My drone is assembled and right now I’m dealing with calibration and tests. There is one thing that doesn’t convince me too much … is the estimation of absorbed current that I see in the .bin plots.
You can see the attached picture, where the BAT.Volt and Batt.Curr are shown from the log file .bin. The plot is very rough because I was doing calibration here … but as you can see the average current value is around 2A. This is the same current that I need to hover in AltHold mode.
If I understood correctly, this current info is sent to the NAVIO2 via the same plug that I use to power it up (via connections A0 and A1). This value of 2A should be the overall current drain from the battery … so by using a 1500mAh 3S battery, I thought the drone should fly ideally for 45 minutes (1.5Ah/2A=0.75hrs=45minutes)
In practice, I expect some losses but so far the battery cells go from 4.2V to 3.6V in less than 8 minutes. That doesn’t convince me too much …
The drone weight is 510 grams. Can you tell me what do you think about the picture below? Where is the mistake in the estimation?
Shall I trust this estimation of current or not?