The electrochemical performance of the extended battery used for emergency UPS fire power supply is superior to that of the series battery in industrial products, which determines whether the battery is qualified. Based on their electrochemical composition and electrode structure, we can see whether the battery is equivalent. The reactions between the internal structures of actual batteries are reversible. In theory, this is not affected by the number of cycles, and due to the reversible changes in electrode size and structure caused by charging and discharging, the internal design of the battery must support this change, because once the battery is discharged only once, its internal structure is much simpler and does not need to support this change. Therefore, the original battery cannot be charged. This is very dangerous. If repeated use is required, please choose a battery that has been cycled approximately 350 times, also known as a secondary battery or battery. To extend the lifespan of the battery, the following steps should be taken: check if the charger parameters meet the requirements of the battery charging parameters;

b. If the battery is matched with an electric vehicle, and the new battery is matched with an electric vehicle, a cycle time of 1.5 hours to 2 hours and a cycle time less than 1.5 hours will seriously affect the service life of the battery. The shorter the cumulative cycle time, the shorter the cycle time. The shorter the lifespan of the battery;

The slow starting process of electric vehicles can help extend the service life of the battery.

d. During the use of batteries, annual maintenance of charging and discharging can help extend the battery's lifespan.