Any complaints about the lack of AA's are foolish.
Spend a few moments to open your mind to possibilities:
http://store.sundancesolar.com/index.html
solar panels
dynamos
battery packs
If you sacrifice a little immediate convenience to figure it out, you get:
improved convenience
saved$$
ability to stay out as long as you want
You also have a gasoline powered generator with battery storage (car) available to you for charging, instead of leaving your campsite to run to the overpriced store for batteries....but you will still want to get an icecream....but now you can buy 3 icecreams..............................
You are now more free, take advantage of it!