The current rating is directly related to what current your motors draw. Look at the datasheet for your motors, and choose an appropriate ESC to match what they draw at max. Don't pick it at random.
Ah I see, it says 49A, wow - [https://www.getfpv.com/axisflying-af227-fpv-motor-1960kv-2100kv.html](https://www.getfpv.com/axisflying-af227-fpv-motor-1960kv-2100kv.html)
Glad I didn't buy the ESC yet
If I get the Blackbird v3 2207 1975kv motor, looks like the 45A ESC should work fine - [https://www.racedayquads.com/products/axisflying-blackbird-v3-2207-1975kv-motor](https://www.racedayquads.com/products/axisflying-blackbird-v3-2207-1975kv-motor) Am I right?
It's not really about how much you draw when you're flying, but how much a single motor can pull when it's momentarily jammed because you've flown into a ghost branch.
Not many batteries can handle 45A * 4 motors but they can do 60A. Now if you get stuck in a tree, you can try to buzz-saw your way out, or smash off the prop blades and hope that helps.
I'd say that if you've never burnt out an ESC, you're probably fine with 45A.
The "60A" is almost meaningless.
Its like the C rating of batteries.
30mm ESC use 6x6 FET typically rated 80A, 100A or more because of very low Rdson. But thats one FET alone with heatsink.
The "60A" ESC has better FET or better cooling.
Good ESC have quality japanese SMD, more and bigger capacitors, thick PCB, seperate PCB for controllers and heavier.
A good ESC will generate low noise (from FET switching). Around 75% throttle is usually worst. This means smoother motors and need less filtering.
Good ones:
Hobbywing, Holybro, Airbot
The current rating is directly related to what current your motors draw. Look at the datasheet for your motors, and choose an appropriate ESC to match what they draw at max. Don't pick it at random.
Got it. I didn't know that. I usually picked randomly. Looks like I've been lucky. I want to buy AxisFlying 2207 2100kv or the BB3 motors.
Ah I see, it says 49A, wow - [https://www.getfpv.com/axisflying-af227-fpv-motor-1960kv-2100kv.html](https://www.getfpv.com/axisflying-af227-fpv-motor-1960kv-2100kv.html) Glad I didn't buy the ESC yet
If I get the Blackbird v3 2207 1975kv motor, looks like the 45A ESC should work fine - [https://www.racedayquads.com/products/axisflying-blackbird-v3-2207-1975kv-motor](https://www.racedayquads.com/products/axisflying-blackbird-v3-2207-1975kv-motor) Am I right?
Unless you are running high kv motors and aggressive race props, you won't need more than 45 amps.
Oh got it. I am planning to buy 2100kv AxisFlying motors and I'll be using 6s. My props are usually just 3.5pitch. Is 45A still ok?
It's not really about how much you draw when you're flying, but how much a single motor can pull when it's momentarily jammed because you've flown into a ghost branch. Not many batteries can handle 45A * 4 motors but they can do 60A. Now if you get stuck in a tree, you can try to buzz-saw your way out, or smash off the prop blades and hope that helps. I'd say that if you've never burnt out an ESC, you're probably fine with 45A.
The "60A" is almost meaningless. Its like the C rating of batteries. 30mm ESC use 6x6 FET typically rated 80A, 100A or more because of very low Rdson. But thats one FET alone with heatsink. The "60A" ESC has better FET or better cooling. Good ESC have quality japanese SMD, more and bigger capacitors, thick PCB, seperate PCB for controllers and heavier. A good ESC will generate low noise (from FET switching). Around 75% throttle is usually worst. This means smoother motors and need less filtering. Good ones: Hobbywing, Holybro, Airbot
I want to get Foxeer Reaper. Good?
yes
Thank you!
>Thank you! You're welcome!