Portable rechargeable battery pack for Ipod, Phones, PSP, Gameboy.
4800mAh battery pack
Mains charger for battery pack, can be charged and recharge a device at the same time.
Lot's of adaptors for PSP, Gameboy, Nokia, SE, Samsung and USB
Available instore and online, normally £29.99
More details here http://www.recharge4.com/