General amp draw question

[hyrulejedi86]

So I have been wondering for a while now but when looking at the feigao motors I noticed that they each give a max wattage as well as a link which shows the feigao motor chart.

Now taking the 540L as an example.
The wattage is 700 watts:
Using the W=V x A formula:
~ running 6s means 31.5A
~ running 4s means 47.3A
~ running 3s means 63A

Once you look at the chart that shows the Max amp per kv configuration they are very different.

My question is how do you really know what to look at to figure out what's best for your project? Using different input voltages would change the amp draw, right?

I.E. If I knew I wanted the 12L rated at 51A max what voltage does that correspond to? Do you look a 51A to plan ESC and batts or do you take the wattage and use the formula based on which cell configuration you want to use to figure your ESC and batts?

Sorry for the length question but thanks for the clarifications!!

[video200]

the 12L is a 3s to 4S motor based on KV.
the watt on the OSE page is for MAX continuous reccomended usage and not what it can actually take out of your system.

personally i would pick my batteries before motor.
but for your question.
knowing that a 12L can draw twise (and probarly way more if stalled) of what its reccomended on the OSE shop and the feiago chart if over propped, i would calculate esc from that and probarly go for something in the 120 amp range.

[hyrulejedi86]

Ok, that is good information. And well explained, thanks. I had been wondering for a while in case I do a bigger build later.