 For safety, the batteries are contained in "safety boxes", which are designed, in the event of a problem, to direct fire or explosion through designated holes, and to help cool the cells normally.In the final version, the batteries will be able to be charged in the aircraft, while retaining the ability to be easily removed and swapped with other batteries.The design won the Lindberg Electric Aircraft Prize for the "Best Electric Aircraft Sub-System or Component Technology" at Airventure 2010, and at that time the first completion of a production aircraft was anticipated for the end of 2011.