The power control system charges the storage cell till the cumulative power stored in the storage cell reaches a first threshold when the drive schedule data represents the vehicle is to be used during the period, or otherwise, it charges the storage cell till {HEAD ~ the cumulative power} stored in the storage cell reaches {TAIL ~ a second threshold} smaller than the first threshold when the drive schedule data represents the vehicle is not to be used during the period 
The power control system charges the storage cell till the cumulative power stored in the storage cell reaches a first threshold when the drive schedule data represents the vehicle is to be used during the period , or otherwise , it charges the storage cell till { HEAD ~ the cumulative power } stored in the storage cell reaches { TAIL ~ a second threshold } smaller than the first threshold when the drive schedule data represents the vehicle is not to be used during the period
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