Distilled water VS Battery acid :doh: - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 19 (permalink) Old 03-10-2009, 11:02 PM Thread Starter
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Distilled water VS Battery acid :doh:

allright, I am confused here...what is the difference between distilled water and battery acid.
According a mecanic guy, i am supposed to use distilled water to top off the liquid level in the battery. Use battery acid only if the level is really low.

Any idea?

Thanks

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post #2 of 19 (permalink) Old 03-10-2009, 11:07 PM
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if you spill battery acid on your self it's bad.. if you spill distilled water on yourself, it's not bad :-P

distilled water doesn't have any ionic charge- it's neutralized. it works to increase the level of 'acid' when still between the low and high marks. The only need for adding new battery acid is if you drop way down- say the battery tipped over and leaked.

I may be wrong... but that's what I'm thinking...

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post #3 of 19 (permalink) Old 03-10-2009, 11:10 PM
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after a battery charges, the electrolyte levels change in the acid...adding more acid dilutes the electrolyte levels and makes for a weeker charge... adding distilled water adds electrolytes insted of diluteing them...tap water adds deposites and corrosion to the plates.
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post #4 of 19 (permalink) Old 03-10-2009, 11:30 PM Thread Starter
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If feel better now...that's what i thought too...
Thanks guys.
The source of my confusion is coming from the french (my native language- some of you might have noticed my grammar), battery acid = distilled water, even thouh everyone knows distilled water isn't acid ....i m getting confused again LMAO

anyway...thanks

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post #5 of 19 (permalink) Old 03-11-2009, 02:01 AM
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Not to add to your confusion, but...

Distilled water does not have any electrolytes, it's simply H2O, hydrogen and oxygen, nothing more. That's good because, as slimvulcanrider stated, there's nothing to deposit on the battery plates like tap water has.

Battery acid is sulfuric acid. You would normally only add this prior to initially charging the battery when you first bought it. After that, just add distilled water when the levels are low. The only other time to add sulfuric acid is if a particular cell has a very low specific gravity even after being filled with distilled water above the low line and then fully charged, and that means you would need to check the specific gravity of the fluid in all the cells. Most of the time, however, the reason a battery fails is not because of low acid levels, but because the battery has become sulfated or has filled with sediment and therefore has shorted out. Adding sulfuric acid won't help a shorted out battery.

By the way, every time you connect a charger to a non-maintenance free battery, the kind with the vent tube, the battery looses some fluid through the vent tube. So frequently charging your non-maintenance free battery, even with a battery tender, will make it even more important to check your battery fluid levels at least monthly. Otherwise you will find yourself stranded with a dead battery that you just charged.

It's much easier to simply replace the stock battery once it fails with a maintenance free glass mat battery. You won't have to worry about checking the specific gravity and this battery will hold a charge longer. There's practically no chance that this battery will spill acid all over the delicate electrical components near the battery case, and you will be less likely to be stranded somewhere because you didn't check your battery fluid levels every month.

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post #6 of 19 (permalink) Old 03-11-2009, 03:54 AM
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Nice write up Ruby wouldnt/couldnt have said it like that



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post #7 of 19 (permalink) Old 03-11-2009, 11:26 AM
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Quote:
Originally Posted by slimvulcanrider View Post
after a battery charges, the electrolyte levels change in the acid...adding more acid dilutes the electrolyte levels and makes for a weeker charge... adding distilled water adds electrolytes insted of diluteing them...tap water adds deposites and corrosion to the plates.
X2 do not add acid

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post #8 of 19 (permalink) Old 03-11-2009, 03:21 PM Thread Starter
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Great tips guys, merci beaucoup!!!!Thanks!!!

PEACE!!!

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post #9 of 19 (permalink) Old 03-11-2009, 03:32 PM
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Another advantage of the MF or AGM style battery is it has a lower series resistance than a standard wet cell so it needs less current from our precious charging system to get recharged. This lower series resistance also helps keep the battery cooler as it does not "create" as much heat when charging. Since the R/R is bolted to the battery box........

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post #10 of 19 (permalink) Old 03-11-2009, 05:20 PM
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Quote:
Originally Posted by 93VN750 View Post
Another advantage of the MF or AGM style battery is it has a lower series resistance than a standard wet cell so it needs less current from our precious charging system to get recharged. This lower series resistance also helps keep the battery cooler as it does not "create" as much heat when charging. Since the R/R is bolted to the battery box........

Jon
I did not know this, Jon. thanks for the info.

X2 to 99, rubyrick, and niterider above. You should only ever need to add DISTILLED water to your battery. Needing to add more sulfuric acid would be an exceptional case, as outlined by rubyrick.

You will also avoid corrrosion and sediment or calcium buildup in the radiator of your bike, (or car), if you only use distilled water in it as well. FWIW

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