What does a red battery light on the car mean?

[VeraFitz]

A red battery light on the dashboard is a warning light indicating the generator is not producing electricity. Here is relevant information about the red battery light: 1. Principle: A generator is a mechanical device that converts other forms of energy into electrical energy. There are many types of generators, but their working principles are all based on the laws of electromagnetic induction and electromagnetic force. Therefore, the general construction principle is to use appropriate magnetic and conductive materials to form magnetic and electric circuits that interact electromagnetically to generate electromagnetic power. 2. Precautions: Regularly clean accumulated dirt and dust on the generator's surface to maintain cleanliness and good ventilation. Frequently check the tightness of all fasteners related to the generator and promptly tighten all screws. The tension of the drive belt should be appropriate. If it's too loose, it may slip and cause insufficient power generation; if it's too tight, it may damage the belt and the generator bearings.