Battery Desulphating and rejuvenating

[xaccto]

see this thread where I publish the design of my circuit for this purpose
#1287891

thus far I cannot report any real success with sealed lead acid type batteries.

Just wondering if anyone has any comment or something to report regarding this topic on this forum.


If you don't know anything about battery sulphation - just google.

The de-sulphator pulses is supposed to knock off the sulphate crystals from the plate
and back into the solution - thus extending battery life, or even rejuvenating a previously dead battery.

It is only applicable to lead acid batteries (I think) and it might be mostly applicable to
wet cell types, not gel cell types - which is probably what I am seeing given the battery types i've tried this with so far.


thanks
[/b]

 

[pranam77]

I am using a self made de-sulphator even today and my lead-acid battery 12V 120Ah what i use for my inverter of 500Va, last almost 6years plus with full efficiency. But i never had an opportunity to try the desulphator on any dead battery and see wether i can rejenuate it. The circuit is always connected across the battrey terminals, with the charger in parellel. I too think this technique works fine with lead acid types only and not with gel types. But it works for me and i have see the results.
Cheers

 

[dick_freebird]

I have seen people recommending physical flushing to get rid of
the bottom sludge, which is sulphate primarily I guess, and then
replacing the sulfuric acid with another electrolyte (EDTA sodium?).
It seems to work on some plates and not others, perhaps having
to do with the presence or absence of calcium, antimony, or
whatever.

Electrical de-sulfation with a "zapper" is only going to remove the
plate-plate whiskers. It won't do anything for a sludge-bed
that shorts plates, or for loss of plate surface area from deposit
/ film.

At any rate I think you should begin with a physically cleaned
battery and then go knock off any filaments that remain.

 

[xaccto]

what kind of battery allows you to "physical flushing to get rid of
the bottom sludge," ?
where would you get one?

aren't most like car batteries ? not the maintainence free type, because they
are almost like sealed - might allow emptying of acid and replace,
still would be mighty difficult without making a mess.