China's Sooall gives exercise an eco edge, letting you charge your batteries while you pedal away.
Commentary: Today's smartphones are incredibly sleek, well-designed electronic devices except for two glaring issues. Maybe someday that will change.
Pebble's back with a color smartwatch, but how different is it from previous Pebbles? Scott Stein's worn one for a week, and he looks at what's new and whether it's worth getting.
It's always good to have extra battery power in your pocket. Get some with this week's prize, a portable pack from Ventev that can charge two devices at once.
The battery life on the Apple Watch will last you about a day. Here's you can squeeze some extra juice out of it.
This slightly updated Air may run longer, but it's no longer on the cutting edge of design.
The Powerwall for homes and Powerpack for businesses can store energy from solar panels and help you save on energy bills.
CNET's Dan Graziano shows you how to squeeze some extra juice out of your new smartwatch.
The Powerwall battery back-up system, introduced by Tesla Motors, can store electricity generated by solar panels or taken from the grid during off-peak hours, then power appliances and devices in a home.
The new phones offer a couple new features that make sure your phone lasts all day.