I have a few questions, so I will number them.
If you have a 500W motor (as an example) and you use a 2S 5000mAh 25C LiPo.
This LiPo will give 5A x 25C x 7,4V = 925W
What will happen now? Will the ESC top the power off to 500W?
How do you determine what ESC is best to use?
If a motor can have 500W (same example) and the manufacture says that you can use a 3S LiPo with a 60A or 80A ESC... Does that mean that the ESC sends 60A x 11,1V = 666A to the motor?
Will the power be too high then or am I missing something here?