[TechAssist] Re: zapping batterys
- From: Bil Green <tv.vcrrepair@xxxxxxxxxxx>
- To: J Silverman <techassist@xxxxxxxxxxxxx>
- Date: Wed, 10 Sep 2003 11:21:22 -0700
I thought they were 3.6V. Must have been closer to 3.0. They are
still working after many months. I keep the spares in the fridge
to prevent discharging. I have alkaline cells in the freezer, not
sure if the lithium cells should be there.
--
Best regards,
Bil Green
2001 TV VCR
Mammoth Lakes, CA 93546
760-934-2001 mailto:tv.vcrrepair@xxxxxxxxxxx
Wednesday, September 10, 2003, 10:37:27 AM, you wrote:
JS> Lithium cells are nominal 3 volts, so those were single cell batteries.
JS> Interesting that zapping fixed some sort of problem.
JS> Jerry Silverman
JS> Greentron Inc
JS> 4 Newland Ave
JS> Greenville SC 29609
JS> 864 232 3889
JS> Fax 271 2080
JS> mailto:greentron@xxxxxxx
JS> ----- Original Message -----
JS> From: "Bil Green" <tv.vcrrepair@xxxxxxxxxxx>
JS> To: "J Silverman" <techassist@xxxxxxxxxxxxx>
JS> Sent: Wednesday, September 10, 2003 4:05 AM
JS> Subject: [TechAssist] Re: zapping batterys
>> The lithium batteries that I have zapped all were a volt or so low
>> when charged (usually a shorted cell). So I zapped them with 12V
>> in series with a 4 Ohm resistor. Wasn't sure how much current to
>> use (just figured that 3A would be enough).
>>
>> These were 3.6V batteries used in Casio PocketPCs. I applied the
>> voltage for a split second (several times were necessary in some
>> cases to get the voltage to come up). If you have an open cell I
>> don't know if zapping would help.
>>
>>
>>
>> --
>> Best regards,
>>
>> Bil Green
>> 2001 TV VCR
>> Mammoth Lakes, CA 93546
>> 760-934-2001 mailto:tv.vcrrepair@xxxxxxxxxxx
>>
>> Tuesday, September 9, 2003, 10:09:39 AM, you wrote:
>>
>> JS> Tell us more about zapping the lithium batteries. We have quite a few
>> JS> camcorder lithium batteries that seem to be open circuit. Have
JS> hesitated to
>> JS> experiment with them because of all the warnings on them about fire
JS> and
>> JS> explosion.
>> JS> Jerry Silverman
>> JS> Greentron Inc
>> JS> 4 Newland Ave
>> JS> Greenville SC 29609
>> JS> 864 232 3889
>> JS> Fax 271 2080
>> JS> mailto:greentron@xxxxxxx
>> JS> ----- Original Message -----
>> JS> From: "Bil Green" <tv.vcrrepair@xxxxxxxxxxx>
>> JS> To: "Ted chilinski" <techassist@xxxxxxxxxxxxx>
>> JS> Sent: Tuesday, September 09, 2003 3:28 AM
>> JS> Subject: [TechAssist] Re: zapping batterys
>>
>>
>> >> It IS OK to zap the whole battery to fix one cell. Just be very
>> >> careful. You only need to apply the voltage for a fraction of
>> >> a second, so there isn't enough time to heat things up. Zapping
>> >> the whole thing works for me. Besides, whata ya gonna do, take
>> >> a molded battery all apart?
>> >>
>> >> The cadmium in ni-cad batteries is very toxic (much more than
>> >> lead). If the battery were to somehow explode and some particles
>> >> end up in your mouth that wouldn't be good. I place something on
>> >> top of the battery, just in case.
>> >>
>> >> The small lithium battery in my Casio PocketPC cost $50. It sure
>> >> was nice to fix it when it failed to take a charge.
>> >>
>> >>
>> >>
>> >> --
>> >> Best regards,
>> >>
>> >> Bil Green
>> >> 2001 TV VCR
>> >> Mammoth Lakes, CA 93546
>> >> 760-934-2001 mailto:tv.vcrrepair@xxxxxxxxxxx
>> >>
>> >> Monday, September 8, 2003, 7:10:20 PM, you wrote:
>> >>
>> >> Tc> hi fellows :i've been zapping batterys for years to answer someone
>> JS> questions first you have to zap individul batteries for instance a
JS> telephone
>> JS> usually has 3 batterys check each one should be
>> >> Tc> 1.5volts which one reads less than 1.5volts is bad thats the one
JS> you
>> JS> gaff with 12volts don't apply the 12volts across the 3 batteries this
JS> means
>> JS> when you have more than 1 battery you have to
>> >> Tc> measure each battery and find the bad ones for instance a makita
JS> drill
>> JS> with 9.6 volts the plastic case has to be pried apart measure each one
JS> to
>> JS> find the bad one or more.
>> >> Tc> GOOD LUCK HAVE FUN
>> >> Tc> TED CHILINSKI
>> >> Tc>
>> JS>
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