Recent content by VadimS

Yes my spelling is horrible but that has nothing to do with that matter at hand. By insignificant I was referring to overall efficiency and a modern computer cpu puts out over 50w (an older p4 about 80w). Oh and yes I'm an @ss.

Heat = energy. Whats is a measurement of energy. Therefore if the total resistance changes the energy lost as heat will change. Adding more switching devices will lower the electrical resistance. Using devices with lower on resistance will have the same effect. But when you are talking about...

That sounds about right. 37v, 12ah at 6 min = 120a draw.

If you gear the motor to high it would be possible to fry the esc, but you would be putting a huge stress on the motor and if you used a larger esc it would fry the motor. Putting more mosfets in parallel decreases resistance. Amperage = Voltage drop / Resistance Voltage drop * amperage =...

In this case you have 25% (200 amp controller and 150a motor) But what you have to remember is the the only difference between a 10a and a 200a controller is ON resistance. The lower the resistance the less power is wasted in the controller hence less heat. So in this case just put a fan on the...

:iagree: with J.M. a brushless motor will last much longer. The only thing that could fail is the bearings. Brushless motors have all but taken over the rc world because they are more reliable and more efficient. I have a fare amount of experience with an electric helicopter and taking...

That controller would be more then good enough for that motor, You can't use 2 3-phase motors on one controller and I have not seen any 3-phase motors that can draw more then 150Amps without melting. The only exception may be the electric of of a hybrid car but until they become more popular and...

That controller would be perfect.

What taking the weekend off.:sifone:

Has any one used a brushes motor in their cart. https://www.unitedhobbies.com/UNITEDHOBBIES/store/uh_viewItem.asp?idProduct=5139 This one is good to 9hp at only $150. There aren't any controllers available past 48V so this one...