RadioMaster MT12 RC Car Low Battery Telemetry Warning

[@rt-vd5yn]

Is it should be RxBt?

[@the-happy-RC-flyer]

It depends on the name of the sensor in this case yes. You can tell because if it is showing the RX battery voltage it will display 5 volts. If you are using a 2S battery you will see 8.4 volts if the sensor is showing the supply battery voltage.