Customers Told Not to Use iPhones in Freezing Weather

Apple late last month responded to customer complaints by warning them not to use their iPhones in subzero weather.

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"Use iOS devices where the ambient temperature is between 0 and 35 degrees Celsius", a message on the Apple website read. "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".

Many iPhone users here were flabbergasted, while others wondered if they should move to Southeast Asia to make sure that their devices work without a hitch.

Apple unveiled its latest iPhone X last month and faced a series of complaints about the device suddenly freezing. There were suspicions that the problem is caused by the new infra-red camera and 3D sensor. But the exact cause remains a mystery.

Apple updated software last month after complaints about the screen freezing and claimed that the problem is now resolved.

Batteries are sensitive to weather. When the temperature drops below 0 degrees, the movement of lithium ions slows down, making it difficult for the battery to produce electricity, and cold temperatures cause batteries to run out quickly.

At -10 degrees, their efficiency decreases 30 percent. At -30 degrees, the battery stops operating. But excessively high temperatures cause the battery to melt or even explode.