I wanted to rig up a load test for some batteries.
I don't have a substantial 12V DC load, so I set up a 1000W inverter, a
short extension cord, a Kill-a-Watt meter, and a heat gun.
With the heat gun on low, The kill-a-watt reads 110v, 606 VA, and 355W.
The question is how much load is this putting on the battery? Somewhere
between 30 and 60amp I guess, and either way my multimeter can't measure
more than 10A DC current, so I can't measure it directly.
My Googling on the topic has failed to enlighten me. My instinct is to
think that Watts is Watts, so I should probably use 355W in my
calculation of battery capacity, but I'm not sure.