Difference between "6V" and "7.2V" speed 400 motors
I'm looking to get a speed 400 motor. Several are advertised as "6V Speed 400" and "7.2V Speed 400". What's the difference? The voltage range and current figures are the same for both motors (according to the Tower Hobbies website, maybe that's wrong). Are those numbers the maximum voltage you can use without damaging the motor? Is one more efficient than another at it's "rated voltage"? Thanks ahead of time for the help.
-Aaron