Do both Nucleus batteries discharge simultaneously?

If one battery is more discharged than the battery the battery in the other pocket of a the docking station, the battery with the higher state-of-charge will discharge exclusively until it reaches the state-of-charge of the other battery. The battery of lesser state-of-charge will be effectively disabled until they reach equilibrium. At which point they will both discharge simultaneously until both are depleted. This explains why a docking station might only output 120W (instead of 240W) with two batteries inserted in the dock.