Here's how to test a CR2032 battery to see if it's good

CR2032 batteries are found in a lot of gadgets around your home.

The short version

• They're easy to test when they run low, especially if you have the appropriate devices.
• Your car key fob suddenly needs several presses to unlock the door.
• Your AirTag stops responding when you try to locate it.

What happened

Before blaming either gadget, it's worth checking the battery inside. One common type is the CR2032, a 3V lithium coin cell also used in Samsung's SmartTag2 and some smart home sensors .

Why it matters

Depending on the device and how often it's used, one can last way over a year.

Summary by Nerd News Network. Read the full article at Engadget via the links above and below.