This might have been posted here. But I m just posting it for those who don't know about this deal from 99p stores.
This is a Emergency Charger for Motorola phone(According to Packaging). But I believe you can also use this charger for any phones with mini usb port such as Blackberry, Google G1 and HTC phones.
As you can see in the picture, the charger comes with qood quality 2 x AA Lithium batteries.
I saw the similar ones in Morrisons and Asda. They are retailling between £9.99 to £15.99 . At the moment, 99p Stores are selling this for 99p. So I think this is a good price. You can't go wrong for 99p.