iPhone 6 battery dies in cold weather

I went through a similar process without all the waiting, shows up for my appointment and in less than 10 minutes explained the problem and they ordered a battery. I was told the same thing that it would be at least 2 weeks but I happened to be there a week later and asked if they had a battery in and as luck would have it they did and in an hour and a half my battery was replaced and my phone works great. Best of all it lasts all day and doesn't die in the cold!

I will explain the difference between a new iPhone6 battery and an "old" one (many cycles).

In the picture below you see what happens to a new iPhone6 battery when the temperature go from +28 degrees C down to -12 degrees C, and then up to 28 again.

As you can see, the battery capacity have a nice and controlled curve and this iPhone6 will not have any problems during cold weather. At -12 degrees C the battery capacity is down at 81% (which is very good).

Now, take a look at the next picture that show a used iPhone6 with a battery charge cycle of 291.

At room temperature, the difference in battery capacity is not so big. This old battery have 85% capacity in room temperature, which is good.

The problem is when the temperature decreasing.

In colder temperature the iPhone6 battery have a very different curve than a new battery.

Even at 0 degrees C the capacity has decreased from 85% to around 40% (which is not ok).

I also made some tests on another iPhone6 with 453 charge cycles, and this one has a battery capacity of 5% at 1 degrees C.

But when Apple test your battery they do it in room temperature = the battery looks good.

Im pretty sure that Apple knows about this but it would be really expensive to admit it to the public.

SUCCESS AT LAST!!!. Ok a little over a year ago when the problems started, post iOS9, cold weather and slowing down, I had my battery tested at the Apple Store. It checked out fine, so the tech said to wipe out the phone and reinstall from back up. That sped up the phone but no joy on the cold weather problem. Fast forward and the phone slowed more and more with each iOS update. Anyway, I reset the phone again and then made an appointment at the Apple Store to replace the battery. Well the battery failed and I have now replaced it. THE PHONE IS NOW FASTER AND I JUST TOOK MY DOG FOR A 1/2 HOUR WALK AT -11C OR 12 FAHRENHEIT STARTED WITH 97% MADE A COUPLE OF CALLS AND GOT BACK WITH 92%!! I EVEN HELD THE PHONE OUT AND NOT IN A POCKET FOR 15MIN. PROBLEM SOLVED EVERYONE.

I just took mine to apple last week. They ordered a battery and within two weeks it will be replaced. They have acknowledged the issue and are rectifying it. Just contact apple.

Seems like apple is now replacing batteries:

https://techcrunch.com/2016/11/20/apple-iphone-6s-unexpected-shutdown/

I had the same issue today. I have iPhone 6 and had it attached to my bike on a bike trip today. It was about 10° C outside (50° F). I had about 60% battery and it turned off without any notice. When I tried to turn it on, first it said I should plug it in to recharge, when I was holding the power button, it started and then turned off after about 10 seconds of me using it. I've tried this about 4 times with some breaks between, but it was the same each time.

Then I really needed to look at the map for directions, so I was trying out various tricks to get it working. I turned the phone on and then very quickly turned on Airplane mode and then went to settings and turned on Low battery mode. After that, the phone didn't turn off and I could use it. I even turned off the Airplane mode after some time and it was still working and it didn't turn off after that. So maybe the Low battery mode helps with this?

After that, it didn't turn off for like 2 hours and was working just fine. When I came back from outside, the phone had about 27% of battery (I was using it a lot for navigation etc.) When I plugged the phone in (still quite cold), after only few seconds of charging, it reported it had 41% of battery. Weird.

My phone is about 1.5 years old, but in a good state generally.

It seems that it has some issues with battery in cold weather and it doesn't even have to be that cold... I wonder if I'll have more issues when the winter starts, but unless cycling, I usually keep the phone in my pocket, so I guess it should be fine.

Started happening to me on bike rides with my iPhone in my backpack. Apple Expert was no help, they did a diagnostic check, which displayed my battery dying then recharging in a few minutes, so they updated my Firmware which did nothing.

Quick solution: warm the iPhone in your hands and perform a reboot. (Hold the Power & Home button at the same time).

iPhone went from 0% to 55% ...

Guess I'll be keeping my iPhone in my pocket for future Winter rides.

