Watts / Voltage = Current
According to the DAP1 specs, power consumption is 13 Watts. At 6v, you're looking at:
13W / 6V = 2.16 amps
That seems awfully[/] high to me - is the DAP1 really that big of a juice hog?!? - so maybe the 13W spec I found is wrong? Hopefully someone with an actual DAP1 can help.