iOS 10.1 Battery drain

The problem is, Belisarius, that you are not paying attention to what i (and lot others) am/are saying/typing. I will repeat it once again: my battery lasts perfectly for about 24-48 hours! Like i told you previously at least once a week... The problem is still, that it shuts down at 20%, when it should last 4-6 hours more, but this 4-6 hours is found when i am fully (100%) charged, like i wrote before. It looks like some battery measurement issue to me, it is like the whole bat.-meter is pitched by 20% to one side, like it would be charged to 120%, and 20% was the zero. No, really, i appreciate that you try to calm the storms here, but would you also blame the battery if my screen would crack in a clear result of dropping?

"He can only speculate. I'm sure it will blame the battery though. Hehe" Speculation is for amateurs. Deduction and logic are for professionals. Isolate and remove variables, and whatever is left, is the likely cause. This, my friend, is the cornerstone of scientific method and logic. You twist isolated incidents and generalize; ignore repeat postings by users whom admitted having some issues in the prior iOS, so on, deriding others is mere compensation for poor analytical skills. Zero. I do not think you ever sutured a circuit, and here you are speculating on code and hardware interaction.

dear Genya, battery management is done by a control module. It is a sophisticated micro circuit built on your battery. It is also critical to calibration. Add another couple of sensors, also built on the battery. And a working phone does not shutdown at 20%, nor are the vast majority of iPhones out there shutting with 4 hours left. Do I know the cause? Nope. What if firmware? defective module? Sensor? Li Ion electrolyte bulge at 20% and ions cease moving, triggering the CB? No idea. The cause of how this came about is less important, and should be, than your resolving it. And all I am saying is that IF you were to have Apple replace it, and it resolves it, you found the issue. My Gf's 800+ cycles iPhone 5 never shuts down randomly. Nor my 6S. Or put it in perspective - there is thousands of times higher chances that a small micro defect is within your hardware, than coding just doing it for you, 4 hours left. I use the odds.

Amateur here! Haha! Yet every person had zero problems before the update. And you are dealing with a very small portion of affected users here. If you think a pool of 15 people out of the millions is good enough then you are the amateur.

When I contacted Apple about testing my phone the tech said that sometimes when a new update is done it reveals an underlying instability in the Battery. In my case the Battery was also reading less that 20% capacity. Instability issues will begin around 30% capacity.

yes, after battery now it is a mechanical, micro-circuit failure, that appeared after upgrading to 10.1... getting more and more interesting. but in this special (?) case aren't you who is speculating? Blaming first the battery, then, when comes out, that it lasts perfectly long time, my micro circuit, and defective module, when you don't know anything about my phone, although i wrote it 3 times already, that my battery life is perfect? No, no way it could be the software, the mighty ios10.1, the programmers over there never miss, nor make glitches, that can, for example, make mess in any of the phone's component. So what would be your advice now, that we discovered, that not my battery is failing? Buy the iPhone7 instead? Because my i5s might be surely defect? Or is it just over its "lifecycle", and starting "acting strangely", for just no reason? Sorry, but i found this rather ridiculous... and I use the facts, and my experiences...

"would you also blame the battery if my screen would crack in a clear result of dropping? " Two or three year ago Apple mentioned releases replacement stats, and in North America end December to January being a high time for repair demands- people damage their phones partying more and dropping them more than usual. I never cracked a case, but damaged two batteries dropping the 5. Had a minimalist case back then. The batteries tore themselves from the sticky gluing tape, and one ripped a control cable. Apple Care covered both repairs. Even though they still worked, Genius Bar replaced the dislodged batteries- because, be they are a computer within a computer, once they are even tiny bent, they are considered done and should never be re-glued. So all this to say that when people drop phones, and the screen cracks,chances are more damaged could be done inside.

Understand your frustrations, but lets compete two things, hypotheses, here. One, that, according to Support, your iOS install is good, no issue. Then, another support diagnostic, that your battery is fine. Consequently, chose one Support opinion as fact and dismiss another Support assessment as mistaken.. If you do, all bets are off. To your own statements, no one in Apple Support confirmed that you have bad code shutting you specifically, at 20%..

"my battery life is perfect." You just stated shutdowns. How can that be perfect? If I miss an important morning appointment as my phone shut off at 20%, how could I call that perfect? Shutdown normally are a CB trigger, module, power SHUTS OFF. electrons stop moving. Lights out. Battery life includes every nanosecond electrons keep moving.

