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Re: Current sensing, etc
- Subject: Re: Current sensing, etc
- From: "David Roden" <roden ald net>
- Date: Sun, 3 Jan 1999 00:32:52 -0500
- In-reply-to: <19990103034123.EOLY20818@LOCALNAME>
- Sender: owner-elec-trak cosmos5 phy tufts edu
> >You buy a high current shunt. The EV parts dealers (Electro
> >KTA Services, and so on) sell them, and you might be able to find them
> >a local industrial vehicle shop.
> Military surplus is much cheaper when available, check Fair Radio
> http://alpha.wcoil.com/~fairadio/ or Burdens 1-800-488-3407 from time to
Excellent suggestion. I bought a 300a shunt at a surplus dealer 10 years
ago for $3, about 10% of new price. No accuracy guarantee, but that
wasn't a big deal.
> >This is one of the older model snow throwers. Maybe I'm expecting too
> >much of a single stage snow thrower (though it looks pretty potent).
> >maybe not. Anybody have any idea what I might be doing wrong here?
> Low temp have devastating effects on lead batteries. You might want to
> the voltage under load to see if holds above 11V per battery with the
> thrower and tractor on especially if batteries are old.
I hadn't thought of this. I didn't notice any other low battery
symptoms, but I also wasn't watching the voltmeter (I admit I often don't
on the ET). I will notice this next time. It shouldn't be a problem
because the batteries have only a dozen or two cycles on them, but ya
Thanks for the note!
David Roden THE VIRTUAL PD
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