Why are 48-volt electric systems better?A 48-volt system lowers “resistive loss.” Cramming all the energy through 12-volt systems creates more resistance, so the system needs more electrical energy. Cars’ climate controls, driver-assistance systems, and infotainment features require more electricity. Because of their higher electric current, 48-volt systems lose less energy and allow electric components to respond faster. In addition, going to 48 volts means wiring looms will need to change to carry higher voltage. But the wires used in a 48-volt system can be a smaller gauge, so they’re lighter weight and cheaper. That’s another advantage.