Does charging in a car consume fuel or electricity?

[EthanLee]

Charging in a car consumes fuel, but it has minimal impact on fuel consumption. The consumed electricity will inevitably be replenished by the generator's operation, but the power loss from the charger is negligible, so the increase in fuel consumption is practically insignificant. Principle of in-car charging: The electrical energy used to charge a phone in a car comes from the chemical energy of burning gasoline. However, since the current required for phone charging is quite small, it consumes very little fuel, and the amount is negligible. Car charger: A car charger is an accessory designed to allow car owners to conveniently charge their digital devices anytime, anywhere using the car's power supply. Some high-end car chargers typically include two USB ports, enabling simultaneous charging for two digital devices. These products usually feature overload protection, short-circuit protection, high-voltage input protection, and high-temperature protection—four layers of safety functions to ensure secure usage.