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The worst thing about my 6s was when running in the forest.
Ambient temperature about 2-4° celsius. The device shut off. Apple DID not want to replace the device. "Its working under specified conditions!" Yes thank you. Maybe in California. Not in Europe.

They are full of ****

You can complain all you want, but this is a known fact of any battery: The colder they get the slower the chemical reaction inside and the lower the output of the battery. It's why your car with the weak battery won't start on the coldest morning of the winter. I've been skiing with phones from three different manufacturers and they all shut down when they got cold.

Ironically, Apple's updated code might actually help you by lowering the amount of energy your phone is trying to suck out of the battery and allowing it stay on longer. Somehow, I doubt that it'll change your mind.

Best advice: Keep the phone in a pocket where it's warmer.
 
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You can complain all you want, but this is a known fact of any battery: The colder they get the slower the chemical reaction inside and the lower the output of the battery. It's why your car with the weak battery won't start on the coldest morning of the winter. I've been skiing with phones from three different manufacturers and they all shut down when they got cold.

Ironically, Apple's updated code might actually help you by lowering the amount of energy your phone is trying to suck out of the battery and allowing it stay on longer. Somehow, I doubt that it'll change your mind.

Best advice: Keep the phone in a pocket where it's warmer.

Apple says 0-35 C is fine. OP said his device was turning off at 2-4C.

https://support.apple.com/en-us/HT201678

"Use iOS devices where the ambient temperature is between 0º and 35º C (32º to 95º F). Low- or high-temperature conditions might cause the device to change its behavior to regulate its temperature. Using an iOS device in very cold conditions outside of its operating range might temporarily shorten battery life and could cause the device to turn off. "
 
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I like Apple, but if this is the case? This doesn't surprise me, especially after things like "Touch Disease."
 
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I did read the article and I didn't see the word 'defective' or 'faulty' used once.

Aww your iPhone slows down by a tiny amount when you open flappy birds... boohoo...

i see significant slow downs when opening MAIL..a 3-10 second delay before the screen becomes active.. Thats not a tiny amount. And when i use OUTLOOK app, it doesn't do that...so its Apple only apps also.
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Their cold-weather algorithm isn't too great. I had my phone shut down yesterday on my way to the grocery store after shoveling the driveway. It shut down just before I went in. Last time I checked the battery it was at 86%. Once it warmed up and I could turn it back on again about 10 mins later it reported 83%. I don't believe for a second that the cold reduced the my battery capacity that much.

when I lived in Wisconsin, I could see my phone battery drop form 40% to shut down in less than a minute. Apple replaced the battery (actually they gave me a replacement since it was within..i want to say a year from purchase)

thats DEF a sign of a bad battery
 
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I am VERY surprised macrumors did an article on this! WOW! In all honesty I assumed this site was an Apple apologist run site. Props to MR!

I am one of the affected with an iPhone 6s 32GB that just turned a year old on the 26th of November. So battery degration "over a few years" is hogwash.
Honest question: Are you sure it’s due to this?

My 6s (battery freshly replaced for unrelated reasons) slowed down to a crawl recently and battery drain went way up at the same time - in my case it was because there was very little free space (around 1GB) left on the SSD, and iOS seems to run into all kinds of issues when that happens. Deleting a bunch of unused apps and a whole lot of old podcasts fixed it.

So, unless you’re 100% sure that your phone’s flash memory isn’t at its limit, it might make sense to at least rule out that potential cause.
 
I will not obviously keep getting ripped off.
If you want to continue get taken advantage of then go for it.
I always knew there was something funny going on with iphones turning very very slow with each iPhone iOS upgrade. At least now we have proof.
Why would I or anyone keep giving money to a company that screws them over like that?

Hence the point that people make over and over again about alleged “planned obsolescence” They WOULDNT do that intentionally because of exactly what you said. It would hurt them far more than it could ever help them. People would say screw this and bolt the Apple camp.

They aren’t slowing down phones intentionally to make you buy a new phone. NOT HAPPENING. They just suck (really bad, apparently) at software optimization and it’s gotten worse and worse as devices get older and they jam more features year after year.

Funny thing is iOS 11 works amazingly well on my 1st gen iPad Pro. Not so great on my old 6s Plus.
So apparently they are savvy enough to slow down some phones and not tablets, right?

Please.

This theory (as always) holds its ground as well as cockroaches do when the lights come on.
Maybe this is where the Forstall connection comes in. Didn’t seem to have this problem when he was around.
 
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We have three 6S’s in our household. All 2 years old now, all three suffering from major slowdowns.

I think I’ll be writing to Apple and using this as supportive evidence. This isn’t acceptable on such an expensive device.
 
My 6s was one of the devices Apple said they would replace battery , got it done a year ago after a few shutdowns. Running good ever since with same performance even though only 9 gb free. Battery life says I have 89 percent capacity with 438 cycles. I kept it on 10.2 though.
 
