Units of measurement

Voltage

Voltage is the electrical potential difference between two points and is measured in volts. In an EV charging system, voltage is one of the quantities that determines the power transferred to the vehicle. Battery packs and DC chargers operate across defined voltage ranges. A charger can supply high current and still be unable to deliver its headline power if the connected vehicle's battery voltage is too low for that power level. Vehicle architectures are often described loosely as 400 V or 800 V systems. Those labels refer to nominal architecture families rather than one fixed voltage throughout every operating condition. W