The Service Life of LiPo Battery

What is the lifespan of lithium polymer batteries? How many years can it last? To put it correctly, the lifespan of a lithium battery is related to 

the number of completed charging cycles, and not directly related to the number of charging cycles.

Every time a charging cycle is completed, the battery level will decrease slightly. However, the reduction is very small. After multiple cycles of 

charging, high-quality batteries still retain 80% of their original battery capacity. Many lithium-ion powered products continue to be used as 

usual after two to three years, which is why. Of course, lithium batteries still need to be replaced at the end of their lifespan. Usually around 

five years.

Simply put, for example, a lithium battery only uses half of its capacity on the first day and then fully charges it. If it continues like this the next 

day, charging half of it and charging it twice in total, this can only be counted as one charging cycle, not two.

Therefore, it may usually take several charges to complete a cycle. Every time a charging cycle is completed, the battery level will decrease 

slightly. However, the reduction is very small. After multiple cycles of charging, high-quality batteries still retain 80% of their original battery 

capacity. Many lithium-ion powered products continue to be used as usual after two or three years, which is why. Of course, lithium batteries 

still need to be replaced when their lifespan reaches the end.

The lifespan of a lithium battery is generally 300-500 charging cycles. Assuming a complete discharge provides Q of electricity, without 

considering the decrease in electricity after each charging cycle, a lithium battery can provide or supplement a total of 300Q-500Q of 

electricity during its lifespan.

From this, we know that if you charge half of it each time, you can charge 600-1000 times; If one third is used each time to charge, it can be 

charged 900-1500 times. Similarly, if charging randomly, the number of times is uncertain. In short, no matter how it is charged, the total 

amount of electricity replenished from 300Q to 500Q is constant. So, we can also understand it this way: the lifespan of a lithium battery is 

related to the total charging capacity of the battery, and not to the number of charges. The impact of deep discharge and shallow discharge 

on the lifespan of lithium batteries is not significantly different.

In fact, shallow discharge and shallow charging are more beneficial for lithium batteries. Only when the power module of the product is 

calibrated for lithium batteries, is there a need for deep discharge and deep charging. So, products powered by lithium-ion batteries do 

not have to be limited to the process. Convenience is the top priority, and you can charge them at any time without worrying about affecting 

their lifespan.

If lithium-ion batteries are used in environments above the specified operating temperature, which is 35 ° C or higher, the battery's charge 

will continuously decrease, and the battery's power supply time will not be as long as usual. If the device needs to be charged at such a 

temperature, the damage to the battery will be greater. Even storing batteries in hot environments will inevitably cause corresponding 

damage to their quality. So, keeping it at an appropriate operating temperature is a good way to extend the lifespan of lithium batteries.

If lithium batteries are used in low temperature environments, such as below 4 ° C, it will also be found that the battery life is reduced. 

Some original lithium batteries on mobile phones may not even be able to charge in low temperature environments. But don't worry too 

much, this is just a temporary situation. Unlike when used in high-temperature environments, once the temperature rises, the molecules 

in the battery are heated and immediately return to their previous level of charge.

To maximize the efficiency of lithium-ion batteries, it is necessary to use them frequently to keep the electrons inside the battery in a flowing 

state. If you don't use lithium batteries frequently, please remember to complete one charging cycle and perform a battery calibration once a 

month, that is, deep discharge and deep charging once.