Devices

Phones, laptops and their little habits: batteries, restarts and the myths around them.

• Does closing all my apps save battery?

  Swiping every app away at 12% battery? It usually doesn't help, and can cost a little. Here's what really drains your phone, and what actually saves it.

• Why does turning it off and on again actually work?

  Laptop frozen two minutes before a meeting? Restart it. Here's why that fixes so much, why Restart beats Shut down on Windows, and what a restart can't fix.