Charging a smartphone in a car consumes a negligible amount of fuel, with the impact on mileage being extremely small. The car's alternator supplies power to the charger, drawing energy from the engine, which in turn uses fuel. While technically consuming gas, the energy required by a phone charger is minimal compared to other car systems like air conditioning. Charging a phone while the engine is off can draw from the car's battery, but this is unlikely to drain it unless the battery is old or the car has been unused for a long time. AI
RANK_REASON Article discusses a common user behavior and its impact, providing an explanation rather than announcing a new development.
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