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Honest question: Are you sure it’s due to this?

My 6s (battery freshly replaced for unrelated reasons) slowed down to a crawl recently and battery drain went way up at the same time - in my case it was because there was very little free space (around 1GB) left on the SSD, and iOS seems to run into all kinds of issues when that happens. Deleting a bunch of unused apps and a whole lot of old podcasts fixed it.

So, unless you’re 100% sure that your phone’s flash memory isn’t at its limit, it might make sense to at least rule out that potential cause.

64GB 6S, we have three in our household, all three have 30GB-40GB free. All painfully slow. If I type quickly you can see the keys lagging behind considerably.
 
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Any paired comparisons? With the same phone before/after battery swap?

And what degree of performance do these arbitrary numbers refer to?

And why is it plotted as a probability density? Is it 50 or 50000 samples?
 
iPhone 6 here... 30 seconds to more than a minute for letters to show up after typing. Sometimes I press on a link and nothing happens for longer than I can hold my breath. Then when I go to press on it again, the page opens and I've inadvertently pressed another link and I have to wait again...omg I want to throw it thru an Apple store window. The battery was replaced a year ago (my cost) but my phone is all but bricked and rebooting/resetting/restoring doesn't help.

~Thank you iOS 11... As soon as I installed it, this scat has been happening.
 
Any paired comparisons? With the same phone before/after battery swap?

And what degree of performance do these arbitrary numbers refer to?

And why is it plotted as a probability density? Is it 50 or 50000 samples?

IMG_1351.PNG
 
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Apple says 0-35 C is fine. OP said his device was turning off at 2-4C.

https://support.apple.com/en-us/HT201678

"Use iOS devices where the ambient temperature is between 0º and 35º C (32º to 95º F). Low- or high-temperature conditions might cause the device to change its behavior to regulate its temperature. Using an iOS device in very cold conditions outside of its operating range might temporarily shorten battery life and could cause the device to turn off. "

Emphasis on "very cold conditions".


0º Is not "very cold"
 
iPhone 6 here... 30 seconds to more than a minute for letters to show up after typing. Sometimes I press on a link and nothing happens for longer than I can hold my breath. Then when I go to press on it again, the page opens and I've inadvertently pressed another link and I have to wait again...omg I want to throw it thru an Apple store window. The battery was replaced a year ago (my cost) but my phone is all but bricked and rebooting/resetting/restoring doesn't help.

~Thank you iOS 11... As soon as I installed it, this scat has been happening.

I’ve not had it that bad but it’s still extremely noticeable and totally unacceptable
I would go crazy.

It’s bugging me. It’s not like iOS 11 really changed anything considerably. Yet the performance hit is so bad.

Just spoke to Apple support who ran diagnostics and said everything is fine. Hopefully if enough people raise this issue then Apple will have to respond.
 
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Emphasis on "very cold conditions".


0º Is not "very cold"

I agree. However, very cold or not, I was just pointing out that you were within apple's own guidelines. They should have replaced your battery, IMO.
 
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when I lived in Wisconsin, I could see my phone battery drop form 40% to shut down in less than a minute. Apple replaced the battery (actually they gave me a replacement since it was within..i want to say a year from purchase)

thats DEF a sign of a bad battery

I’m out of warranty and past 500 charge cycles so I don’t really expect to do anything but grossly overpay Apple to fix (my screen has a tiny crack between the home button and the bottom edge of the screen) it or replace it myself. Which I’m totally fine doing. I’ll wait until the total capacity drops another 10% or so. Aside from the cold my battery and performance are still doing alright. My phone never qualified for the 6S recall either.
 
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I’ve not had it that bad but it’s still extremely noticeable and totally unacceptable


It’s bugging me. It’s not like iOS 11 really changed anything considerably. Yet the performance hit is so bad.

Just spoke to Apple support who ran diagnostics and said everything is fine. Hopefully if enough people raise this issue then Apple will have to respond.

iPhone 6S Plus here. Phone runs great on 11.2.1. What you're experiencing is definitely not normal and I'm way past 500 cycles. I'm curious to see what would happen if you wiped your phone completely and set up as new.
 
I am NOT implying that Apple is doing this on purpose. I think it was a just a short-sighted fix.

BUT the apple defenders in this thread are starting to sound like victims of Stockholm Syndrome!
 
Apple has a battery replacement program for the 6S. I wonder if this is related?

This is the kind of thing you would only worry about on Android. Not anymore, I guess.
Actually, you don't worry about this on Android, since you will be using a newer phone in one year anyway. :D
I mean let's talk about the 6S, which was released on 2015. Some of the Android flagships released that year were the Galaxy S6, LG G4, and Nexus 6P. How many people are still using those? A few Nexus 6P users might still be holding on to theirs, but I doubt there are many left with 2015 Android flagships.

It's the catch with iPhone. iPhones last and supported longer, but the battery still has a shelf-life.
 
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