New Speed Control

[Serum]

It's more likely that this the current the motor is rated for, that it can handle, so an essiential thing is missing.. Time. It is not the current the motor will draw (it CAN draw though, Like metalman says) With that internal resistance of .0034 Ohm..

[Mister_Anderson]

So, If I'm getting this correctly, my motor will only draw as much power as my batteries and ESC can handle? So If I went for a lower rated ESC the motor wouldn't pull as hard a thus be slower or accelerate slower?

So currently I have the Peak Racing Li-Po rated at 78 amps(I think), and the MGM ESC rated for 120 amps. Would the MGM be faster than the Quark 80?

Other than the Quark, I'm for a new BL controller. I'm looking for one to handle the 6s, within the $200 price range(little over is okay), and water-proof is a huge plus. Any suggestions?
Thanks guys,
Chris
P.S. Thanks for the electronics lecture. I really appreciate it. I'm always willing to learn more.

[MetalMan]

The motor can only put out as much as the batteries put in. The ESC does affect performance slightly, the more amps it can handle, the less resistance it has which gives more power to the motor. But, the batteries are the limiting factor. If an ESC can't handle a motor, then it will get hot and possibly smoke. You could possibly use a lower-current rated ESC, and set the acceleration to slow, but then your acceleration would be slow.

The amp ratings on ESCs don't really affect speed, except in the very minor loss that they have due to their resistance (more amps they can handle, the lower the loss). The MGM 120amp should (theoretically) be able to handle more than the Quark 80amp, simply because it is rated higher.

You're not going to have much luck finding a 6s Lipo controller under $200 that will be able to handle much besides the 9920 or Quark 80amp (that can handle a decent amount of current). But, if you use a higher battery count (like 6s Lipo), then you could possibly use a controller that is rated to use fewer amps. With higher voltage and a slower motor, the current draw will be reduced (assuming the gearing is appropriate).

[Mister_Anderson]

I think you misunderstood. Yes I am running Li-po cells but only 2 in series not 6. The "6s" part was the type of motor I have (Feigao 6s). The 9920 does look tempting... Well anyway, I'm still open to suggestions because birthday money in my pocket is burining a hole.
Thanks guys,
Chris

[coolhandcountry]

If you running a 2s lipo and have a 6s feigao on it. I think I would go for a esc with built in lvc and a higher amp rating. The 6s is a amp hungery little motor.

[Mister_Anderson]

My Scorpion has a built in LVC the Peak Racing however doesn't, but it says just to stop when it noticably slows down or something like that.

[MetalMan]

Originally Posted by Mister_Anderson

I think you misunderstood. Yes I am running Li-po cells but only 2 in series not 6. The "6s" part was the type of motor I have (Feigao 6s). The 9920 does look tempting... Well anyway, I'm still open to suggestions because birthday money in my pocket is burining a hole.
Thanks guys,
Chris

I see... The Mtroniks Genesis Pro would work with the 6s, and the Quark 80 should as well.

[QUOTE=Mister_Anderson]My Scorpion has a built in LVC the Peak Racing however doesn't, but it says just to stop when it noticably slows down or something like that.

NOT a good idea. It'll actually damage the cells if you do that, which decreases the overall life of the pack, which means that your money ends up not being well spent. It's much more worthwhile to use a LVC device.

[Mister_Anderson]

I think I'll check into the Mtroniks because someone mentioned it in a previous thread. When I have the cash I'll buy the LVC. For now I suppose I'll just use a volt meter or something.
Thanks guys,
Chris

[MetalMan]

Only problem with using a volt meter is that you can't use it while your driving. Under acceleration, the voltage will draw from high amp spikes, but afterwards the voltage will come back to normal. Without a LVC, you have no way of knowing how low the voltage of the cells under load is.