Can I turn on the car air conditioning without starting the engine?

[AliyahLee]

It is possible to turn on the car air conditioning without starting the engine, but the air conditioning will not have cooling functionality. After using it for a while, the car battery will lose power, making it difficult to start the engine. When the air conditioning is turned on without the engine running, the air blown out is just natural air from the blower, because the air conditioning compressor is driven by the engine's power. With the engine off, the compressor naturally won't operate. The blower's natural air is powered by the car battery. Prolonged use of the air conditioning without starting the engine will drain the battery, potentially leaving the car unable to start or causing long-term battery depletion. This scenario applies only to traditional fuel-powered vehicles; new energy vehicles do not face this issue.