What is an EV Battery State of Charge (SOC)?
Introduction As the global adoption of electric vehicles (EVs) accelerates, one term continues to gain prominence among engineers, manufacturers, and drivers alike: State of Charge (SOC). In the simplest terms, SOC indicates the current energy level in an EV battery, expressed as a percentage of its full capacity. Much like the fuel gauge in a gasoline-powered car, SOC tells drivers how much energy remains in their battery pack and, by extension, how far they can travel before needing to recharge....