Yes, it should be replaced. Generally, the battery's power level is crucial for a car's operation. If the battery is down to around 45%, it is recommended that the owner replace it promptly. A low battery charge can easily result in the vehicle not starting or failing to power the car's electronic components, which could affect the car's functionality.
How to Determine If the Battery Needs Replacement
1：Difficulty Starting the Car: If the vehicle struggles to start or requires five or six attempts to turn over, the battery might be running low. In this case, you should quickly check the battery's charge and replace it if necessary.
2：Dimming Headlights: If the car's headlights appear dim while driving at night, it's likely that the battery is nearly drained. You should have the battery checked at a dealership or repair shop. If the battery charge is low, it should be replaced immediately to avoid compromising driving safety.
3：Battery Warning Light: If the battery warning light on the dashboard comes on while driving, stop the car in a safe location and check the battery. The warning light typically indicates a battery problem, so the owner should visit a dealership to have the battery replaced as soon as possible.
In summary, a car battery typically lasts between three to five years. However, some owners may illegally install high-power electronic components, which can severely deplete the battery. Therefore, car owners should regularly maintain their batteries and develop good driving habits, such as ensuring the vehicle is turned off and that the air conditioning and headlights are switched off before leaving the car.
