Motorizing Fairground Sets

[Terrasher]

Hi, I don't own any of the fairground sets, but I'll be adding a couple to my collection pretty soon and want to motorize them. 

I own the power functions battery boxes that are better suited for Technic sets. Is there a difference between this battery box and the system one that shows up in the new Rollercoaster video? I don't know if the speed of the motors will be different depending on what battery box is used.

[dr_spock]

4 hours ago, Terrasher said:

Hi, I don't own any of the fairground sets, but I'll be adding a couple to my collection pretty soon and want to motorize them. 

I own the power functions battery boxes that are better suited for Technic sets. Is there a difference between this battery box and the system one that shows up in the new Rollercoaster video? I don't know if the speed of the motors will be different depending on what battery box is used.

The AA battery box should work just fine.  In the video they show the standard AAA battery box that doesn't have the speed control.  Both boxes output the same voltage to the m-motor.  AA batteries will run much longer than the AAA batteries.  I mix battery boxes all the time for my MOCs.