one last question, i am going to buy the hobbywing justock 45a brushless esc and a revtech 17.5 motor and a savox sc-1257tg servo. i am using a gens ace 4000mah 30c 7.4v 2s lipo battery. the mains at my local track are about 4-5min. will my battery last for 4-5min mains?