quality of distilled water for battery 1

[godel123]

HI

what is the standard for the salinity of the distilled water used for batteries?

 

[BigInch]

Well there you go. I was pretty sure that distilled water had NO salt.

"People will work for you with blood and sweat and tears if they work for what they believe in......" - Simon Sinek

 

[Latexman]

Distilled water is used to "zero" refractometers, since it contains no salts. Not detectable. ND. Nada. Zip.

Good luck,
Latexman

 

[godel123]

distilled water with tolenrance range of conductivity is used in batteries.
my question is about the tolenrance.

 

[MiketheEngineer]

None is best - but if it is distailled - won't that be so??

I use plain water in my battteries - nver had a probem!!

 

[godel123]

thanks for all

 

[EdStainless]

conductance will vary based on both impurities and dissolved gases.
If you are diluting acid for initial fill then I would be more picky.
I would use 5uS as a limit if someone wanted a number. This water can be either distilled or deionized.

If you live where you have soft water naturally (not through a softener) it would work fine for top off.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

 

[hacksaw]

5 ppm as chloride is the usual limit for lead acid batteries - believe that translates into less than 2 microS/cm conductivity. good distilled water is less than 0.1 microS/cm

if you want your batteries to last as in station batteries, tap water is not a good idea unless you have a treated water RO system in place. Tap water is okay for consumer use, but it does shorten battery life

 

[rmw]

Well there you go. I was pretty sure that distilled water had NO salt

Depends on what type of water is being distilled. Seawater stills to typically have some small amount of salt carryover. That is why they have salinity cells on the distillage lines which dump the distillate if the carryover gets too high.

rmw

 

[BigInch]

What's the carry-over mechanism?

"People will work for you with blood and sweat and tears if they work for what they believe in......" - Simon Sinek

 

[hacksaw]

carry over as in the case of triple effect distillation of salt water with steam ejectors. Common risk in desalter units for plant water needs

 

[BigInch]

Then that's desalted water, not distilled.

"People will work for you with blood and sweat and tears if they work for what they believe in......" - Simon Sinek

 

[godel123]

is there a document or indication from a manufacturer about the tolerence in conductivity to use in batteries?

 

[hacksaw]

wiki has a good summary with pertinant standards listed, good luck

 

[godel123]

thanks for all

 

[bimr]

Distilled water is any water that has many of its impurities removed through distillation.

The question that you should be asking is what is the "Recommended Maximum Allowable Impurities in Water for Battery Use".

http://www.trojanbattery.com/pdf/WP_EffectOfImpurities_0612.pdf

So here are the limits for elements commonly present in drinking water:

Ca 40 mg/l
Mg 40 mg/l
Total Soilds 100 mg/l
Nitrates 10 mg/l
Zinc 4 mg/l
Copper 5 mg/l
Iron 3 mg/l

I would doubt that anything labeled as "distilled water" would have any difficulty meeting these requirements.