Voltage standards, plug shapes, and even charging network compatibility can differ significantly between regions, which trips up travelers more than device compatibility does.
For a laptop, the practical impact of travel season conditions shows up mainly as slower charging speed and, in extreme conditions, a temporary charging pause as a protective measure — not permanent damage in normal use.
What to do
Let a laptop that’s been in extreme heat or cold acclimate for a few minutes before charging at full speed — most protective slowdowns resolve on their own once the device or battery reaches a safer temperature range.