Wind-Up Charger

I recently acquired one of these as a birthday present and we've used it to charge both my son's and my mobile phone. Admitedly the winding handle could do with an extension to make it easier to hold but it does work. However you'd need to wind a fair bit to give a full charge, nevertheless they reckon than 3 minutes winding is worth a couple of hours standby and a few minutes talk. So it may be just the thing when going away somewhere like Greenbelt -or any camping or 'middle of nowhere' thing really.