Re: (ET) Dan's 2/10A charger

[David C Robie <mycroftxx1 juno com>]

Yup !   Feel it. a lot of that inefficiency sinks to the tractor frame
too thu the mtg straps.  Brute force chargers ain't efficient.  Feel your
wall warts that run telephones etc,  most are brute force types.   Then
feel an electronic one that runs a computer printer, scanner or something
like that after it's done a run.  Cooler.   If you got a dozen or so wall
warts in a house running things that idle mostly, you're wasting a
comparative lot of electricity.

Dave
Weymouth MA


On Fri, 03 Nov 2006 09:20:43 -0700 "Ken Muldrew" <kmuldrew ucalgary ca>
writes:
> On 2 Nov 2006 at 9:25, David C Robie wrote:
> 
> >   Contacts on the air cond types are rated at 15A.  Tractor, at 
> start
> > of charge and for a good while draws about 17.  
> 
> The charger is only delivering about 17 amps at ~40V, isn't it? Is 
> it 
> really that inefficient that it's putting 1000 watts into heat?
> 
> Ken Muldrew.
> 
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