I had initially intended to discuss batteries in the same posts as chargers, but as it lengthened over a few days' composing, I decided to separate but post them at the same time.
I already mentioned I chose rechargeable nimh batteries instead of li-ion ones, for ecological, budgetary and availability reasons, and detailed as much as I could my 2 current chargers, with an emphasis on a maha c-9000 which I use far more frequently.
While searching for a candidate camera, most models in my budget had Li-ion batteries, with small autonomies and short shelf-life, in a consumerist mindset. I learned that these batteries allowed fewer photos than their DSLR counterparts, and far fewer than AA Nimh batteries.
Most importantly, these lithium based batteries are far more damaging to the environment and they get thrown away faster (overall) than nickel-cadmium hybrid (=Nimh) batteries.
