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ProModeler Scorpion Power

New Heliman

brooksville, fl. u.s.a.

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what is the best way of matching a motor with esc and battery. rule of thumb? or equation?

07-03-2016 02:45 PM


Virginia Beach, Va USA

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"what is the best way of matching a motor with esc and battery. rule of thumb? or equation?"

In my opinion, it's not an equation. First what size heli is it? What size motor,esc and battery is recommended and go from there. I don't think it's a magical formula, just go by what the manufacturer recommends and you can't go wrong. Just my 2 cents....good luck.

Minicopter Diabolo 700, Compass 7hv, Goblin 700 triblade, Compass 6hvu, Logo 600se

07-03-2016 03:08 PM
Heli 770


Lemon Grove, CA.

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07-03-2016 03:27 PM

Senior Heliman

Punta de Mata, Monagas-Venezuela

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Electric motor is most important that esc.
Battery next...
Less important, esc.

Max current motor = max current esc * 0.8

Max current esc = nC * 0.5
Where n is time the capacity C of the lipo batt.


Max current Motor 100 amp... That means 100 * 0.8, 80 amps max current esc.

80 = nC * 0.5, suppose you need a 4500 maH lipo, C=4.5
Then 80 = n * 4.5 * 0.5 , so n= 35


For a 100 amp Max current motor, you need a 80 amp Max current esc.
For the lipo bat, you will need a 35C 4500 .
Numbers of cells according to motor and rpm.


Saludos cordiales,

08-29-2016 04:16 PM
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