yes there is a tape that comes with losi and team AE. i haven't used it for about 4 years now and i have the same batts as you.
are you running your esc wire under your batteries to the reciever? if you are, that is your problem. i had the same thing happen to me, and once Charlie from novak showed me why, i had no clue. i now run the 9" wire from my esc to my reciever, going up to the steering servo then to the reciever. going under that betteries caused major issues over time.
what happens is that the wire ends up under one or more of the cells and when you land from any jump. i glitched. sometimes 2-3 secs. and sometimes so much that i had to pull off the track. what happens is when you land the wire is being pinched by the battery cell and causing a short in power to the esc or the reciever or both. this is more likely your problem. people are always quick to blame graphite when it is something else. but yes graphite conducts better than pure plastic but now to the extent that you are having problems.