Seeeduino MEGA 4.02v on 3.3v Pin

I just measured my voltages using external battery power input:

Vcc = 4.964
3.3 = 3.305

On USB power

Vcc= 4.996
3.3 = 3.305

That was using a Fluke model 45 bench meter that should be in pretty good calibration.

Lefty