Re: (ET) Time for a NiMH Elec-trak - Amp hours

["Mr23" <mr23 mn rr com>]

Depends on how long you need it to run.
5 years ago I replaced 6 6v's with 3 Hawker SBS60's, which is plenty to plow 
snow, cut grass, etc on my 1/2 acre, reduced the weight significantly for 
less impact on the lawn, and no battery maintenance.

----- Original Message ----- 
From: "John B Reinhard" <reinharj frontiernet net>
To: <elec-trak cosmos phy tufts edu>
Sent: Saturday, April 09, 2005 1:31 AM
Subject: Re: (ET) Time for a NiMH Elec-trak - Amp hours


> Aren't our typical Trojan Golf cart batteries rated about 200 amp/hours ?
> so our packs are 36v @ 200 amp/hours ?
> Chris wants to try a pack that is 1/4 of that ?
> am I understanding this correctly ?
>
> Should be lots lighter anyway . . . if that is what you want
> But in the case of a tractor, we are always talking about MORE weight over
> the traction wheels, etc.
>
> I wonder if these NMH batteries can take recharge like the Panasonic NMH
> cordless drill packs - full recharge in under an hour !
> What does that do to charge cycle life ?
> What is the charge curve ?
> All the cordless battery packs have a temperature sensor inside them - to
> prevent overheating the pack when pushing charge rate to the max.
> I think you would want same thing trying NMH batteries on Elec-Trak.
>
>
> ----- Original Message ----- 
> From: "RJ Kanary" <rjkanary nauticom net>
> To: "Christopher Zach" <czach computer org>; "Elec-trak list"
> <elec-trak cosmos phy tufts edu>
> Sent: Friday, April 08, 2005 8:30 PM
> Subject: Re: (ET) Time for a NiMH Elec-trak
>
>
> > BE CAREFUL !
> >
> > ----- Original Message ----- 
> > From: "Christopher Zach" <czach computer org>
> > To: "Elec-trak list" <elec-trak cosmos phy tufts edu>
> > Sent: Friday, April 08, 2005 8:22 PM
> > Subject: (ET) Time for a NiMH Elec-trak
> >
> >
> > > OK, this is going to be fun. I have got a 2001 Prius battery pack. 273
> > > volts by 6.5ah.
> > >
> > > Naturally that's a perfect 45ah pack at 36 volts. So I'm going to sit
> > > down and get this to work with the Elec-trak.
> > >
> > > The real reason for this is because I need to understand how to 
> > > parallel
> > > charge and discharge NiMH packs. They're not pefect but best we have.
> > >
> > > If people are interested I'll post my trials, tribulatons and stuff 
> > > like
> > > that over the summer.
> > >
> > > Chris
> > >
> > >
> > > _______________________________________________
> > > Elec-trak mailing list
> > > Elec-trak cosmos phy tufts edu
> > > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> > >
> >
> > _______________________________________________
> > Elec-trak mailing list
> > Elec-trak cosmos phy tufts edu
> > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>
>
>
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> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak

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