Primary EV batteries are increasing in voltage up to 400V and 800V, putting tremendous strain on traditional solutions to efficiently deliver power to 12V and 48V loads without taking up valuable weight and space. And those 12V and 48V batteries are vestiges that cannot be replaced by the primary battery because those traditional solutions cannot replicate the fast response time of batteries. Eliminating those batteries would not only save additional space and weight, making EVs lighter, faster, and more energy-efficient, but in the case of the 12V lead-acid battery, it would also remove toxic waste from the environment.