I wasn't thinking of using a solar battery charger-like people have said those things are iffy at best esp. on the AT. I was thinking more of just recharging them in town or having them charged at home and cycled through with each resupply (have a couple sets and send the depleted batteries back to be recharged and then sent back to me and so on.)

I keep forgetting that on the AT you are not entirely removed from civilization. In the time I have spent in Wyoming, I was gone from creature comforts for a month at a time. Perhaps it would be easier to leave the baking stuff behind...