We all keep at least a couple of battery-powered gadgets on us every day, including a phone, a pair of headphones or earbuds, ...

Don't let a dead battery ruin your day. This smart Bluetooth gadget alerts you before your car dies. Stay ahead of car ...

If you have a drawer or box full of old batteries that may or may not be working, this gadget will help more than testing ...

Battery life has been one of the biggest bottlenecks in modern gadgets, from phones to wearables. Now, researchers have developed a new lithium-ion battery design that could dramatically change that ...

Upgrade your commute without emptying your wallet. From fast-charging hubs to wireless mounts, here are four cool Walmart car gadgets under $20.

There's never an outlet around when you really need one, is there? Phone and laptop batteries have reached a place where most devices can last close to a full day on a single charge, assuming you ...