Charging Laptop (and other)batteries

From: Lawrence Walker <lgwalker_at_look.ca>
Date: Thu Apr 5 21:36:33 2001

 This is likely elementary but many times I run across the encased laptop
and other function(eg cordless drills) batteries. Of course each has it's own proprietory
charger which have long since disappeared and are costly to replace as well as being
device and company specific . Many of them have a 3rd terminal. What was it's
purpose.
 Can you recharge these batteries simply by rigging up an interface using appropriate
voltages and polarity ? How would you deal with the 3rd terminal ?

 larry

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Received on Thu Apr 05 2001 - 21:36:33 BST