I recently purchased a Traxxas Stampede 2wd xl-5 with the Titan 550 motor. It is only a week old and today I received a 4200mah battery in the mail as the 3000mah that came with it didn't give me much running time. I used the battery once today and it seemed to work fine, now that it is charged again it won't run. The light comes on the esc and the tires turn. Should I not have used this battery? Any ideas as to why the truck won't go now? Thank you for your time