The lifespan of Mild Hybrid batteries typically ranges from 3 to 8 years, with the specific duration influenced by technical architecture, driving habits, and maintenance conditions. Since 48V mild hybrid systems only handle light-load tasks such as start-stop assistance and kinetic energy recovery, the cycle life of their lithium batteries can exceed 4,000 cycles. Calculated based on an annual driving distance of 20,000 kilometres, the lifespan can reach approximately 6 years under standard usage. Different brands' technical solutions lead to variations: for example, models equipped with ISG integrated motor systems typically have a battery lifespan of 6-8 years, while those with BSG systems mostly range between 3-5 years. Mainstream automakers such as Mercedes-Benz and Geely offer warranties exceeding 3 years or 100,000 kilometres. High-end models can reduce the battery pack temperature differential by 5-8℃ through optimized thermal management systems (e.g., liquid cooling technology), significantly decelerating aging. If replacement is required, BSG system batteries cost approximately 8,000-15,000 Ringgit, while ISG systems range from 20,000-30,000 Ringgit. However, with proper maintenance, most batteries can last through the vehicle's primary service life.
