diff --git a/Battery.md b/Battery.md
index d4b73f7..ee6d8b8 100644
--- a/Battery.md
+++ b/Battery.md
@@ -16,9 +16,10 @@ Batteries up to 12S have been used safely in the community, but do it at your ow
 You can adjust the levels to your needs in config.h.
 
 ## Calibration:
-Battery voltage has to be calibrated to have a more accurate reading
+Battery voltage has to be calibrated to have a more accurate reading, for this you need [Debug Serial](https://github.com/EmanuelFeru/hoverboard-firmware-hack-FOC/wiki/Debug-Serial) to be active
 * Measure battery voltage with a multimeter and write the value * 100 to parameter BAT_CALIB_REAL_VOLTAGE in config.h
-* Read value BatAdc or 5 from [Debug Serial](https://github.com/EmanuelFeru/hoverboard-firmware-hack-FOC/wiki/Debug-Serial) and write it to parameter BAT_CALIB_ADC in config.h
+* Turn the board on and wait for a few minutes for the Battery ADC to stabilize
+* Read value BatAdc or 5 from Debug Serial Output and write it to parameter BAT_CALIB_ADC in config.h
 * Save, compile and flash the board
 * Value BatV or 6 in Debug Serial should match with the measured battery voltage now