To replace an AirTag battery, you'll need a new CR2032 3-volt lithium battery, and it helps to have a pair of rubber gloves.

The WBT21 is also a watch battery tester with a big voltage display that will precisely test Silver Oxide 1.55V, Alkaline ...

Each Mickey’s Very Merry Christmas Party takes place from 7 PM to midnight on each of the party nights. Ticket holders will ...

While Mashable has yet to perform nuanced battery testing of our own, we at least have official spec sheets to go off of ...

Small flashing red lights and chirping sounds every 30 to 60 seconds can mean it’s time to change a smoke alarm’s battery. Some models may have a green flashing light or announce “low battery,” so ...

If you want to manage apps running in the background, open the Recent apps screen again and tap Active in background. You can then select the specific app you want to close. To optimize your phone's ...