battery calibration at X9D

[Helle]

Hy,

What should I set at Battery calibration

the real value of the TX Battery under load
or only the difference from measering of the Battery to the displyed value

For example
the Battery has 7,8V (X9D, Power on) under load
displayed values ist 7,9V


sould I set the calibration setting to 7,9V or -0,1V or 0,0V

[Kilrah]

Adjust on the radio until the value is correct... I believe that's shown as difference in companion.