The battery of the start-stop system vehicle cannot be replaced by ordinary battery. Because the performance of the Start-Stop auxiliary battery is designed to be higher than that of ordinary batteries, the service life of ordinary batteries will be reduced. From the experimental data, it can be inferred that the durability of ordinary battery is only one third of the start-stop battery, the start-stop engine battery can be used to replace the ordinary battery of ordinary high-equipped vehicles. At the same time, the replacement battery had better not power.