Devices in hot weather
Heat slows devices down and adds stress to batteries.
Phones, tablets, earbuds, smartwatches and laptops already generate their own heat. When the surroundings are hot, direct sunlight, charging and demanding use can quickly push temperatures too high.
Published 25 June 2026
1. Never leave a device in direct sun or a parked car
Window sills, dashboards and closed cars heat up quickly. Keep devices in shade and move them away from the sun-facing side of a bag.
2. Avoid combining charging with demanding use
Navigation, video calls, games, camera use and fast charging all create heat. If a device becomes hot, pause charging or heavy use and let it rest in the shade.
3. Let heat escape naturally
Remove a thick case when needed and place the device on a dry, shaded, hard surface. Do not block a laptop's vents with a blanket, sofa cushion or bag.
4. Do not use a refrigerator or freezer
A rapid temperature change can create condensation inside the device. Water, ice packs and wet towels should not be placed on electronics either.
5. Recognize warning signs
A dimmer display, paused charging, reduced performance or a temperature warning are protective responses. If a battery swells, produces an unusual smell or becomes hot while idle, stop using the device and have it checked.
6. Remember smaller battery-powered devices
Earbud cases, power banks, smartwatches and cameras contain batteries too. Keep them out of direct sun and check the manufacturer's guidance before charging in a very hot environment.