The cycle life of lithium batteries has great advantages over lead-acid batteries and nickel-metal hydride batteries. In particular, lithium iron phosphate batteries have a cycle life of up to 4000 weeks, which is almost ten times that of lead-acid batteries.

　　However, it is meaningless to evaluate the actual life of the battery by the number of theoretical cycles, because there are unpredictable conditions such as the depth of charge and discharge, the use environment, and the use condition during actual use.

　　So, how can we extend the actual service life of lithium batteries?

　　1. Maintain 30-50% remaining capacity during storage

　　The advantage of doing this is to keep the internal chemical substances of the lithium battery in suitable working conditions, so that it can maintain a stable state.

　　2. Do not use at high temperature or low temperature

　　Lithium batteries do not like too high or too low temperatures, because this will greatly reduce the actual life of the lithium battery. The most suitable operating temperature for lithium batteries is 20-25 degrees Celsius.

　　3. Avoid frequent deep charge and discharge

　　Although lithium batteries have no memory effect, frequent deep charge and discharge will cause certain cumulative damage to the internal chemical structure of lithium batteries. Maintaining the use of 50-80% DOD is a reasonable way of use.

　　4. Avoid excessive charging and discharging

　　Although lithium batteries have higher charging or discharging rate characteristics, often charging and discharging at high rates will cause the chemical substances inside the lithium battery to accelerate aging. It is a safe way to use the rate in accordance with the lithium battery's instructions.

　　Lithium-ion battery (LIB) has become the main energy storage solution in modern social life. Among them, lithium iron phosphate batteries are a perfect replacement for lead-acid batteries, and they are the first choice for grid-connected peak shaving, off-grid energy storage, photovoltaic energy storage, UPS, data center and other industries.

　　The above methods for extending the actual service life of lithium batteries are not difficult to achieve. The key point is to have a sufficient in-depth understanding of lithium batteries.