Take in account that the current consumption decreases with increasing voltage.
So for the same amount of Wh you need only 3/4 mAH for a 4S compared to a 3S battery.
So instead of 3s 5000mAh you get nearly the same with a 4s 3700mAH.
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What is the best flight time that it is possible to get on an 4s 1300gm auw drone?
Thrust is 4kg total
You can try out ecalc
I tried but ecalc is very wrong for me.
On 4s 6000mah it gives 25min
No idea if it is wrong or correct or what.
Why do you think that is wrong?
I canât imagine such a long flight time on an f450 with 920kv 2212 motors
It seems correct. If you picked the components correctly, itâs shows a slightly conservative value. You seems to have picked the right components and youâll most probably get more than 25 mins of light flying/hover time
I get 25 mins of mostly hovering flight time on my 4500 mAh F330 drone (Under 1 kg though). Havenât tested a full flight in cruise, but chances are, the flight time will increase.
@Ishitbh a correctly configured drone consumes less power as the motors get less hot with a better tune.
Ecalc assumes a correctly tuned done in itâs calculations and a brand new battery.
I donât think there are too many inefficiencies but the motors can draw peak 12a each which is 48a
In hover it draw around 1/3 ( higher assumed) = 16a.
On 6000mah flight time = 22.5 but with inefficiencies in drone it will be around 15-17 min
Itâs not 1/3. The curve is not linear and does not scale like you think.
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I have rarely found it at all wrong from 3" craft to 18" craft. User input error in most cases I have seen.
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I am 100% sure all the input is correct.
So, basically, 15+ min is possible on about 3300mah 4s
Seems about right, yeah
Unfortunately I havenât had such good luck when testing e-calc with small helicopters.
eCalc claims it should be able to fly unless I put ridiculously high values for TConst.