What is the lifespan of a battery with start-stop function?
2 Answers
The lifespan of a battery with start-stop function is approximately 40,000 kilometers or three years. A battery with start-stop function allows the car to automatically shut off when temporarily stopped and restart the engine when the car moves forward. Its functions include: energy saving and emission reduction, and reducing exhaust emissions. Batteries with start-stop function are divided into EFB and AGM. Situations where the start-stop function should be turned off include: 1. congested road sections; 2. uphill and downhill slopes; 3. when the air conditioning is in cooling mode; 4. driving through waterlogged sections; 5. low-speed parking. Car batteries, also known as storage batteries, have the following functions: 1. providing a strong starting current to the starter when starting the engine; 2. assisting the generator in supplying power to electrical equipment when the generator is overloaded.
Batteries with start-stop function, also known as start-stop specific batteries, are commonly used for urban commuting like mine, with a typical lifespan of 3-5 years. After four years of use, my car's battery started to become sluggish, and the start-stop function became less responsive. This is because frequent start-stop cycles cause rapid charging and discharging, accelerating aging, especially in heavy traffic where the system is constantly engaged, putting more strain on the battery. Compared to regular batteries with a lifespan of 4-6 years, the shorter lifespan of start-stop batteries is normal. To extend its life, try to avoid short trips, use highway cruising more often to reduce start-stop frequency, and turn off the start-stop system when parked to ease battery stress. During each maintenance visit, it's advisable to have the dealership check the battery voltage and health to avoid getting stranded. Opting for high-quality brands like AGM types can offer better durability.
