here in the USA...
Although there is a an enormous selection of "extra" external battery type devices (Mine is 22Wh) , you can buy actually AA-2-$Phone adapters. I have never seen them in the UK, but they sell them in Walgreens/CVS.
VERY useful for festivals where finding a wall plug is, well, not the point...;-)
P.
Biting the hand that feeds IT
