I managed to get a SBS-01V Voltage Sensor for my Futaba 18MZ.

It is not available in the market for some months.

I connected it to the receiver battery (New THUNDER POWER 910-2S) before the DigiSwitch.

I have some strange reading in the radio telemetry:
Under load the receiver battery voltage droops to 4.0V and simultaneous it reads 8.1V on a voltmeter connected parallelly.

Is someone had the same experience with the SBS-01V Voltage Sensor?

Does Futaba aware of this problem and that is the reason why It is not available in the market for some months?

Best regards,

Isaac Najary