For example, in a classic zinc-carbon battery, zinc metal at the anode is oxidized to zinc ions. Cathode (discharging): These electrons then flow to the cathode through an external circuit ...

External USB/Thunderbolt drives (aka direct-attached storage, or DAS) are a super-convenient way to quickly back up your important files, as well as store any data that you don’t need on your ...

Copyright 2025 The Associated Press. All Rights Reserved. Actor Gene Hackman arrives with his wife, Betsy Arakawa, for the 60th Annual Golden Globe Awards in Beverly ...

A car’s battery powers everything from starting the ignition to running electronics. But over time, the battery can lose its charge and experience a dip in performance. A typical sealed lead-acid (SLA ...

Desktop-size and portable platter storage has never been cheaper. Our deep-dive reviews help you track down the right external hard drive. Since 2004, I have worked on PCMag’s hardware team ...

Despite the popularity of slim, speedy external SSDs, external hard drives are still essential, cost-effective storage. For as little as $50, you can add a terabyte to your laptop or desktop by ...

Is your phone, tablet, or laptop typically in the battery red zone before the day's end? These portable chargers and power banks give you the most boost when you're out of juice. I’m a Mobile ...

If you had asked me a half-a-decade ago what I considered to be the weakness of modern smartphones, I'd have said the battery life. Phones used to last hours at a time, and you'd have to find a ...

We list the best Fujifilm lenses for all kinds of photography, whether you're into travel, close-ups, wildlife or portraits The best Fujifilm lenses are some of the finest lenses in all of photography ...

Few names in the automotive world evoke luxury and prestige quite like Cadillac. For over a century, the brand has maintained a global presence while staying true to its American roots, producing ...

Clean and efficient world class above everyone else in the industry The 2021 Cadillac XT4 price depends on several factors, including the trim level, optional features, mileage, vehicle history ...

This bevy of battery-powered cars in the pipeline, meanwhile, functions as the brand’s trickle-down technology launchpad. The refreshed XT4 is a perfect example of this, offering buyers a crack ...