Android Operating System has a great functionality that pauses charging if temperature of the battery is too high or too low. Well, it is a known fact that high temperature is an enemy of every type of battery.
Android devices uses Li-ion batteries, and the charging temperature of these batteries is 0°C to 45°C, whereas tolerance span while discharging is pretty wide ranging from -20°C to 60°C. This higher lets your phone work even at very low and high temperatures.
At higher temperature there is an increased charging/discharging but batteries suffers shorter life.
Li-ion batteries are unable to accept charge under freezing point. This doesn't mean only the outside temperature but the temperature of the battery which may be higher due to constant usage or by the heat of your palm. Indoor temperature may vary too.
WARNING: If you encounter such cases don't try to heat your battery by flame, these batteries will catch fire, in worst cases burst too.
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