XPost: alt.home.repair, sci.electronics.repair   
   From: rod.speed.aaa@gmail.com   
      
   On Thu, 19 Jan 2023 03:09:25 +1100, Peter   
    wrote:   
      
   > Mighty✅ Wannabe✅ <@.> wrote:   
   >> You can make do with rain water or tap water to top up the lead-acid   
   >> battery but doing it too often will accumulate too much impurities in   
   >> the battery fluid.   
   >   
   > I say from the start that I'm only "reasoning" this out, purely   
   > theoretically, so while I'm sure adding tap water with high calcium   
   > carbonates will add "some" impurities.   
   >   
   > Your use of "too much" is what bothers me, only because I've never seen a   
   > single reliable source that tested this for the five year life of a   
   > battery.   
   >   
   > I'm sure someone tested it - but I've never seen those tests, where my   
   > assumption, without those tests, is sure, "something" will be added, but   
   > will it make any difference in a twenty-five pound battery designed to   
   > last   
   > only five years?   
   >   
   >> You can make do with distilled water but that is not as good as   
   >> deionized water, which technically should be processed from distilled   
   >> water.   
   >   
   > Again I'm only reasoning this out, and I would back off on my rationale   
   > the   
   > instant someone shows me batteries being harmed by rain water, which is   
   > distilled water nowadays, despite the "acid rain" scare tactics of some.   
   >   
   > The Indian "Microsoft support techs" tried to pull the same scare tactics   
   > on me that the pool stores do, where they take a single tiny event and   
   > turn   
   > it into the explosion of the Maine in Havana's harbor.   
   >   
   >> A responsible auto shop or car dealership should use deionized water to   
   >> dilute the sulfuric acid to use as battery fluid.   
   >   
   > A commercial outfit will always follow industry standards if they're   
   > reputable (most are not, in my humble opinion - most are scammers).   
   >   
   > That's why you never believe anything coming out of the mouth of someone   
   > selling you a service without checking it (for example, they'll tell you   
   > that you "need" a fluid change when the owners manual will disagree).   
   >   
   > They're all scheisters in my book - and I've been sheisted by them so I   
   > know this for a fact that some are sheisters who can't be trusted.   
   >   
   > Back to this topic, how do you know that the "pure" water isn't leaching   
   > out all the good paste on the plates, now that it's devoid of ions?   
      
   Trivial to test that by weighing the battery before and after.   
      
   > I'm not asking this as a challenge - as the basic logic is sound.   
   >   
   > What I'm looking for is a real answer to the practical question of how   
   > much   
   > could it possibly matter in a twenty-five pound battery designed for a   
   > short life in what turns out to be miserably inhospitable temperature &   
   > vibration conditions, not to mention discharge recharge redox cycles.   
      
   The reality is that modern cars use sealed batterys and no one   
   adds any water to them anymore.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)