Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Miscellaneous Techniques › Help! I’m making a documentary and need help. › http://www.canadiantire.ca
http://www.canadiantire.ca/browse/product_detail.jsp?FOLDER%3C%3Efolder_id=1408474396674307&bmUID=1206066011971&PRODUCT%3C%3Eprd_id=845524443281438&assortment=primary&fromSearch=true#ProductRR – this is a portable solar panel with a standard 12V lighter outlet. May be useful if you want to carry a charger as well.
I have travelled a lot as a news cameraman, but never on foot. So I never actually travelled without a charger. I would do everything to have a charger on a trip.