And if the forum is about drain, and your battery life is perfect, why come here? Seek the iPhone shutdown forum..

Glitches- that was said- firmware. Some had a firmware fix. Stated it numerous times, but it happened rarely here. Glitches happen. It is known. Why would one suggest RESET? because it works? A poor straw-men fallacy assigning statements I never made.

Deduction, not speculation- shutdowns are never good. Since the first days I built a system, it is a 101 lesson: inexplicable shutdown are never good. Almost always, odds speaking, hardware. Yes, have seen rare apps causing a shutdown, and one Reset does it. But in your case NOTHING DOES IT. E.G. you pretty much self eliminate any coding as cause.

It is unlikely that you understand, or appreciate, how sophisticated this Apple hardware is. Even the battery, a micro computer within a computer. More power than all the Apollo Mission modules, and each had a couch worth of battery to power tiny calculations. It is also unlikely that you studied, in any fashion, electrical circuits, let alone built one, but here you are, discussing what Apple programmers do in their office..

Dropping- here is another thing you no doubt know. Google high speed phone drops. You will find out that a 4 twists less than a 5, 5 way less than a 6, and 6S and 7 have been very week reinforced. Apple itself discussed that. If you drop a 6, without a case absorbing those 20G's, on camera you see the phone twisting all axes x y z, longitudinally and laterally. This property is called torsional rigidity, measured in Nm. Because a 6 is much larger than a 4, with so much less torsional rigidity, that bigger battery also twists. So ten random drops on a 6 not the same as 20 random drops on a 4 or 5. The one phone component that hates such bending, well, you guessed it. Both the 6S and the 7 have had their torsional rigidity increased significantly to protect internal components. Having a case on 6 is pretty descent advice.

sorry for this, but you are acting like a broken parrot, repeating the same bullcr*p every time, not taking other facts in consideration, but yours. Like i said: battery life is perfect, test say it is perfect, or you don't think it is, when it lasts 24-48 hours, when fully charged? You said, that it should last at least this long. Or are you now facing your own words? Oh, wait, no! When my phone shuts down at 20%, it shouldn't be perfect. Probably the 5 hours standby time on 100% is also some kind of apple-gift, that i should praise, 'aight? There is no chance, that something is misconfigured, why would it be?

according to my "dropped phone", that question was rather theoretical, was not serious, and i wasn't expecting any answer to it. I didn't think, that you would write a whole novel to it, and lead it to (again) batteries 😀

"Like i said: battery life is perfect, test say it is perfect" Who is the parrot now? "Perfect' does NOT exist in engineering. You are welcome to read a book. It is an invented word, a self-soothing adjective you chose. Of wait... what happened to the other users, half a dozen of them, with the recall, whom also passed tests... Hmmm, lemme see... their 'perfect' is not the same 'perfect as yours.

Does you car shut down at 20% gas? Does your tablet? Your laptop? You somehow, without any technical knowledge, pretend figuring out how electrons work, take it in isolation, when until this forum, you likely never heard of a control module...

You meant 'rhetorical' not 'theoretical', right? Let's not confuse them. A paragraph is not a novel. Check out War and Peace. Three Musketeers. Pride and Prejudice.

So this is what will happen. In an ideal world, somehow, some update, all issued are gone. But in case they are not, you could re-contact Apple Sr Support. They may offer diagnostics, perhaps even shipping for testing, or recommend the Genius Bar. The Genius Bar will generously offer firmware reset or even advance overnight testing. Hopefully these resolve your issue. If all these fail, updates have no effect, lab testing nothing, both support levels will inch towards the dreaded 'h' word (hardware) replacement. Although you can clench your fist and reply "But it is PURRFECT, PAARFECT!", hopefully it never gets to that point and your issue is resolved.

Okay, so I'm now starting to think it's a battery problem and might get my phone battery replaced. I don't even know how but on my mother iPhone 7 Plus she gets this - http://imgur.com/7YZGeEa which is amazing. So I'll book an appointment when I'm free this week, also I have school today so I might check how my battery life does then as well.

The same thing happens to my phone too. And something interesting, It doesn't matter if i uninstall the app which is supposedly consuming all that battery, the next app on the list will take its place and consume the same amount of battery