New Gadget 2011

Solar-powered laptop chargers always seemed a little mis-matched. Using a trickle of Sun-power to juice a thirsty computer is a little like running you big-screen TV from a trunk full of AAA cells. But tablets, which spend much longer away from power outlets, are perfect for solar power.

And the Spark Tablet Case is just the thing. The case, made from PET (recycled soda bottles), has a compartment inside for your tablet plus a bunch of mesh pockets for cables and other sundries. On the side are the solar panels, and these will fully charge the internal battery in ten hours (in direct sunlight).

That battery is the important part, as you could leave this hanging from your tent all day and then plug in your iPad when you get back from a long hike. The power comes out through two USB ports. Both provide 5 volts, one sends out 600mA and the other 2A. You can also plug in pretty much any other device using adapters, and the voltage can be stepped up to 12v for charging camera batteries.

It seems ideal for camping trips, except for the weight: at 1130 grams (around 2.5 pounds), you'll probably wan to leave this at base camp. Just don't forget to put it on a sunny rock while you're gone.

$300, available now.

Spark Tablet Case [Voltaic]