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who where who where is offline
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Default Testing Nicad/nicd or NiMH cell ESR or SLA Gel Cell Battery Internal Resistance

On Sat, 16 Jan 2010 19:49:24 -0800, mike wrote:

who where wrote:
On Sat, 16 Jan 2010 08:06:06 -0500, "Wild_Bill"
wrote:

(snip)
Battery manufacturers and serious users disagree.. they've proven that
zapping new, high quality Nicad cells increases output voltage levels and
lowers the ESR/IR.


If battery manufacturers beleived that, they'd all be doing it
routinely before shipping their product.


It may not be as simple as that. Battery manufacturers are interested
in profit, quality, reputation etc. It may be that one parameter can
be improved by sacrificing another to an unacceptable degree.

It's possible that zapping might lower esr temporarily but result in
overall reduction in performance over the life of the cells.


That's exactly what I believe to be the case, *if* zapping at birth
has any effect at all.

The zapping info seems to come from model car/plane racers. They're
interested
in ONE thing...winning the race. They don't give a rats ass whether
they get 300 discharge cycles out of the battery.


yup

Preoccupation with one parameter like esr/ir may not result in maximum
uptime for your servers or lowest overall operating cost.