Clifford,
The right length copper tube of 1/2 nominal size 5/8 true OD and two copper end caps, with bumps embossed inwardly into them, serves me well to take two straight polarity NICD cells and one "dead, unchargeable" reverse polarity cell in series--the
assembly is three cells in length-- and "force charge" the presumably dead cell in about 5 seconds. So much so that I bought 100 surplus 800 maH NICD cells which someone will inherit when I die, because you couldn't pry them from my warm, living fingers
at any price; they are that useful. NIMH are usually said to hold charge well but I do not know. All I know is that NICDs will go dead, are toxic, and can be restored. Douglas
On Thursday, June 17, 2021 at 7:35:41 PM UTC-4, Clifford Heath wrote:
On 17/6/21 9:52 pm, Jim Wilkins wrote:
I bought a $35 pair of replacement battery packs...
I can't answer your main question, but I avoid NiMH because they go flat
too quickly when not used, and after three months cannot be charged
again. They're hella expensive to replace usually as well.
CH
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