You've seen it before, your pull your phone out of your pocket after an hour of skiing only to discover that the battery has gone from fully charged to 50 percent. The lithium-ion batteries that our cell phones depend on aren't designed to withstand extreme temperatures. Apple suggest that iPhones perform best between the range of 0 and 35 C. In frigid temperatures, your phone can randomly shut off, which doesn't help in emergencies. For cold weather adventurers planning to head to the mountains this winter, here's how you can protect your phone and prolong its battery life when you're in the cold.

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December 15, 2020

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