[sdiy] several questions

[Scott Gravenhorst]

This is great info!  I have a pile of dead NiCd cells.
Does anyone know of a schematic that will accomplish
this safely and properly?  After doing this, would I
expect to see a change in the resistance of the
cell, or would I have to wait for a charge cycle to
see if it worked?

The Old Crow <oldcrow at oldcrows.net> wrote:
>
>On Tue, 1 May 2001 CHoaglin at aol.com wrote:
>
>> that for a while. While we're on batteries, I've seen an interesting
>> technique used by my uncle to give NiCd packs a new lease on life, namely
>> using a large cap and and SCR to discharge the cap through the
>> battery..Something about "blowing the shorts out of it"...anybody know
>> anything about this?
>
>  Ah, good old Ni-Cad zapping.  'Tendrils' of nickel tend to build up
>between the cells in a nicad battery, especially if the battery is not
>deep-cycled on a regular basis.  A high current pulse is used to "punch
>out" the threads and bring the battery back into normal paramaters.
>
>Crow
>
>/**/
>


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-- Scott Gravenhorst | LegoManiac / Lego Trains / RIS 1.5
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