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(OT) Is this true ; or make any sense??
a bulb is not a 'charge', it's a load.
Whadda' ya' mean, discharge down to one volt? They only have 1.25 fully
charged! You'd be doing exactly what you don't want to do!!!
drain 'em DEAD!
:)
Larry
(maybe Canadian ni-cads are different???)
> NEVER put a charge (a bulb) across NiCads untill the
> batteries are fully drained. You will damage the
> batteries, guaranteed.
>
> You have to discharge NiCads down to 1.0 Volts per
> cell. NEVER below. This is know as the "knee" in a
> graph.
>
> Say that you have a 7.25 Volt battery. That would be 6
> times 1.25 Volt cells (fully charged). Put a charge -
> a light bulb is a good compromise - untill you read
> 6.0 Volts across the battery With the bulb still
> connected. Then disconnect the bulb.
>
> Recharge at 1/10th of the rated Amp/hours for 16
> hours.
>
> Repeat three times.
>
> Your battery should be reasonnably recycled. If the
> battery is toasted, then it is toasted, and buy a new
> one.
>
> Static voltage (with no charge) of a NiCad battery
> should always be 1.0 Volt per cell. So in the above
> exemple, your 7.25 Volt battery should always read
> ABOVE 6.0 Volts ( 6 times 1.0 Volt). If it reads lower
> than that, you have one or more damaged cell. Buy a
> new one.
>
> Cheers.
>
> Marc
> '83 Scirocco
> '88 Scirocco slegato
>
> --- Kenneth & Georgianna Robinson
> <krobins2@twcny.rr.com> a écrit : > Thanks for your
> reply!! I guess I'll stick with the
> > light bulb draw experiment for now;closely
> > monitored.All I have now is a small l.e.d. bulb;Ill
> > get a bigger one tomorrow.Ken R.
> > ----- Original Message -----
> > From: broke
> > To: Allyn ; Kenneth & Georgianna Robinson ;
> > Scirocco List
> > Sent: Tuesday, October 08, 2002 7:26 AM
> > Subject: Re: (OT) Is this true ; or make any
> > sense??
> >
> >
> > Be careful leaving the battery on the lights after
> > the lights have stopped burning.
> > Like Al said, this is an old RC trick, used to
> > revive old racing packs.
> > If you leave them on the lights, you risk
> > reversing the voltage of the cell, or one of the
> > cells that make up the pack.
> > The memory are really cystals inside the cell that
> > is keeping it from fully draining or charging.
> > Cystals are built up a number of ways, like not
> > fully discharging, not fully charging, etc.
> > NiCad batteries are bad for it, and the MH
> > batteries were supposed to be less sensitive, but
> > they'll still do it too.
> > Once cell voltage reversal has occured, you can't
> > change it, and that cell is shot.
> > We used to run 12V auto bulbs in series to produce
> > a very high amp draw. Once the lights went out, you
> > HAD to pull the pack. After a bit, items like a
> > Battery Bug or a pack staablizer were introduced,
> > and this replaced the light bulbs set-up, and with
> > built in circuitry, it would cease the draning once
> > the pack discharged, to prevent the cell reversal.
> > Then you would either slow charge it fully, or use
> > a higher end peak charger, which monitors the cell
> > voltage and shuts off charging when peak voltage
> > begins to drop.
> > Do a search on Nickel Cadmiuim batteries or RC
> > battery care, and you'll find some more info on the
> > subject.
> > Depending on the care, NiCads have about 1000
> > charges in them before they crap out.
> > I ran electrics for 10 years, before finally
> > switching over to nitro-methane. Since I got into
> > the VWs though, the poor RCs have just sat and
> > collected dust.
> >
> > Broke
> > ----- Original Message -----
> > From: Allyn
> > To: Kenneth & Georgianna Robinson ; Scirocco
> > List
> > Sent: Monday, October 07, 2002 10:58 PM
> > Subject: Re: (OT) Is this true ; or make any
> > sense??
> >
> >
> > memory makes the battery produce a sort of
> > internal resistance. put it in the camcorder and it
> > seems dead (just like a faulty ground cable on our
> > roccos). put it in the charger, and it think its
> > done in minutes (again, due to this resistance,
> > dropping voltage, ending up with the outward
> > appearance of a fully charged battery (as far the
> > the charger can tell, from the outside)).
> > you need to fully discharge the battery
> > (light bulb) for abt 6 hours (even if the bulb is
> > hardly lit), then fully charge it (slowly, not the
> > quick charger, if its an 8 hr slow charger, leave it
> > for 24 hrs so the cells equalize), then do the light
> > bulb thing again (abt 3 hrs past where it gets dim),
> > and charge it one last time (slow, again, 24 hrs).
> > this will attempt to get rid of the memory in nicd
> > batteries.
> > if the batteries are very old, it may just
> > be their time to go, especially if they are nicd.
> > the old light bulb trick comes from the r/c
> > car days, people would fully discharge their packs
> > with the same light bulb type things after each run.
> > HTH
> > Al
> >
> > ----- Original Message -----
> > From: Kenneth & Georgianna Robinson
> > To: Scirocco List
> > Sent: Monday, October 07, 2002 9:09 PM
> > Subject: (OT) Is this true ; or make any
> > sense??
> >
> >
> >
> > ----- Original Message -----
> > From: Kenneth & Georgianna Robinson
> >
> > Subject: (OT) Is this true ; or make any
> > sense??
> >
> >
> > Someone told me awhile ago,that if your
> > camcorder battery won't take a charge
> > anymore(develops a memory--???); that you need to
> > put some kind of light with wires across the
> > contact/charging terminals of the batt.If the light
> > is connected right,the light will light up,and when
> > it goes out completely you are supposed to be able
> > to charge it up again.Has anyone heard of this
> > before??? My batt. is undergoing this right now.I'll
> > find out tomorrow if this works.Ken R.
>
> __________________________________________________________
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> magasinage.yahoo.ca
>
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