I'm looking for a portable phone charger, the kind you end up paying £10 for when your phone runs out of batteries halfway through a festival etc. I've checked out DealExtreme, but can't seem to stick the correct search terms in as I'm coming up blank.
Can anyone help me out? A wind-up, universal charger would be ideal, but if that's a little hard to come-by then batteries and just a mini-usb cable would be fine. :)