"The low battery alarm on the Nova is practically useless.  Your battery will be almost completely depleted by the time it alarms, if it alarms at all.  You can use the parameters in Mission Planner to "enable" the RTH but the board will not…"

"Power Current Module
Power Current Module connects to the ADC port.
Used to detect the battery voltage and the battery current, flight control board"

"I used the same Telemetry Module with my Quanum Nova and did not have to change the pin layout.
 
Working like a charm"