In addition to the 80KWH battery pack that is stock on the International E-STAR, we are adding a secondary battery pack at 40KWH to suit the solar array installed on the roof, this will extend the range of the van considerably from 100 miles to well over the desired 150 mile range. The stock battery pack is charged by a level 2 charge controller, that can handle both 120 V (household) and 240 V (EV charging stations) charging applications. At 50 Amps the vehicle takes 10-14 hours to charge. Our secondary battery pack will be fed to a by a charge controller connected to the solar array on the roof then the energy will then be transferred through an inverter from one pack to another essentially charging ourselves. No more gas stations or charging stations.