Stony.. we are trying to get you to tell us what motor it is and what ESC it is.. like who made it, what size it is, what the ESC is, what size (current capabilities) it is, so we can try to give you an intelligent answer. All else is just beating around the bush giving suggestions based on no information. Now if you don't know, that's fine. But you must have some idea, you have LiPo's and they are size related.