The display shows the charge level of both batteries as well as the total range.Related ArticlesWhat is the Bosch DualBattery technology?How does the Bosch DualBattery work while riding?Which models are available with Bosch DualBattery System?How are the batteries charged with the Bosch DualBattery technology?Do I have to swap the Bosch DualBattery batteries from time to time?