Battery woes..

[driven]

and here is supporting evidence

F1 and V8 Supercars used sealed Braille Batteries.
NO nasty acid in your face when upside down on side of track
Braille

 

[1972Ren]

And if you go blind from acid in your eyes anyway, you can still read the brandname. Win Win

 

[JohnW]

When I was a young sprog in Bendigo, the father of my mate Bobby Jarvis ran the Bendigo Battery Hospital and in his backyard there was a large canvas inverted tent top to catch rainwater and funnel it into those old large pottery style Chemical jars. That was his source of pure rainwater for use in topping up batteries. for what that is worth..

That would be fairly close to distilled water. There's been quite a bit of work done on the dissolved salt content of Australian rainwater over the years - it is surprisingly high close to the coast but drops to a few parts per million inland. These days there are so many AC units on houses it is easy to collect.