title_body: What is the power draw of an average 5 inch FPV-drone? I'm doing a project in school where I'm comparing different batteries for use with an FPV drone. To do that I need to know a how many watts the battery needs to be able to provide.
  I found this motor test, but if I understand it correctly, the motor draws about 30 - 40 A on average depending on the propeller, and 150 - 190 A maximum. If this test is with only one motor (I assume it is, correct me if I'm wrong) that seems like a lot, considering that my drones draw about that much in total (4 motors + VTX, camera etc.) during flight. The voltage is about the same as my drones (4S), so that would result in a much higher power draw (About 9600 W vs. 2400 W).
  Could someone help me figure out what is correct? Considering a typical 1550 4S battery can deliver about 200 A burst, it seems like I'm wrong about something.
upvoted_answer: No, those figures are likely quite correct. High peak current draw is one of the reasons why drone battery leads are 12 AWG. Although, the MQTB motor test you're looking at is a fairly synthetic test that isn't 100% representative of what you'd see on an actual multirotor drone.
  Here are some reasons why:
  
  The astronomical current figures at roughly &gt;2/3 throttle aren't that common to see in a given flight. High throttle punches are usually a small percentage of total flight time.
  When the current draw gets too high, the internal resistance of the battery causes voltage sag that tempers/lowers power output. You can think of this as a kind of negative feedback loop.
  The peak figures he cites are almost certainly highly transient affairs, like for example when the motor initially starts from a stagnant state and requires a bunch of juice for a fraction of a second. I haven't tested this myself, but I'm fairly confident that peak current draw over a more reasonably long period of time would be a lot lower.
  
  That said, peak current draw during a flight can still be quite high. Once well-calibrated, the current sensor on many flight controllers can paint a rather flattering picture of total current draw, sometimes showing hovering in the ~20-50A range and peaks in the ~100-150A range during punch-outs for reasonably powerful setups.