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Popsie's avatar
Popsie
Explorer
Jul 26, 2014

deionized water versus distilled water

I was watching a TV show about a family living off the grid in Australia.

They had a solar system for generating electricity.

The fellow made a point of saying that they had to use deionized water in their battery bank.

I've always used distilled water (from the grocery store) in my lead-acid batteries.

What's the difference between distilled water and deionized water, and would deionized be better for use in lead-acid batteries?

If it's better, where do you get deionized water?