You don’t want to replace a battery unnecessarily ... AAA, C, CR123A, D, 9V, N, CR2, CRV3, 2CR5, and CR-P2. This makes it a versatile tool that can be used in a variety of settings.

The best home safes keep valuables secure. We tested safes under $300 to see which offered the greatest protection from theft, fire, and water damage.

The best grill thermometer will help you cook meat to perfection. Check out how our top picks performed during hands-on ...

User-replaceable laptop batteries used to be common. You could even carry a second one for more juice. Now, though, it's ...

To replace an AirTag battery, press and rotate the stainless steel cover counterclockwise, remove it, and take out the old CR2032 battery. Insert a new one with the positive side up—your AirTag ...

With the new 62 kWh battery, the Nissan Leaf’s range was boosted from 107 miles (172 km) to an impressive 228 miles (366 km) on a full charge.

Inlyte Energy is reviving and scaling iron-sodium battery technology to create a safe, low-cost, and domestically sourced ...

Keeping your home safe doesn’t have to be complicated, but it requires little attention to detail. One of the simplest yet ...

You can replace your phone's battery yourself at home and save a lot of money. Here's what to do. Andrew Lanxon Editor at Large; Lead Photographer, Europe When he's not testing the latest phones ...