An example operation includes determining a portion of a group of vehicles, the portion comprising at least one vehicle in the group with a battery capacity below a first threshold, where the first threshold is a battery capacity of one or more vehicles in a remaining portion of the group of vehicles; and halting a use of the portion of the group of vehicles until the battery capacity of the at least one vehicle in the halted portion of the group is around the battery capacity of the one or more vehicles in the remaining portion of the group of vehicles.