Re: (ET) Electricity cost

["Christopher Zach" <czach computer org>]

I bought a set for $20 a battery.

It is true though that I do hook up the charger once or twice a season to
give the pack a heavy equalize. However I am not sure it's necessary; the
batteries measure out even with just the solar system (it can equalize to 
46
volts, but only at 3 amps)

Chris

----- Original Message -----
From: "goodguyforsure" <goodguyforsure hotmail com>
To: "elek-trac Discussion group" <elec-trak cosmos phy tufts edu>
Sent: Friday, August 30, 2002 11:19 PM
Subject: Re: (ET) Electricity cost


> Battery cost?  My set ran $380.00.
>
> ----- Original Message -----
> From: "Christopher Zach" <czach computer org>
> To: "elek-trac Discussion group" <elec-trak cosmos phy tufts edu>
> Sent: Friday, August 30, 2002 5:14 PM
> Subject: Re: (ET) Electricity cost
>
>
> > My E20 costs $0.00 to operate; just another data point :-)
> >
> > Chris
> >
> > ----- Original Message -----
> > From: "Bill Alburty" <wilbett earthlink net>
> > To: "elek-trac Discussion group" <elec-trak cosmos phy tufts edu>
> > Sent: Friday, August 30, 2002 11:47 AM
> > Subject: (ET) Electricity cost
> >
> >
> > >     People have asked how much electricity my E12 uses, how much it
> costs
> > to
> > > operate it. I decided to make a measurement to see. You all might be
> > interested.
> > >     My 1-year old T125 batteries were probably something like 85%
> charged
> > when I
> > > put an ammeter in series with the charger plug. Initially, it drew
about
> 9
> > amps.
> > > After 2 minutes it was around 5 amps. Several minutes later it had
> > stabilized at
> > > 4.05 amps. The voltage was 117.7 VAC..
> > >     That's 476.685 watts. In 8 hours that would be 3.813 kwh. In my
> town,
> > they
> > > charge us about $.07 per kwh, or 27 cents for that much electricity.
> I'm
> > > supposedly able to mow 3 acres on a full charge. My 8 hp gas mower
uses
> > about
> > > $1.10 worth of gasoline to do my one acre. So, energy wise, the
> > operational cost,
> > > at the point of use, is about 12 times higher for gasoline burners.
Tell
> > that to
> > > your gas burning neighbor.
> > >     I'll try this again sometime when the batteries are fully
discharged
> > to see
> > > how much more the cost would be (probably not much), but this give us
an
> > idea of
> > > it.
> > >
> > > Bill
> > >
> > >
> > >
> >
>
>