That is the theory and it seems to be confirmed by two experiments.
When the cells arrive, the terminals are often noticeably covered
with corrosion. Perhaps this corrosion is due to prolonged exposure
to the sea environment during shipment, or to corrosive chemicals
used during manufacture. It seems only prudent to remove it. Light
sanding seems to be a simple and effective method to remove the bulk
of that obvious corrosion.
Since that initial experiment and subsequent success with Noalox, I
have built a number of packs and I have not had any more trouble with
high resistance connections whatsoever. It may not be necessary in
every case, but it is not much trouble to lightly sand and apply
Noalox, and it does not appear to be any detriment.
Bill D.
At 11:11 AM 7/31/2014, Lawrence Harris wrote:
Remember that in almost any connection there is always an oxide
layer. The purpose of the sanding is to remove enough of this so
that a reasonable pressure between the wire/strap and the connection
can break through this layer and form a gas tight connection. The
grease is just there to keep moisture out, fill any small gaps and
prevent surface corrosion. The the added zinc will likely take up
any remaining oxygen and further prevent corrosion for a time, as
far as I know it does not contribute to the conductivity of the connection.
Lawrence Harris
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