Lilliputian Systems says its portable fuel cell will provide juice for your smartphone a dozen times before running out.
More energy is spent on user tracking, GPS, and other functions than your game play, researchers find.
In spite of Apple's claims, PCWorld Labs tests show that the new iPad doesn't match the iPad 2 in battery life.
Apple bumped battery size and output by 70% in the newest iPad, but the tablet is thirsty for that extra power; here's how to squeeze out some extra juice.
Researchers found that third-party advertising in free apps can be responsible for as much as 65 percent to 75 percent of an app's energy consumption.
Learn how to make your current battery last longer and shop smarter when the time comes to replace it.
Inside, the new iPad is basically a giant battery, with the electronics neatly arranged around the side.
MikroPC, which is PCWorld Finland, put a number of phones through cold testing to find out which work best when the temperature is below zero. Hint: If you live in a very cold area, you might not want the Apple iPhone 4S.
HP and the Consumer Product Safety Commission issued the recall. Here's a list of the affected devices.