Rechargeable batteries are now used everywhere, from smartphones to electric vehicles. They’re convenient and more environmentally friendly, and they’ve come a long way in capacity and performance.

Sudden shutdowns got you down? Battery life next to nil? iPhone feels like it's on fire while charging? I've got fixes. Matt Elliott is a senior editor at CNET with a focus on laptops and streaming ...

Nissan has thrown down the warranty gauntlet to other EV makers by announcing it would be the first to "restore" battery capacity if a Leaf's full charge fell below 9 out of 12 "bars" within 5 years ...

If you've noticed that your Switch 2 is dying before the battery percentage drops to zero, you're not alone. Nintendo has confirmed the battery charge indicator is not working correctly on some Switch ...

Nintendo has provided instructions for how to fix the Switch 2 battery charge indicator issue This solution is for "for when the battery amount displayed and the actual remaining battery use don't ...

Over the years, Windows has gotten progressively better at laptop power management–but it still doesn’t tell you much about your battery. Enter BatteryBar, a free, easy, ingenious power gauge that’s ...

There are times we are confused about the actual state of our laptop battery. It may show battery power for 3 hours remaining, but drains within 2 hours of use. The accuracy of what the battery meter ...

You can add one in the form of a live tile, but it's a little tricky. Here's how! Rick Broida is the author of numerous books and thousands of reviews, features and blog posts. He writes CNET's ...

Windows OS makes use of a feature of modern laptop batteries which have circuitry and firmware that can report to Windows the overall health of the battery. This is reported in absolute terms as ...

How far should you trust any of those battery "gas-gauge" ICs, the circuits that drive the remaining-battery-life displays on portable devices? Today, it's something ...