Why is the battery warning light on the dashboard showing red?

[IrisLee]

The reasons for the red battery warning light on the dashboard are as follows: 1. Charging controller malfunction: The vehicle's battery charging controller has failed, preventing the battery from charging properly. 2. Low battery power: The vehicle battery is discharged, which is normal if the vehicle has been parked for a long time without starting. The battery needs to be recharged before use. Precautions: 1. Replace with the same model: The replacement battery must be of the same model as the original vehicle battery. If conditions permit, you can replace it with a battery of the same brand. 2. Auto start-stop function: For vehicles with an engine auto start-stop function, note that the replacement battery must support the engine start-stop function to ensure normal operation and extend the battery's service life.