kentc:
Okay, so I tried your method and measured the voltage across the circuit which comes to about 4.8V. Putting a 1M Ohmz resistor in series and measured the drop across it comes out to 4.1V. Did Ohmz law and got 4100 nanoAmps.
I'm doing the same thing right now and getting very similar numbers (measured about 0.33mA current with my cheapo meter, got 4.1V with the 1M resistor).
I'm confused about what's happening though:
If the voltage drop across the 1M resistor is 4.1V, that means there's only 0.9V across the chip - not enough to keep running! How do I know it's sleeping properly?