I have a Canon compact digital camera Model IXUS70 which I want to use for time-lapse photography. The battery doesn't power it for long enough so I propose to gut an old battery and turn it into a power connector so I can externally power the camera indefinitely.
The battery has three connections:
- and the third is unmarked, though I understand that this is a thermistor connection.
How should I connect this third pin, assuming that I am feeding 3.7 VDC into the