Yes sir. If you want to balance the battery the "best" way, the official way is to drive the car as low as possible. Somewhere between 0-10% would be good.
Then have the car unlocked and turn on the hazard blinker. Start charging the car with a granny charger, let the car charge up until it stops charging with the car unlocked and the hazard lights on. Caution: This will take a long time, so you should do this in a locked garage.
I did this, and gained about 7kWh.