What watts?

Somebody asked me the other day 'how many watts is that motor in your Maxx?'

'Sorry watt?, I haven't a clue, but It keeps whipping your Savage eh?' was the best answer I could come up with :o


Could someone please give this fella a more informed answer than that. thank you :)
Its a 7XL on 18 cells

[Serum]

1800 watts, on good cells. (every good cell can deliver about 100 watts)

It's not using this power constantly, otherwise your batteries would be empty in a few seconds.

so its more about the voltage than the motor its self?

sorry for the school boy questions. :)

[Rtsbasic]

Well a motor can only give out what you put into it give or take resistance and efficency. With a motor like the 7XL batteries are probably the limiting factor in power (voltage, and the amount of amps they can put out while sustaining a good voltage).

[nbcaznmaster]

WATT=FORCE x VELOCITY, if there is no angle in its direction. WATT's standard units is N(x^2/s^3). Lol, ironically! we learned about it in physicas class today!

[coolhandcountry]

I thought a watt was voltage time amp draw.

That is why a battery can only supply about 100 watts. 100amps of draw and the voltage falls to 1 volt. That is why the bateries are the limiting factory. I learned this on rc monster forum. :p

[nbcaznmaster]

sorry! WATT is teh units for POWER. The power u talkign about it ELECTRICAL power!

[Papa]

NBC, did you sleep through grammar class today?

[MetalMan]

We just had our test today in AP physics on mechanical power (watts) and energy (joules). nbcaz, to simplify what watts is a measure of:
-Force x velocity (as you said)
-Energy / time - The amount of energy done over a period of time
-mass(kg) x distance(meter)^2 / time(sec.)^3

[lipomax]

power is power. Amp x Volts = Force x Velocity = I^2 R = .... All the units cancel out. they're all equivalent. Electrical power and mechanical power.

[Serum]

Poor guy only asked how many watts his system was.. :p

[coolhandcountry]

Well power in is power out. IF you only put 9oo watts of electrical power in. How do you get 2200watts of power out?

[lipomax]

You don't. Power in x efficiency = power out. With 18 cells, max peak power is around 1800-2000 watts. Factoring in efficiency, cabking's max power is around 2 HP. However, the torque curve is totally different for electric vs. gas so it feels like a lot more than a 2 HP gas.

Cabking: just tell the dude it's 2000 watts.

[nbcaznmaster]

im in ap physic also! our schudules must be similiar cuz its for AP test. You have to get so much done, in a certian amount of time

[maxxdude1234]

:C: .....what serum said.....