Is it OK to add reverse osmosis water instead of distilled? I believe RO leaves behind slight amounts of minerals, but distilled might leave behind a few chemicals too, like chlorine. So is it 6/half a dozen? Or is distilled the only way to go? Also, is it possible to revive a dea…

The water may not matter much. If your battery is not old and I don’t know enough to say what is old for various lead acid battery types, your battery may be sulfated. Google “Sulfated battery” and do some reading. I have a problem battery too and don’t know enough at this point to advise a way t…

Reverse osmosis water is fine. Well water with lots of lime in it is not. If the dead battery is still good, it will be revived. If it won’t take a charge, you will know what the next step is. The battery does the decision making in any case. The distilled won’t break the budget, so why use anythi…

RO water is fine…Automotive batteries don’t last long enough or use enough water to make any difference… Few “dead batteries” will revive…You can TRY to charge them, try 5 amps for 10 hours…Then perform a load test. If the voltage drops below ten and does not instantly recover to above 12, the batt…

you can use clean rainwater too-Kevin

You can also use clean rainwater-kevin(got a double post sorry)

do not attempt to change the fluid in your battery at home. This is for a used re-built battery shop to do, just like cleaning out the cells etc. I would not use rain water either, these days you dont know what might be in it. The air is full of stuff, and anyway raindrops form around dust motes.…

“I would not use rain water either, these days you don’t know what might be in it” -Yeah, it would suck to get acid rain in your battery. LOL

OP, you never, ever add anything other than distilled water to a battery that has already had electrolyte in it. By dumping what’s in there and refilling with fresh electrolyte you will be upsetting the acid/water ratio in the battery when the charging process starts.

No, reverse osmosis can not/does not remove all the dissolved chemicals. Distilled water always removes all dissolved chemicals. “Catch” rain water can be used since it has been distilled (evaporated) naturally by the sun. Go buy yourself a gallon of distilled water at the supermarket for $1.50. Th…

Reverse Osmosis water in battery

Maintenance/Repairs

MikeInNH May 21, 2010, 12:44pm 11

RO water is just highly filtered water. It’s about 98% pure water. Distilled water is 99% pure water. Distilled water is created by actually boiling water…then funneling the steam through pipes into another container where there’s nothing left but pure water. All the other contaminates were left behind because they were too heavy.

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Reverse Osmosis water in battery

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