If you mean the latest ISO, it is about the same for Nvidia GPUs as before.
But the updated application nvidia-inst should provide the driver recommended by Nvidia for your GPU. Please use command
nvidia-inst --test
to see if it recommends changing from Nvidia’s closed source driver to Nvidia’s open source driver. If in doubt, please share the output here.
Not sure what you could do for preserving battery, but the Arch wiki is a great source of information for that too.