Product Review
Battery Voltage Sensor FrSky Battery Voltage Sensor is provided as Two Way Telemetry System's Optional Accessory.
There are three voltage ranges to choose: 1S lipo for battery voltage range from 0V~6.6V, up to 3S lipo for 0V~13.2V and up to 5S lipo for 0V~19.8V.
Please check the battery voltage division ratio for each option below: Recommended Voltage Option Max Lipo Pack Count Battery Voltage Division Ratio 1S 1S 2:1 2S 3S 4:1 3S 5S 6:1.