I forgot to mention that I had a transmitter battery drop to 8volts during a flight. The alarm starting screaming and I was able to land without any problems. The transmitter battery lost a cell during a flight. Near disaster.
I also had a duralite transmitter battery pack fail just sitting in the garage, not even being charged. came in the next morning and it was melted.
Vivid reminders that the transmitter is only powered with one battery and one module.
Scott