Hey
Ill give it a check with a multimeter and see what the draw is normal and open.
Don't have a legible schematic right now. The button is currently using a pull up resistor. How would this affect the function of the circuit? I'm curious.
I am still leaning towards the voltage as it is the only changing variable. Like I mentioned, it works perfectly with the 5v usb attached to the VCC.
I'm going to try a resistor between the battery supply and the vcc pin. Also trying to track down a 5V or combination battery source.
Thoughts?
Newt