Yes, it does make a difference to your car if you start with many components like the radio, air conditioner, etc., on or off. When you start your car, the engine has to work harder to power all the electrical components that are switched on. This can place extra strain on the battery and the alternator, which is responsible for charging the battery and supplying power to the electrical system.
Starting your car with multiple components on, especially the air conditioner, can lead to a momentary drop in engine performance as the engine has to overcome the additional load. It might cause your car's engine to crank more slowly, and in extreme cases, it could even drain the battery to the point where the car won't start.
To minimize the strain on your car's electrical system and battery, it's a good practice to turn off all non-essential electrical components before starting or shutting down the engine. Here are some tips to follow:
Before starting the engine: Turn off the radio, air conditioner, headlights, and any other electrical accessories.
Before shutting down the engine: It's not crucial to turn off all accessories before shutting down the engine, but it's a good habit to do so. This helps prevent a surge of power demand when you start the engine next time.
By following these practices, you can prolong the life of your car's battery and alternator and reduce the strain on the engine during startup. Additionally, it's essential to keep your car's electrical system well-maintained to ensure everything functions properly and efficiently. Regular battery checks, clean connections, and electrical system inspections are recommended to avoid any unexpected issues.