Hello, I had an uncle pass away and I was gifted his Traxxas Stampede with a Reedy 2400 mah battery and Onyx 200 charger. He never really used it much and it is about 5 years old. I have been unable to get the battery to charge. The charger says it's dead when it starts charging but goes to full charge and starts trickle mode within a couple minutes. I have tried on the 3 and 5 amp settings with the same result. When I have tried driving the truck, I get about 1 minute before the battery is dead. I bought a new exact duplicate battery but have had the same results. Am I doing something wrong or is tbere something wrong with the charger? How much run time (city street) should I be getting? Thanks in advance!