Our 144 4x4 van has the power to go the distance with six Battle Born Batteries 100 amp hour batteries. How to fit these in the van without taking up critical cargo space? Easy - we mount the spare tire on one of our spare tire racks and use the space under the van for an aluminum, insulated, and heated enclosure custom made in our shop. Built to be weather resistant to provide long term care free reliable with exterior mounted lithium batteries collecting power from dual alternators, or captured through the sun’s rays on the roof mounted solar panels.