I have a sprint 2 and im using a 7.2v 2000mah nimh battery right now i would like something with more mah to last longer (mine last from 15-25mins)as im just using the car for fun. On the controller i have it set up to go as slow as the car can to try and save some power. Im using the car to drift in parking lots and things of that nature. I didnt want to spend to much on a battery and im not 100% sure on this but i think after a certain mah i would need to upgrade my motor and or esc, however im just looking to get a longer lasting battery without buying any other upgrades besides a charger of course. i found a 7.2 5000mah battery nicd but im not sure if my car can handle it ( my car has a type 540 motor not sure about the esc)

let me know what you guys know or suggest! Thanks