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 > > > >
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