RE: Wow, that is a lot of AMPS
Yep, same Amps. Apparently, the ability to measure large currents for long periods of time is not an often-requested feature, so they leave it out of most meters. It's also a source of a lot of heat buildup, hence the 30-second limit on that Fluke meter. Let it go longer, and the meter could burn up.
To measure high currents, you need a piece of specialized equipment. For electric flight, there are three popular choices:
1. AstroFlight Whattmeter - Invaluable if you're serious about electric flight. Measures Amps, Volts, mAh, and calculates Watts. Tells you "What's" going on with your "Watts."
2. Maxx Products has a similar meter that only measures Volts and Amps.
3. Sears Clamp-on Multimeter.
The Whattmeter's the most accurate, because you place it inline between the battery and ESC.