Been away for a while, trying to get things running again. Not sure if my battery pack is dead but, when I turn on the switch to my electronics battery pack should I get a light or something on the receiver?? I have a T Maxx 3.3 4909 model ( I think, its about 4/5 years old ). It sat for about a year but it had a relatively new hump pack in it. New batteriers in the transmitter. Thanks