Well this would be a totally different thread as this is the first trip I would be doing that is totally digital. Now before I shot all my trips using film and after 3600 pictures I still was using the same set of batteries on my 4 cameras. Now I'm digital bound and need to find a solution. I was looking into solar pannels but that is a no go so far. Problem is all the chargers are integrated (need houshold current) so I need an outlet and cameras are using special lithium ion batteries so I can't get just pleanty of rechargables. That sucks.