Improved SAT II for sale ...John

[John Ross]

Hi Brian,
You are so right, the written word is not expressive.
On rereading, I see that you knew what I meant, as you said new cells. I just
didn't want anyone mixing cells or packs that were mismatched, for capacity.
I have only had my SAT apart, and it has a three pack of AA NiCads. Under normal
circumstances they last about a week.
I haven't had my SATlll apart, so I don't know what they are.  They last roughly
twice as long, and I think they are NMH. I know the charger is larger, 9V@900mA.

Regards,
John M. Ross
Windsor, Nova Scotia, Canada.

Brian Trout wrote:

> Hi John,
>
> Didn't mean to sound critical in my earlier post.  My apologies if it came
> through that way.  It can be frustrating trying to write with expression.
> :-)  I understood what you meant.  I probably should have prefaced my
> comments so you knew where I was coming from.  Sorry about that.
>
> Just curious, are they using NiCad batteries? or Nickel Metal Hydride?  Do
> you know what sizes of cells?  ('C' cells, perhaps?)
>
> Best wishes,
>
> Brian Trout
> Quarryville, PA
> btrout@desupernet.net
>
> ----- Original Message -----
> From: John Ross <piano.tech@ns.sympatico.ca>
> To: <pianotech@ptg.org>
> Sent: Sunday, October 10, 1999 11:34 AM
> Subject: Re: Improved SAT II for sale
>
> > Hi Brian,
> > I guess I didn't make myself clear.
> > If one cell in a battery pack is below standard, it draggs the other cells
> down,
> > and they never reach their full potential.
> > If one cell in an "old" pack is shorted, replacing that cell with a new
> one,
> > will get you by, until another of the older cells shorts out.
> > We are only talking about $20 Cdn for the pack, and you are back to the
> full
> > potential, which I always found adequate.
> > Regards,
> > John M. Ross
> >
> > Brian Trout wrote:
> >
> > > I would tend to think that it would be no problem to use batteries in a
> > > parallel fashion, but it would be advisable to start out with fresh
> > > batteries for both legs of the parallel circuit.  I'm not familiar with
> how
> > > the charging system is set up, but it would need to have an appropriate
> > > current capacity.
> > >
> > > Here's another idea for you, if you're interested.  If there's room for
> > > another battery pack, it might be less radical to add the additional
> battery
> > > circuit with a switch to change back and forth between the two.  If
> they're
> > > put in with the design that they'll never be operational at the same
> time,
> > > it wouldn't have any affect on the charging circuit at all.  Switch in
> one
> > > position, it uses and charges one battery pack.  Switch in the other
> > > position, it uses and charges the other battery pack.  Sort of like a
> second
> > > gas tank on your truck.
> > >
> > > There are no doubt dozens of possible variations.
> > >
> > > Just a thought.
> > >
> > > Brian Trout
> > > Quarryville, PA
> > > btrout@desupernet.net
> > >
> > > ----- Original Message -----
> > > From: John Ross <piano.tech@ns.sympatico.ca>
> > > To: <pianotech@ptg.org>
> > > Sent: Sunday, October 10, 1999 10:14 AM
> > > Subject: Re: Improved SAT II for sale
> > >
> > > > Hi Michel,
> > > > From reading the directions on rechargeable batteries, I notice that
> it
> > > says
> > > > never to mix the batteries in use or recharging. So I would recommend
> that
> > > you
> > > > disconnect the older battery from the SAT, otherwise it will be
> > > detrimental to
> > > > the life of the new one.
> > > > I have changed the battery pack in my spare SAT, with one from Radio
> Shack
> > > and
> > > > it is still working fine.
> > > > I would also think, that you would be putting an extra load on the
> > > charging
> > > > circuit.
> > > > So in my opinion it is a bad idea, to parallel the batteries.
> > > > Regards,
> > > > John M. Ross
> > > > Windsor, Nova Scotia, Canada
> >
> >