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.
Logitech's first stab at an iOS game controller nails design and feel, but lacks flexibility or extra features.
Once the battery of your shiny Apple gadget falls to 80 percent of its original power, the company will replace it.
A core component in the rumored next iPhone will be a new Qualcomm-developed LTE chip that doubles its maximum potential Web-connectivity speeds, according to a new report.
If you can live with the Innergie PocketCell's price, you're getting one of the better -- and more versatile -- portable chargers.
CNET highlights eight impressive smartphones that showed outstanding battery life in our labs' performance tests.
Provided you can afford it and it's compatible with your gadgets, the PowerMat Dual 1850 Rechargeable Backup Battery is a fresh, efficient, and convenient way to charge multiple devices when at home and on the go.
CNET's Dan Graziano gives you a first look at Epson's first GPS-equipped running watch.
Apple rolls out new battery improvements in iOS 9 that promise up to three additional hours of juice on compatible devices.
CNET finds out first in a fascinating new infographic that sums up the power needs of various gear from "Star Wars" in very 21st-century terms.