Re: (ET) 18 volt source

[Christopher Zach <czach computer org>]

*nod* Yes, this is probably the best way to go. Technically I can run 
the tractor with plenty of range by using only the rear battery box 
filled with 60 NiMH batteries (80ah at any rational discharge rate).

I think I will put a pair of AGM batteries up front in place of the 
T105's (which are now ballast only) and use that.

For the lights though a small DC-DC converter is only a few bucks; will 
get one of those.

Chris


jeremy gagliardi com wrote:
> One other suggestion I've seen previously is just to add a separate 18V 
> battery & charger (charger can be outside the ET) and just run the 18V/12V 
> stuff off the dedicated battery, leaving the 36V series for all 36V-native 
> applications.  If there isn't much room under the hood for an extra batt, I 
> know there's plenty of room in the rear weight box or toolbox.
>
> I'm not advocating or critizing this solution, just that I've seen it 
> suggested before.  It's probably the cheapest and simplest solution, being 
> just the cost of a battery and charger.  DC-to-DC converters can get quite 
> expensive, especially in the high amperage range.
>
> (---------------------------)
>  mailto:Jeremy Gagliardi com
>  http://Jeremy.Gagliardi.com
> (---------------------------)
>
> ----- Original Message -----
> From: "Chris Zach" <czach computer org>
> To: "Elec-trak list" <elec-trak cosmos phy tufts edu>
> Subject: (ET) 18 volt source
> Date: Wed, 24 Aug 2005 21:04:21 -0400
>
>
> > Ok, I love my Elec-trak's new flooded NiCD pack. I haven't even had to 
> > water the cells...
> >
> > However there is a problem in paradise: NiCDs hate to be tapped. And I use 18 volts a lot for 
> > things.
> >
> > So I need a 36 volt to 18 volt converter for the front lift (30amps), rear lift (same) and all 
> > my little tools (up to 30a). Any suggestions on what I could use?
> >
> > I guess I could just go with a Curtiss GC controller wired to 18 volts or something. But I'd 
> > prefer another suggestion.
> >
> > Chris
> >
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