This advance civilization would probably be still using lead acid or alkaline since there is no incentive to do further. They would even be surprised at us putting lithium in our devices.
This advance civilization would probably be still using lead acid or alkaline since there is no incentive to do further. They would even be surprised at us putting lithium in our devices.
Reminds me of Fallout and how they have more advanced technology in some fields, but are extremely retro in others because they focused on nuclear energy instead of microprocessors.