questions on 1/4" impact driver and 20v batteries

Hey there, I am looking for a 1/4" impact driver to go with my 20v Max drill. I see a refurbished unit for $70. That can run the same batteries as the drill right?

Second question, I assume buying the 60v batteries is a waste of time. But what batteries should I get that have a bit more juice than the ones that came with the existing drill? Will try use the same charger I already have?