Sprinter Van Electrical System Kit . Because the starter battery isn’t very big, most conversion vans use a separate 12 volt power system to run lights, a fridge, fans, chargers, power for a diesel heater and so on. Every electrical system we install starts with a sprinter battery, because nothing else delivers the power, longevity, and flexibility of these lithium iron phosphate (lifepo4) batteries. 12v electrical system Hema Map Landcruiser Electricity, Cargo trailer from www.pinterest.com Because the starter battery isn’t very big, most conversion vans use a separate 12 volt power system to run lights, a fridge, fans, chargers, power for a diesel heater and so on. Every electrical system we install starts with a sprinter battery, because nothing else delivers the power, longevity, and flexibility of these lithium iron phosphate (lifepo4) batteries.