On Sat, Dec 17, 2011 at 10:53:50PM -0500, SteveW wrote:
> Interesting concept, Ben but the first thing which popped into what's left
> of my mind is that it probably would only work well if the water in all
> cells dropped at the same rate.
I couldn't say, really, since I only saw a pic of it on a website, but
it seems to me that having a small chamber at the top of it - the one
that fills the "octopus" - would top up each cell as necessary, with
anything overflowing from one pouring into another until all of them
were filled (which you'd know from the fact that the chamber wasn't
draining anymore.) Just seems like it would be a necesarily obvious bit
of design if you were doing something like this.
> I've never found that to be the case in my
> batteries. It's probably a harbinger of a bad cell happening in the near
> future but I can see each cell boiling off the water at a different rate so
> that the octopus which fills all simultaneously would really work.
Yeah, a cell using water up at a faster rate usually indicates a cell
that's going bad. In my experience, they're pretty easy to diagnose with
a specific gravity tester (thanks to Norm for turning me onto just how
important those are in flooded lead-acids - it's like having an X-ray of
your battery's "innards"!)
Ben
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