minor, resolvable iPhone issue by going to Android.