So today in my physics class we were learning about transformers, and how some (set-up transformers) can increase voltage and lower amps (much like Bernoulli's principle with liquids). Now I know with higher voltage it means lower amperage meaning less inefficiency in the car. This also allows for Optima yellow/red tops to be used at much higher voltage with better efficiency. The transformers also have a very high efficiency. So has anyone ever tried using a set-up transformer? Was it usefull? Or could this be a waste of time and energy?