Where to buy battery electrolyte/acid?

[Cooked Rice]

I bought a compact lead-acid battery for my turbo project. They didn't supply enough electrolyte to fill the entire battery though. Where can I find a small bottle of battery/sulfuric acid?

[5000Audi]

i know bumper to bumper sells the big box's so i dunno give them a call and see if they sell small ones

**EDIT**

or you could just top it off with purified water?...

[bawlls]

take apart an old car battery?
porbly not the safest idea, but it will work...

[Cooked Rice]

No, you don't want to use old electrolyte.