An apparatus and method for replacing a power source element is provided. The apparatus includes a multiple compartment housing attached to a vehicle, power source elements, a controller, and a communications interface. The power source elements are placed within receptacles of the multiple compartment housing. Each power source element is electrically connected to an input power coupler for electrical connection to the vehicle such that each power source element is configured to supply power to the vehicle independently without requiring power supplied by any other power source element. The controller is configured to monitor a power level of each power source element and generate an associated power level reading. The communication interface is configured to retrieve each associated power level reading from the controller and to an external system.