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Fanfold Paper
Posts: 21
Registered: ‎11-02-2008
Location: canada
Views: 343
Message 1 of 1

pins on batteries, what do they do?

Does anyone know what the middle pins on the batteries do? I'm referring to pins 3,4,5, - 1 and 2 are connected, and 6 and 7 are connected. 

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