The '71 & '72 Buick A-bodies came with side terminals for battery cables. Suppose u want to install an electric fan or a boom box and instead of having to purchase a new battery with top terminals or top terminals & side terminals, is there another solution and retain the orig battery style?
My local parts store carries a power tap. It has spade terminals to connect. https://www.amazon.com/Battery-Side-Circuit-Power-Push/dp/B004J3RF20
But usually, the connection is a solid cable that would connect to the positive post battery connection.