I have long been a fan of digital cameras that could use AA batteries -- I could use rechargeable NiMH cells at home, and disposable Lithium AA cells on the trail. The Lithium AAs are really light, and last a long time, so I only need to carry one set for a weekend hike.
Now I am rethinking my use of disposable batteries. Frankly, I am wondering whether the envrionmental impact of disposables is worth saving a few ounces in my pack. NiMH and Lithium AAs cost the same -- about $2.50 each -- but the NiMHs can be recharged many times. The major drawback is lower capacity, so I have to carry at least one set of spares.
I'm certainly not trolling, or flaming anyone. I am simply rethinking something that I had previously decided. I would welcome any comments, or experiences with using rechargeables on the trail.
My new camera uses rechargeable lithium cells, which seem to last for several days at a time. I am carrying one spare (just in case), but I don't have the experience yet to judge how long I could hike without carrying a charger.
Thanks for your comments. I should add that photography is important to me, and I shoot a lot of pictures on a hike.