16 hours of battery life for the MacBook Air

I have a MacBook Air. Although I can get about 5 hours of mobile use out of it by dimming the screen, turning off all wireless, and only running one app at a time, there are times I'd love to be able to stay unplugged for much longer. I could always get a solar charger, but that won't work well when it's dark out.

QuickerTek has announced the MacBook Air External Battery, a US$350 external box designed to let you run your MBA for up to 16 hours before plugging in. It's relatively small (7" x 3.5" x 1" — 17.8 cm x 8.9 cm x 2.5 cm) and adds 1.2 pounds to the weight you'll have to lug around.

In order to connect the external battery to your MacBook Air, you'll either have to send your existing MagSafe cable in to be converted for use (US$25) or buy a modified cable from QuickerTek (US$100). The final bill for the MacBook Air External Battery and the cable is almost as pricey as that solar-powered charger, but it's going to give your MacBook Air much longer battery life. Now if QuickerTek could just come out with a battery to let me play Monopoly (click opens iTunes) on my iPhone for 10 hours straight...