BatteryBar is one of the all-time great Windows freebies. But a mere $5 gets you the Pro version, which is even better.
Many of the sexy new Ultrabooks have batteries that are difficult or impossible to replace. If that bothers you, use these charts to check your model before you buy.
We may soon be able to say goodbye to the clunky laptop power brick and mishmash of proprietary device chargers, thanks to USB Power Delivery.
You may want to factor in this higher cost if you're considering buying Apple's sleek new laptop.
This could enable a new generation of GPS tracking, more advanced signal processing and more frequent and longer wireless transmission, the researchers said.
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.