Here's something very handy that arrived in the PC World bunker just in time for the holidays. The Powerstick is a portable charging device that houses its own lithium ion battery and can be recharged via any USB port.

We've had plenty of those mobile chargers that take an AA battery across our desks, but the Powerstick goes one better with its rechargeable battery. Coincidentally, my Blackberry Pearl was red-lining just as the Powerstick arrived so I put it straight to work. It very nearly juiced the Pearl all the way to full, missing by just smidgin. Still, plenty of power to make any calls or texts until I could next reach a charger.
A bundle of swappable charging leads are provided for all types of phones and iPods and the mini USB and micro USB leads could no doubt be put to use on other devices like digital cameras.
The Powerstick itself charges quickly via the USB port concealed beneath its end cap. At $79 and with a claimed ability to retain a charge for up to six months, the Powerstick could be just what you need in your glovebox or bag this summer.
Check it out at powerstick.com