48 volt motor into a 36 volt toaster cart

motard

I'm fairly certain this is not a good idea... I did it anyways to run it around this weekend since my 36 volt motor died. It works but is SLOW. Is this normal?

I plan on ordering a controller conversion for the cart today and plan to add 2 more 6 volt batteries in the mix to make a 48volt set up.

Should I stick with this motor after the conversion or swap back to the repaired 36 volt motor? Any comments are welcome.

(Cart is a 1990 36v resistor coil carryall 1)

BGW

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scottyb

Get your old motor fixed or replace it. The 48v CC series motor is a dog at 48v but, your 36v motor will come alive at 48v.

motard

Ok cool, thanks for the info. I'll be calling you shortly to place an order. :)

Revolution

My experience has been that motors don't mind being over-volted. I run 36 volt motors at 72 volts every day.

Some motors will heat up with lower voltages.

Check the temperature of the 48 volt motor after driving it a while, if it gets hot be careful so you don't burn it up.

scottyb

Amps + volts = power.
If you decrease one the other increases. SO less voltage causes the motor to consume more amperage, some of which is converted directly into heat.

klanel

Don't know if it was a typo but the formula for power is Amps * Volts

And it's true at a fixed amount of wattage that a decrease with one will cause an increase in the other if the power remains the same which may be true for motors but that's not true for all electronic/electrical loads.

For most consumer loads, the less voltage the less amps which equals less power. Some electric companies will lower the voltage on the lines to lessen the loads during peak times.

Just saying that a decrease in one leads to an increase in the other is not always true depending on the type of load.

scottyb

klanel

I did not disagree with the point you were trying to make, just clarifying the formula for power. I was merely pointing out that this concept of lowering one variable to raise the other was something more unique to motors and does not typically apply in other areas. That's all..

scottyb

I understand, but posts like that only serve to muddy the waters for readers who are trying to understand how the golf cart works without a course in electrical engineering.
Low voltage / high amp draw is a leading cause of component failure with golf carts.

tag50

Need to include a tin foil hat warning, otherwise my head will hurt.


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