[wgalligan]

I am using 1650mil Sanyo NiMH and the pack is about 1 1/2 yrs old and still cysles up to 1600mil.  I am going to test a little more tonight and make sure I tested correctly after the incident.  

> 
> Wayne... what batteries are you using? I find it interesting that the
> regulator should do this. I would expect it to cease working altogether,
> should it fail. Its just a Micrel reg with a few resistors and capacitors. I
> would however expect the voltage out  to go high should the voltage divider
> fail.
> 
> I guess anything is possible. Maybe you could have someone with some
> electronics knowledge ( in your neck of the woods) check it out for you.
> I would also carefully look at the batteries. I had some of the old
> Duralites, which failed  just under a few mA load, but appeared fine no
> load...nearly cost me a model too.
> 
> My condolences for the loss of your model.
> 
> Tom
> 
> > ----------
> > From: 	wgalligan[SMTP:wgalligan at cnbcom.net]
> > Reply To: 	discussion at nsrca.org
> > Sent: 	Tuesday, 25 March 2003 3:06
> > To: 	<discussion at nsrca.org>
> > 
> > I had an unfourtunate mishap yesterday and lost my Prophecy.  Come to find
> > my redundant or failsafe switch failed on me.  I was using a MCI Miracle
> > swith that has a regulator on it and has mechanical fail safe if switch
> > breaks down the system is on till the battery is unplugged. I found out
> > when testing the battery to make sure I had juice.   Through the battery
> > lead I had 6.5v and at the charge plug I had 6.5 but when tested through
> > the receiver end of the switch I had only 4.2v.  Below the recivers
> > voltage threshold.  Went into pcm lock up and throttled down and into a
> > slow spiral death.  At least the throttle came down by pcm failsafe.  SO
> > it appears the regulator side of this switch went bad.  SO Much for
> > failsafe.  Has anyone heard of such failure on these types of switches?
> > And is it really neccesary to voltage regulate a 6volt system.  I know
> > when peak charged the pack is at 7 volts on an expanded meter.   I have
> > recently gone to 1500mil 4 cell pack on my new plane to eliminate the
> > regulator part.
> > 
> > Wayne
> > =====================================
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> > 
> 
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