Energy...

Have you already made the switch to recycleable batteries? Good, we knew that you did. We were just checking.

But here's another question: are you getting tired of carrying a battery charger with you when you travel, or searching for your charger when you need it every few months?

Moixa Energy has a solution. Their new USBCELL rechargeable batteries come with what you might call a pop top -- one end of the battery swivels off to reveal a USB plug. Just hook it into any USB port on a PC or laptop and your computer does the work of recharging the battery!

According to a recent article at GreentechMedia, there is a small cost to pay for this convenience: the USB plug takes up space that would normally hold power. As a result, the USBCELL holds 1300-1500 milliamp hours, as opposed to the 2500 in a regular nickel metal hydride battery.

Oh, one other possible inconvenience: USBCELL comes with a bit of software that could, depending on how it is configured by the manufacturer, pop up ads or energy-saving tips on your PC every time you plug the battery in.

So far, Moixa's batteries are only available in AA size. They ship from the UK, and run £10.99 for a set of 2 batteries (with delivery, that translates to $20). You can also get a "gift set" of 20 batteries for about $165.