Does a Brushless Motor Pull Power from the ESC?

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  • เผยแพร่เมื่อ 2 พ.ย. 2024

ความคิดเห็น • 16

  • @helmydewa
    @helmydewa 2 ปีที่แล้ว +1

    Does this mean like if i have 2 setup
    1000kv with 10:1 gear ratio
    2000kv with 20:1 gear ratio
    Both motor are same dimensions only different in KV, both use in the same kit let's say the weight of the kit is 5kg
    Given the ratio the speed is about equal right? But with 2000kv the load of the motor to turn run the kit is much lighter right? So is that mean that the power use in both motor is almost identical?

  • @RCPhysics
    @RCPhysics 5 ปีที่แล้ว

    Excellent video as usual. I've been preaching this to the RC Speed Run and Drag racing communities for some time. Lately, lots of guys have been jumping to the most aggressive motors and ESC settings that they can muster without properly tuning their systems or considering the load on their motors, ESC, and batteries. The results usually involve charred electronics and releasing copious amounts of stinky smoke. It's good for folks to hear this message from multiple sources.

    • @RCexplained
      @RCexplained  5 ปีที่แล้ว

      Thank you for the comment. That's great that you too are sharing god info. It certainly helps the RC community grow. Keep up the great work on your end!

    • @SEC0NDTW0N0NE
      @SEC0NDTW0N0NE 4 ปีที่แล้ว

      Hi, I wonder if you can help?
      I have 2 Savage XS’s which have been sitting in the shelf for over 3 years. I changed the gear ratio to be able to run 3s lipos, like on a video which was done by HPI on TH-cam and I changed the ESC’s to a hobby wing 120a esc and sold the other ones. Now before I brought any 3s lipos, I obviously ran my 2s to see how it ran.
      The car is amazing fast which is what I wanted but it puffed up my 2s lipos, motor and wires were getting hot. The esc wasn’t. As the original esc is suppose to be 80a is it the esc which is causing this or is it the gearing or is it the batteries.
      I really want to to start running them again, but don’t want to spend unnecessary money!!!!!!
      Really hope you can help.

    • @RCPhysics
      @RCPhysics 4 ปีที่แล้ว

      @@SEC0NDTW0N0NE Puffed batteries usually mean they were not able to keep up with the current load of the motor/esc or they had been damaged by undercharging or overcharging. Here is an article I wrote about this.
      facebook.com/rhouse21RCPhysics/posts/1475426522628851

    • @SEC0NDTW0N0NE
      @SEC0NDTW0N0NE 4 ปีที่แล้ว +1

      rhouse21 - RC Physics Thanks for answering my question.
      I balance charge all my batteries. So I take it the ESC is too powerful for the battery and motor then.
      I don’t really want to go back to 80a esc. I wonder if dropping it to a 100a would stop it.
      Thanks for replying because most people don’t reply when I have asked this question.

    • @RCPhysics
      @RCPhysics 4 ปีที่แล้ว

      @@SEC0NDTW0N0NE A new battery is the best way forward so you don't loose performance.

  • @kristopherdonaldson9569
    @kristopherdonaldson9569 ปีที่แล้ว

    Great video. I have a odd question for you. Can you have too much ESC for a motor? More specific, can say setting the punch value too high result in the snapping of a motors shaft?

    • @RCexplained
      @RCexplained  ปีที่แล้ว

      No, the motor only takes what it needs. The idea is to make certain the ESC and the Battery can provide more current than what the motor will draw under an appropriate load for it. Think of it more as the esc can only restrict the motor. an example of this is setting punch values lower.

  • @dtpc_technologies
    @dtpc_technologies 3 ปีที่แล้ว

    Great video.
    Using a high current ESC with a low current motor would work fine, but could it affect the flight time in any manner? Since the high current ESC would have extreme low Rds MOSFETs which could allow the motor to consume more current than it actually needs..
    It would work fine but all I am curious is about the flight time.
    I am using a 55A 4in1 esc with 360KV motors which would draw a max of 20A.

    • @RCexplained
      @RCexplained  3 ปีที่แล้ว +1

      You wouldn't notice a difference in run time but you would notice a difference in the heat produced at the ESC.

    • @dtpc_technologies
      @dtpc_technologies 3 ปีที่แล้ว

      @@RCexplained
      Thanks for the reply 😄

  • @mike216ism
    @mike216ism 3 ปีที่แล้ว +1

    Okay so if we want to future proof our build we can go ahead and put that super powerful esc on without worrying it's going to burn a motor out. The motor is only going to ask what it needs. I was very curious about this. Going to build a 4" race drone. Wanted to buy a super powerful t motor 55 amp esc in a small 20x20 form. No motor out now for a 3 or 4 inch could ever need that much current. It's nice to have the super powerful esc for future proofing

    • @RCexplained
      @RCexplained  3 ปีที่แล้ว +2

      That is correct. A 100A ESC can work on a motor with a max current of 10A for example.

    • @mike216ism
      @mike216ism 3 ปีที่แล้ว +2

      @@RCexplained thanks so much for confirming this. I was worried I wasted a lot of money. It was a 90$ esc. I've grown to have a massive amount of respect for t motor products. There qualify is second to none. The extra money spent is future proofing and insurance on reliability. I've got many of there esc and all have been amazing. Thanks for confirming this. Have a blessed weekend

    • @RCexplained
      @RCexplained  3 ปีที่แล้ว +1

      No worries Mike. Good luck with your build.