Advice please : Quick voltage and amps question + speed control

[magicniner]

Get the 24V PSU and a single PWM controller rated to run all three motors, check the specification of the motors for current draw, you've just referred to the motor ratings as aH (amp hours) which is a battery charge capacity not a motor current draw.
If you don't have one get a multi-meter so you can check voltages and currents once you have something to fiddle with.

[Fivetide]

Get the 24V PSU and a single PWM controller rated to run all three motors, check the specification of the motors for current draw, you've just referred to the motor ratings as aH (amp hours) which is a battery charge capacity not a motor current draw.
If you don't have one get a multi-meter so you can check voltages and currents once you have something to fiddle with.

I might just plump for one of these and a travel adapter and when I have everything working flog it on fleebay again. Super 30V 5A 110V Adjustable Power Supply Precision Variable DC Digital Lab H6TG Or keep it I might want to mess with other stuff later. If it saves me buying the wrong power supply at least that justified the purchase lol