Why Did the Battery Suddenly Lose Power?

[VanKingston]

There are generally the following reasons for a car battery losing power: 1. The car has been parked for a long time, causing the battery to discharge. Even when the car is idle, the battery naturally discharges due to its inherent characteristics, meaning it loses power even when not in use. Most modern cars are equipped with anti-theft systems that continue to operate while the vehicle is parked, requiring a certain amount of power. Additionally, alarm systems consume even more power when triggered by external forces that meet the sensitivity threshold. 2. The battery has reached the end of its lifespan. Most private vehicles today use maintenance-free batteries. To check the battery's condition, clean the inspection window on the battery and observe the color inside: green indicates the battery is functioning normally; black means the battery voltage is low and needs charging; white signifies the battery has reached the end of its life, and the only solution is to replace it with a new one.