I got this all very wrong by jumping to conclusions.

In my initial tests the camera failed to power up so I then assumed
that a spring contact was connected to the T as it was the correct
distance away from the other contact and the reason why it failed to
power up.

On closer inspection the spring does not align with any contacts on
the battery.  I suspect the spring is simply there to pop the batt
out.


I then reconnected with a regulated 5V supply with 2 diodes in series
and it powered up with low batt.  I removed 1 diode and is working
great.

I guess it failed to original power up because I did not hold the
button down long enough or the output volts from the un-regulated
supplies dropped to low for the camera to operate (thou I did monitor
the level while attempting to power up.)

Anyway thanks for all the input and the strong suggestion from Russel
regarding not using too high supply voltage due to the probable use of
regulators that will have Max Vin not much greater than the battery
fully charged.

Now back to time lapse renovations.

Cheers Justin
--=20
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