Emergency chargers are pretty useful, and every sane person should definitely own one. With that being said, Iogear has recently presented the GearJuice Rescue Charger.

The small yet powerful charger is suppose to give an extra 15 minutes of battery life to different types of gadgets, like cellphones, portable media players, and anything else you can imagine. The only problem seems to be the connection interface - mini-USB - which might not be compatible with the device you want to charge, but I bet there is an universal adapter somewhere.

What is the energy source of the GearJuice Rescue? A normal AA battery.

Just say goodbye to the boring scenarios of having no battery on the cellphone - grab a couple of AA batteries, and spend $12 on this special charger.

Its compact design makes it easy to slip into your pocket, laptop bag, or backpack where it is readily accessible for use in situations where mobile power is necessary.