What is the life of polymer lithium battery

Simple understanding, for example, a lithium battery used only half of its electricity on the first day, and then it was overflowing with electricity. If it is still the case the next day, that is, use half of the charge, and charge it twice in total. This can only be counted as one charging cycle, not two. Therefore, it may usually take several times to complete a cycle. Every time a charging cycle is completed, the power will decrease a bit. However, the reduction is very small. High-quality batteries will still retain 80% of the original power after being charged for many cycles. Many lithium-powered products are still used as usual after two or three years. This is the reason. Of course, the life of the lithium battery will eventually need to be replaced. The life of a lithium battery is generally 300 to 500 charging cycles. Assuming that the power supplied by a complete discharge is Q, if the reduction in power after each charging cycle is not considered, the lithium battery can supply or supplement 300Q-500Q of power in its life. From this we know that if you use 1/2 to charge each time, you can charge 600-1000 times; if you use 1/3 each time you charge, you can charge 900 to 1500 times. By analogy, if it is charged randomly, the number of times is variable. In short, no matter how it is charged, it is constant to add a total of 300Q to 500Q of power. Therefore, we can also understand it this way: the life of a lithium battery is related to the total charge capacity of the battery, and has nothing to do with the number of recharges. Deep discharge and deep charge and shallow discharge and shallow charge have little difference in the impact of lithium battery life. In fact, shallow charging and shallow charging are more beneficial for lithium batteries. Only when the product's power module is calibrated for lithium batteries, it is necessary to deep discharge and deep charge. Therefore, products powered by lithium batteries do not need to be constrained by the process. Everything is convenient and can be charged at any time without worrying about affecting the lifespan. If the lithium battery is used in an environment above the specified operating temperature, that is, 35°C or higher, the power of the battery will continue to decrease, that is, the battery's power supply time will not be as long as usual. If the device is charged at such a temperature, the damage to the battery will be even greater. Even if the battery is stored in a hot environment, the quality of the battery will be unprepared and cause corresponding damage. Therefore, keeping the operating temperature as suitable as possible is a good way to extend the life of the lithium battery. If the lithium battery is used in a low temperature environment, that is, below 4°C, the battery usage time will also be reduced. The original lithium battery of some mobile phones cannot even be charged in a low temperature environment. But don't worry too much. This is only a temporary situation, which is different from the use in a high-temperature environment. Once the temperature rises, the molecules in the battery will be heated, and they will immediately return to the previous power. To give full play to the maximum effectiveness of lithium batteries, it is necessary to use them frequently, so that the electrons in the lithium battery are always in a flowing state. If you don't use the lithium battery often, please remember to complete a charging cycle for the lithium battery every month and do a battery calibration, that is, deep discharge and deep charge once. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Simple analysis of lithium iron phosphate batteries