Power = (voltage) x (current)
If the camcorder is USING 14 watts of electrical power right now, then . . .
14 watts = (2 volts) x (current)
Divide each side by (2 volts):
Current = (14 watts) / (2 volts)
Current = (14 V-A) / (2 V)
Current = 7 Amperes