Re: Even more homebuilt charger madness

["David Roden (Akron OH USA)" <roden@ald.net>]

On 31 Aug 2001, at 9:12, Rich Rudman wrote:

> > Read the Hawker charge recommendations and read the Solectria report on
> > using them.
> > 
> > Paul Compton
> > www.sciroccoev.co.uk
> 
> Anybody got   links to said info???
> 

You can find the Hawker EV manual at:

     http://www.hepi.com/lit.htm

It discusses the issue of minumum charge current, but rather obliquely. 

I, too, was told by a Solectria tech that their work with Hawkers 
revealed that the Genesis batteries need high current bulk charging -- on 
the order of 1*C10 -- to give good service life.  

This finding is referred to in a rather awkward and confusing way on this 
page:

     http://www.state.ma.us/doer/programs/ev/ev.htm

If anyone knows of a better source somewhere on the net, please post it.

BTW, Solectria reportedly stopped using Hawkers about 5 years ago because 
of this.  IIRC, by fitting multiple chargers they could aggregate enough 
capacity to make the batteries happy, but the cost was steep, and many 
users didn't have facilities to support the high power required.  I may 
be recalling this incorrectly though.


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David Roden - Akron, Ohio, USA
1991 Solectria Force 144vac
1991 Ford Escort Green/EV 128vdc
1979 General Engines ElectroPed 24vdc
1970 GE Elec-trak E15 36vdc
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