No battery acid is too thin and will not stay in place plus there's not enough sulfuric acid in the liquid to do the etching.
Car battery acid consists of Hydrochloric acid and Sulphuric acid.
Car or automotive battery acid is 30-50% sulfuric acid
A car battery has sulfuric (sulphuric) acid in it.
It's an acid.
acid
The pH of car battery acid is normally around 1 (extremely acidic).
Lead - acid
It is sulphuric acid.
It's an acid.
Sulfuric Acid
Sulphuric acid
sulphuric acid