I and my wife had exactly the same issue today. We both have iPhone 6s Plus. We went for a walk today afternoon and it was about 6°C outside (it started getting cold, as winter is coming). My phone had about 45% battery and phone of my wife had about 60% battery, and after 10 minutes of walking both phones almost simultaneously turned off without any notice! 😟😟😟 We tried to turn them on, then it was said that we shall plug it in to recharge (completely nonsense). After second try, by holding the power button, and finally my phone started and then turned off again after about 40 seconds of start up and using it. The similar situation was with the phone of my wife. We rapidly tried to turn on the phones so many times, but it was unsuccessful and the same each time.

The most interesting part of this story was when we came back from outside and in a few minutes both phones turned on without any difficulties, and my phone had about 30% battery!!! and phone of my wife had 40% battery!!!

Both iPhone 6s Plus are less than 1 year old. It's obvious that not only iPhone 6s has hardware issues with battery in cold weather (as Apple reported), but also iPhone 6s Plus.

I use iPhones since 2007, every year I was changing the model and since that time I never had any issues with battery, even when outside temperature was below 0°C, with all my iPhones I had in the past.

I am very disappointed on that kind of quality of hardware which costs ca. EUR 1100!!! And what I really don't like that winter season is coming and I might face this issue every day and so many times per day that I can even not imagine!!!

@Apple, please try to solve the issue and not hide it. Customers will thank you for that, otherwise you loose them by ignoring this hardware issue. The story with Samsung Note 7 is a good reference to think about.

P.S. As my warranty is still valid, I am going to file a claim and will see what is gonna happen.

Its very true that the temperature operating range is 0 - 35 degrees C (for iPhones) and Apple is really taking advantage of this, I will explain why.

If you feel that your iPhone dies when you are in Cold areas, and then leave your mobile phone to Apple service center, they will test the battery in room temperature.

The problem is that in room temperature the battery will show "good" (around 80-90% capacity if you have used it for a while). They will return your phone and say that (in room temperature) the battery show good capacity.

The problem is that this old batteries (that you have used for a while) behaves very very different in Cold temperatures compared to a new battery.

A new battery have no problem operating in 0 degrees C and there will be no problem even in -5 to -10 degrees C.

In -10 degrees C a new iPhone battery will have around 75-80% capacity.

An old battery drops enormously in capacity below 0 degrees C.

So for us who live in Cold countries its a pain in the a... during Winter if you dont own a new mobile phone.

Maybe this is one of the reasons why Apple Always release new models Close to the Winter, then there will be no problem first Winter at least.

I have posted graphs in earler posts that show this behavour in Colder weather.

Apple have huge problems with their batteries when they start to get a bit old (like 1 year).

When the battery is new, there is no problem at all to use it outside in 0 degrees C (32F).

If you do the same test 1 year later when the battery have a few 100 charge cycles, the result

will be that the battery goes from 100% to 0% in a few minutes.

And when you take it inside again and warm it up (without charging it) it will start up again and

have maybe 50-70% battery left.

A new battery will solve the problem, for a while...

Hi

Go to apps store download Battery life it will test your battery condition.

If your battery is 2 /3 years Old it will need replacing make an appointment at Apple store.

Or go to Support.apple.com for posting details use SIMCARD in other phone if you have one Mine took 4 days.

Cheers

Brian 🇬-1F1E7;

If you need the phone for emergencies, replace the battery, your life is worth a few bucks.

Batteries are replaceable, people do it all the time. That addresses the problem perfectly.

I have a 6 with the same problem. It dies consistently in 45 degree weather with full charge. I just returned from the Apple Store after second visit. First visit they checked battery which was fine and then reloaded software. This visit they once again checked the batttery and found it was fine. I showed them this thread and noted that 45 degrees F is not very cold for a phone to not function properly. They said they couldn't do anything for me as " it's just an issue with some iPhone 6's". They said

I could upgrade or have battery replaced for $79. Really disappointing. It tells me apple products re going downhill for a phone not to function over a reasonable temperature range. I also replaced the front microphone a few months ago for $119.

How is it now a "big safety factor" the operating temperature range of the iPhone has not changed in 7 years, here it is for those who forgot.

iPhones have an operating temperature ambient situated between 32° and 95° Fahrenheit, that's 0° and 35° Celsius.