Pixhawk battery remaining % error

I am trying to set up the battery monitoring as accurately as possible. I have the voltage in Mission Planner reading to within 0.08V, so that’s good, however % remaining reads 20% too high. Is there a parameter for correcting this?

the battery % is based off the capacity you put in the battery config screen. I would update the mah number to better reflect your setup.

Thank you. I have been experimenting with this and now have a more accurate reading.