Excessive resistance (drag), will cause motor to draw more amps (current flow) to operate.
You asked the wrong question. You need to know how many amps the motor uses. Then you can multiply amps times volts and get watts. Then you can multiply watts by hours and get watt hours. (For house electricity you pay for kilowatt hours.) A kilowatt is 1,000 watts.
About 2.25 Amps.
The armature bushings inside the starter motor are probably shot. Time to replace the starter.
Resistor coils that rob power to slow the motor are burned up. A new one at the dealer is about $80.00.
Resistance. Water has a lot of resistance.
A motor (scooter).
Motor getting tired and needs replacing
Install a rheostat in series with the motor.
As slow as possible. You should never be on the high end of the reverse gear, and the motor should be at idle as you're backing.
slow down my saliva~
I would recommend a slow charge of 10 amps at 12 volts.
sprinting