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Latitude c640 battery pinout

Last response: in Laptops & Notebooks
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August 11, 2011 4:36:53 PM

Hello, I'm requesting a Battery Pinout for the Dell Latitude C640 Battery model 66 Whr
a b D Laptop
August 11, 2011 9:44:59 PM

ugh, best of luck finding that...

If I may ask, why do you wish to have one?
November 18, 2011 2:18:32 PM


Left to right looking at connector:

1 Neg
2,3 NC
4 Switch (short to neg to enable battery)
5 NC
6 Data
7 Clock
8 NC
9 Pos

Note that some of the NC pins should be connected to the thermistor, but these are the connections that you would need to charge or communicate with the battery.

To be sure of your orientation, use a volt meter to find pos and neg before making any connections.

This pin out covers around 75% of all Dell laptops
!