Unconfirmed media reports say Nancy Guthrie's pacemaker stopped syncing with her Apple devices. Here's what that means.

Information about Nancy Guthrie's pacemaker helped authorities piece together a new timeline in her kidnapping. Can the devices track you?

As the search for Savannah Guthrie's mother, Nancy, continues, a cardiologist explains how pacemakers work and if they can be used to track a missing person's location.

By Gina Kolata Like an estimated three million Americans, Nancy Guthrie, the 84-year-old mother of the NBC News anchor Savannah Guthrie, has a pacemaker implanted in her chest. Law enforcement ...

Testing your battery regularly will prevent a dead battery from ruining your day. There’s only one way to answer the question, “Is it my battery, or something else” when your car won’t start: Hook up ...

You can run a report to check battery health in Windows 11. This report provides details on capacity, cycle counts, and more. If your battery is nearing the end of its life, it can be replaced. Have ...

The RIT Battery Development Center (BDC) is a state-of-the-art research and rapid prototyping and testing facility focused on the development and qualification of emerging energy storage technologies ...

Matt Elliott is a senior editor at CNET with a focus on laptops and streaming services. Matt has more than 20 years of experience testing and reviewing laptops. He has worked for CNET in New York and ...

More than six months after the launch of the iPhone 12 series, Apple unveiled a new first-party MagSafe accessory in the form of a wireless battery pack. The MagSafe Battery Pack has a 1,460 mAh ...

Smartphones have become the lifeline of our professional and personal lives, and we usually use them for emergencies, too. We understand how frustrating it can be to have smartphones dying in the ...

ZDNET experts put every product through rigorous testing and research to curate the best options for you. If you buy through our links, we may earn a commission. Learn Our Process 'ZDNET Recommends': ...

A dead car battery can leave you stranded, which can be inconvenient at best or downright dangerous at worst. In many cases, you can jump-start the vehicle, but that’s not always possible. Reviving a ...