On Monday, November 30, 2015 at 8:07:53 PM UTC-5, Danny D. wrote:
Bruce Sinclair wrote, on Tue, 01 Dec 2015 01:56:02 +0000:

?? The definition (or one of them ) of watt is W=VxA (or VA). Are you
saying they are different ? ... if so, why ?
https://en.wikipedia.org/wiki/Watt

We both agree that an AC VA is a watt just as much as a DC
volt time amps is a watt.


That is not correct. Volt x amps are equal to watts only if
the power factor is one. That's true for a resistive load.
But for a load with inductance or capacitance, like your
charger, VA watts and the actual power in watts will be
less than the VA rating.