The most important things to know when shopping for a cell phone.
At Mobile World Congress 2015, Samsung unveiled its newest smartphones, the Galaxy S6 and Galaxy S6 Edge, and they're packing tons of new features. Check out the top moments from the event here.
The new Galaxy phones have fast, wireless charging
The new Galaxy S6 and Galaxy S6 Edge sport similar specs, in slightly different shapes.
The Roost Smart Battery packages Wi-Fi connectivity into a 9V package. Put it into your old smoke detector, and you'll know if it sounds no matter where you are.
The design on this less-expensive version of the XPS 13 isn't as slick, but battery life gets a big boost.
Let's take a moment to celebrate the longest-lasting tablets currently at the top of our list.
The chipmakers both unveil new platforms to help smaller devices last a little longer.
Lawsuit claims iPhone maker hired away critical employees to staff a new battery division.
During an earnings call, the electric-car maker's chief technology officer says the company will unveil a battery for home and business use "fairly soon."