Whats an urban and a hybrid?
Motor watts. Do not tell us anything about how powerful a motor is. Its entirely possible for a 650 watt motor to have more speed, or and more torque than an 800 watt motor.
It just tells us how much power it can sustain continuously without damage through heat for eg. So if you take a 650 watt motor, and add some cooling fins, and
change nothing else it becomes an 800 watt motor. If you take the same motor, and add a plastic cover, or put your sweatband around the motor, it becomes a 500 watt motor. Its actual level of performance doesent change one bit. Only its ability to cool.
Heres another example. This, is a motor thats sat on my shelf, used for hobby stuff.
http://www.espritmodel.com/neu-1115-air ... otors.aspx The 1st one on the chart.
All of these are rated for 1000 watts continuous each. Its a very conservative rating. In reality we add extra cells, and run them at around 1,600 to 2,000 watts. They are all the same, with only the number of turns on the motor being different. (to run on different voltages or cell count.). Each is just over 1 inch diameter, and two of them, fits easily into a shirts top pocket...
On ANY powerchair, the amout of
peak watts, such as when turning or climbing a steep hill/ramp is not determined by the motor. All decent powerchair motors will pull way more Amps than the Power Module can give. So if its got a 120A power module, then that is the thing that limits the torque. And maximum watts, occurs at 24V battery x 120A power module, per motor. Which is 2,880 Watts. Peak. That same figure applies even if you have
350 watt motors! Or 2000w motors.
So my thoughts? Without seeing the chair/motors and knowing the 4 important parameters that DO determine motor performance I have no idea. Those figures are motor impedance, stall current, free running current and motor efficiency. Those determine motor performance, not watts. Watts tell us only the continuous power level allowed and is a nominal figure best taken with a pinch of salt.
