What are the reasons for a car not holding a charge?

[SanAlessandra]

The reasons for a car not holding a charge: 1. Deep discharge: This means that when the vehicle is turned off, the car's equipment inside is still in a working state, continuously consuming the battery's power; 2. Aging generator belt: The engine directly drives the generator through the belt, and the generated electricity is rectified and stabilized before directly charging the car battery. If the belt is faulty, it can lead to a failure to charge, and it needs to be replaced promptly. The car battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. The longer the battery remains idle in a discharged state, the more severe the damage. When the battery is not in use, it should be charged once a month to extend its lifespan.