Is sulfuric acid the same as battery acid?

Well, honey, technically speaking, sulfuric acid is the main component in most car batteries, so yeah, it's a big player in what you might call "battery acid." But if you're asking if they're exactly the same thing, well, not quite. Battery acid usually refers to a diluted form of sulfuric acid used in car batteries, so it's like saying a margarita is the same as straight tequila - similar, but not quite.