New battery acid/distilled water mix

[denson]

I just purchased two new batteries for my 1970 911S. They are shipped dry and without a kit for the acid/distilled water. I have never done the mix before and have received conflicting information. I have been told it is a 3 to 1 ratio of distilled water to acid, with the distilled water being the 3 parts.

I don't want to make a mistake here, so does anyone know if this is the correct mix?

Thanks for the help!

p/s I bought them at the Sierra Madre Collection and the cool thing is they are the real Porsche batteries. Kind of neat.

[davep]

I can't really help with the mix ratio, but I suspect that depends on the acid strength you can get.
However, please remember to always add the acid to the water, not the other way around. I recall that it is an exothermic process, and the body of water helps to spread the heat. There are many other considerations, but that is the primary safety requirement.

[RSTarga]

You should be able to buy prepared acid at a battery store or maybe an autoparts store. At the dealer they usually give you a bottle when you buy the batteries.
I can't imagine though , why anyone would consider using a liquid acid battery in their car. You will end up with rust in the front battery area and if not caught, in the pan.

[denson]

I found out that you add the acid straight and without any mixing with distilled water.