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iPhone Shuts off in Cold Weather, Why and What to Do

May 15, 2017 03:29 pm / Posted by Jenefey Aaron to iPhone Tips
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"iPhone 6 battery dies in cold weather. Phone is about 15 months old, and dies from good battery 50% to 30% down to nothing and auto switch off. Anybody know anything about this?"
- From Apple Community

When taking an iPhone out in a cold weather, the battery life will diminish quickly and the phone will shut down soon after the battery dies. Many users reported that iPhone turn off in cold weather. In this post, we will discuss why and what can we do when iPhone 7/7Plus/6s/6/5s/5 battery dies in cold weather.

Part 1: Why iPhone Automatically Shuts Off in Cold Weather?

All iPhones use a type of battery called Lithium-Ion (Li-ion). According to Battery University, cold temperature “increases the internal resistance and diminishes the capacity” of a Li-ion battery. Specifically, they estimate that at -18 degrees Celsius a Li-ion may only deliver 50% of its capacity.

According to Apple, iPhones and other iOS devices operate most efficiently when the ambient temperature is between 32 degrees and 95 degrees. And iPhone is actually designed to shut down automatically under certain conditions, such as extremely cold temperature. To an iPhone user, some of those shutdowns might seem unexpected, but they are designed to protect the device’s electronics from low voltage.

iphone shuts off in cold weather

Part 2: How to Keep Your iPhone From Dying in Cold Weather?

When the temperature falls below freezing, keeping your phone warm will help iPhone alive longer. There are a few things you can do to keep your iPhone working and protect it from dying in cold weather.

That’s all for why and what can we do when iPhone 7/7Plus/6s/6/5s/5 shut down in cold weather. If you have any other suggestions, please share them with us at the comment area.

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