2016 may be remembered as the year self-driving cars started to become a thing, or as a low point for American democracy. But it will also be remembered as the time that expensive electronics started doubling as handwarmers.
Apple and Samsung devices (and washing machines!) have started going boom with slightly worrying regularity, all because of the sometimes-unstable power source lingering inside. Here’s how to keep your lithium-ion-using device at a safe and non-explosive temperature.