Cordless Impacts

[Dad's72]

With the age of our beloved prefect in every way trucks. What are y'all using to convince hardware that hasn't been removed in the past 40-50 years to break loose? I have a decent air compressor that can run air tools but it is god awful loud. I have an air ratchet, 3/8 impact, and a 1/2 impact. However, they all need a tune up. They leak air and because of the leaks aren't as powerful as they should be. They are all pretty old. They were my dad's when he worked on the flight line at Bergstrom AFB.
With that being said I am thinking about getting a 3/8 impact that is battery operated. Hell, I'd settle for a corded one asst this point. Looking for suggestions.
Thanks in advance.