Arfon Gryffydd <arfonrg_at_texas.net> wrote:
> Answer me this.... My old laptop has three contacts that touch the
> battery... One negative, one positive and..... ??a sense?? I need to
> construct a NiCad pack and I do not know what to do with the third pin.
> How do I connect it?
Hi
Most battery pack third wires are for a thermistor or
temperature switch. The most used thermistor is the 10K
size. You should be able to measure this with a meter.
If it is a switch type, it may be harder to figure out.
Measure between the leads for voltage. Find the leads that
don't show any voltage difference. Measure these leads with
an Ohm meter. Don't put an Ohm meter on leads with voltage
across them.
Dwight
Received on Mon May 10 1999 - 16:00:05 BST