I just got my slash 4x4 5 days ago and it worked for the first 2 days Of course I had to drive threw water because it said it is waterproof. Now when i plug in a fully charged nimh battery the esc blinks red about 2 or 3 times then waits a second then blinks red again. Sometimes the wheels will stear ut the throttle never works. I suppose it could be the battery I used the traxxas 7 cell not sure if it is waterproof. I ordered a maxamps waterproof lipo so i'll see if that will fix it but for now could someone please tell me what could be wrong with it.