too many amps ? too many volts ? i feel like a dummy

[rainmaker]

From everything I have researched the answer is yes. The most the controller you are using will ever draw from the batteries is 25 amps. So you are perfectly fine using that setup as long as the motor and the controller you are using are both rated for 72 volts. You can use more amp /hours to gain distance. It' s not the amps that will fry your controller it's using more volts than your setup is rated for. hopes this helps.

 

[KCvale]

Can I use a 75vx40amp battery on a bike with a 25 amp controller for distance.
Or will I burn something up?
I need 140 mile distance on level ground to commute daily. Also I live in florida. Hot.
Is this too hot for e bike. Thank you

Well, you might be able get the 70 miles to work and plug the battery into the charger for the 70 mile return trip and plug it in again, but when we talk that kind of miles go with a 4-stroke shifter.