Hello

I have some spare Li-on batteries from some mobile phones i used in the
past. Yesterday i was thinking about using some of them as a power supply to
some small devices. My problem is i don't know exactly the functionality of
the pins. I find 2 GND pins 1 Vdd pin and an other pin in some batteries
without any sign, in others called "T". What is this "T"? Also is charging
of Li-on batteries the same way as Ni-Cd?

Thanx

PS: I remember some time ago talking about a good program that is useful
while debugging (with MCUs & the RS-232 port) . Can anyone help me remember
the name? thanx
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