Strange Batery Behavior

[pbrine at uoguelph.ca]

Randy:

I would check the voltage on the fully charged pack.  I suspect that you have a
dead/bad cell and the voltage is lower than the cutoff on the cycler.

I had a battery pack do this earlier this year.

The voltage on the fully charged pack was only about 4.0v which was less than
the cutoff on the cycler so it immediately switched over to charge.

I didn't investigate further as it was 2 years old.  I just threw it out and
bought an new pack.  Batteries are cheap.  Airplanes aren't.

Paul
Quoting randy10926 at comcast.net:

> I was out practicing this last Monday when I noticed the lights on my volt
> watch doing what I thought was strange stuff.  So I stopping flying and went
> home.
>
> I put the plane on the cycler and charged the Ni-cds on the cycler.  Next
> morning independent check showed the battery as full charged and no
> flickering lights on the volt watch when I turned the plane on.  So far - go
> good, so I thought it might be good to cycle the batteries a couple of times
> just to make sure things are working.  When I push the dis-charge button the
> plane immediately goes back to full charge.  I cycled two other batteries to
> check the cycler out and it seems to be working.  So is the battery in the
> Focus safe to use?
>
> Randy Hatfield


=====================================
# To be removed from this list, go to http://www.nsrca.org/discussionA.htm
and follow the instructions.