If you have an iPhone, look into the Spike app which allows you to reset a transmitter and then keep using it either in Spike or back in the Dexcom app. I have reset transmitters several times in Spike and gotten 2-3 extra months because the Dexcom shutdown is only a software shutdown and has nothing to do with the actual status of your battery. If you use an Android phone, my understanding is that you can do the same thing in xDrip.
