Re: Li-ion battery issues...

From: H. R. Bob Hofmann (hrhofmann_at_att.net)
Date: 08/02/04 

Date: 2 Aug 2004 13:59:46 -0700

gothika <Vampyres@nettaxi.com> wrote in message news:<u5nrg0564m4tn90s7hb5mgtlahcvhkiqqp@4ax.com>...
> On Sat, 31 Jul 2004 06:22:34 -0400, "Jerry G." <jerryg50@hotmail.com>
> wrote:
>
> >The batteries may have been too long on the shelf, and are not very good, or
> >the camera charger has a fault condition. When these batteries sit for too
> >long after manufacture and have not been cycled, they can be internally
> >damaged over time.
> >
> >If you can have a known good battery to use on the camera, this would be the
> >best test. Or, if you have a way to do an evaluation on the camera charger,
> >or use another charger to charge the batteries, you would then know where
> >the fault is.
>
> Thanks for the reply.
> I've about decided that it's the batteries that are bad.
> Took them back and swapped some of them for a second try.
> All bad as well.
> They are old.(At least 2 years or so.)
> probably why they're trying to peddle them off at half price.
> Every time I've had problems with Dv camcorder batteries it's almost
> always been the smart chip inside, not the actual batteries.
> Wish there were a way to get these as a replacement part.
> I've lost count of the battery modules I've tossed because of crappy
> electronics.

You mentioned only 3.15 volts across the individual cells when
charging, I think. Isn't that too low? I thought the individual cell
voltage was a little higher than that when charged, so maybe the
charger or the regulator/charge electrohnics isn't putting out enough.
 Also, have you tried charging the individual cells manually from a
separate source, to see if it is the cells or the charger regulstor
that is bad??

H. R. (Bob) Hofmann

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