How Long Does a Mild Hybrid Car Battery Last?

[VanHarrison]

The lifespan of a mild hybrid car battery is generally between 3 to 5 years, depending on the owner's usage habits. Some brands equip their vehicles with a 48V mild hybrid system, which features a smaller motor power and battery capacity. Signs of a failing car battery include: 1. Difficulty starting the car: If the car suddenly becomes hard to start without other factors, it may be a sign that the battery is about to fail. 2. Dimming lights during idle: For example, when waiting at a red light or temporarily parked, the headlights may suddenly dim. This is because the engine's charging power decreases during idle. 3. Battery warning light on: When the battery warning light comes on, it reminds the owner to have the battery inspected and repaired at a service center. 4. Normal driving but occasional complete power loss after parking and restarting: This occurs because as the battery nears the end of its life, the starting current becomes insufficient, leading to increased oxidation at the battery terminals and resulting in a complete power loss issue.