Quote:
Originally Posted by mark christopher
i doubt it very much, each wire will go to the same place on the cell,no matter where you take a reading from on those conectors you will get the same reading, my guess is its for this sort of charger
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That is the whole point of a 4 wire measurement. To have both measure and sense wires as close to the point requiring measurement as possible. This is what we use for high accuracy tests of aerospace products. I'm not categorically saying that this is the exact purpose the extra lead was added for but this is the principle of the measurement technique.