[Oeva-list] marine batteries for EVs..

Steve's Account stevel at fern.com
Wed Oct 15 19:05:34 PDT 2008


> Nev Okyay wrote:
> > In the case of car batteries (lead-acid type), if
> > they are discharged closer to zero percent level, it
> > is not possible to bring them back to life and they
> > would have to be thrown away.  If true, this would
> > explain the reluctance of most people not willing
> > to go less then 60-70% discharge level.
> >
> > A reliable source told me that in the case of marine
> > batteries, it is possible to go down to zero percent
> > level and bring the battery back to life up to 20
> > (twenty times).  I think this feature would make
> > them better choice for EV conversions.
> >
> > I haven't talked to anybody in the club using this
> > type of battery.  Does anybody have any experience
> > with marine batteries?
> >
> > thanks,
> > -nev

A quick look at the depth of discharge vs cycle life of a representative
battery will show why you don't want to take your batteries down by more
than about %50.

<http://www.interstatebatteries.com/estore/resources/links/Specification_Sheet/SLA1176.pdf>


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