What is the efficiency of a gasoline generator?

[HenryLee]

The current maximum efficiency of gasoline engines is found to be 40%. Below is relevant information about generators: Classification of generators: Automotive generators can be divided into DC generators and AC generators. Since AC generators outperform DC generators in many aspects, DC generators have been phased out. Symptoms of generator failure: Dimming of headlights or dashboard lights; Damage to the battery or accumulator. If the battery is undercharged or dead, the vehicle will continue to operate, but after a short time, the lights will dim again, indicating an issue with the charging system; Automotive generator belt. If the belt does not rotate freely, excess friction will cause the belt to heat up, producing a rubber-burning smell. If you detect a smell similar to an electrical fire, this may indicate that the alternator pulley on the belt is slipping, resulting in poor generator output.