Re: (ET) Deep Cycle Battery Question

["David Roden" <etpost drmm net>]

On 26 Jun 2006 at 11:51, Klein Robert W NPRI wrote:

> I've had the battery off charge now for a couple of days
> and when I put my ear close to the battery I clearly hear the bubbling.

I've had batteries that, days or weeks off charge, still seemed to be 
gassing a bit.  There's no internal mechanism I know of that will cause 
disassociation of hydrogen and oxygen without external input, so I think 
that this is gas trapped as bubbles in the separators that gradually works 
its way out.  

Come to that, it seems as if it might have been more prevalent in the 
older 
batteries suffering from positive grid corrosion and mossing, but I'm not 
sure about that.


David Roden - Akron, Ohio, USA

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