Traxxas 2.4GHz transmitter problems

[A RC Dude]

Hey guys, I have just had two traxxas 2.4GHz transmitters go bad on me in the past week. The first had an occasional blip every now and then over the past year and now comes on for a few seconds, the LED starts flashing extremely fast, and keeps flashing slower till it just dies all together. The second I tried to link to the same receiver and after 2-3 mins of trying to link, power just went out completely and now when you turn it on the LED will flash very quickly and stay off. One was a TQ traxxas link, and the new one was the TQi 2-channel. Any idea what may be causing it? I ended up running my car on my friends TQi at a shake park last week and it was fine...