Times have indeed changed so fast. First, we used disposable batteries for our cameras. Then, we became a bit more hi-tech and had the 'convenience' of rechargeable batteries so, we won't have to always buy batteries. So, we ended up buying those battery chargers like maha powerex mh-c9000. And now, we got rid of the AA and AAA batteries and they have been replaced with lithium batteries that can be charged using a cable. That's when we said good bye to disposable batteries and then rechargeable batteries for our cameras.
I wonder what's next in line? Hopefully, they invent built-in batteries that could last forever without charging them at all.