These days most of us leave the house each morning with at least a couple of essential electronic gadgets in tow. The problem is that even with advances in battery technology, many devices don't quite have the stamina to make through a long day without sounding the dreaded low battery alarm.

The Helius backpack from V-Dimension can put an end to worries of dead phones and a music-less commute home, as it can provide your devices with a continuous trickle charge from its built in solar panel. Adapters let you connect just about any iPod, PDA or cell phone, and it even manages to generate a little juice under normal room lighting, so you won't have to lie out in some field for it to be effective. For those of us who moved past the backpacking student look a while ago, V-Dimension also makes messenger bag and laptop case versions. All three are available now for $129.95. — Michael Trei

Via V-Dimension