What is the life span of a lithium polymer battery?

The lithium polymer battery can be used for several years. How old is the lithium polymer battery? How old? The correct statement is that the life of the lithium battery is related to the end of the charging cycle, and has no direct relationship with the charging cycle. At the end of each charging cycle, the charge will decrease a bit. But the reduction is very small. A high-quality battery can still maintain 80% of the power after multiple cycles. This is why many lithium-ion products are still in use after two or three years. Of course, there is still a need to replace the lithium battery at the end of its life. It is usually about five years. Simply put, for example, a lithium battery uses half of its power on the first day and then recharges it. Assuming that the same thing happened the next day, you can charge it in half the time and charge it twice in total. This is one charging cycle, not two. Therefore, it may take several recharges to complete a cycle. At the end of each charging cycle, the charge will decrease a bit. But the reduction is very small. A high-quality battery can still maintain 80% of the power after multiple cycles. This is why many lithium-ion products are still in use after two or three years. Of course, when the lithium battery is old enough, it still needs to be replaced. The service life of lithium batteries is generally 300 to 500 charging cycles. Assuming that the power supply for a complete discharge is Q, the lithium battery can supply power or compensate for the power of 300q-500q during its service life, regardless of the power reduction of each charging cycle in the future. So we know that if we use 1/2 charge each time, we can charge 600-1000 times; if we use 1/3 charge each time, it can be charged 900 to 1500 times. For example, assuming random charging, the number of charging times is variable. In short, no matter how you charge, you can always compensate for 300Q to 500Q of power. Therefore, we can also understand that the life of a lithium battery is related to the total power of the battery, and has nothing to do with the amount of power. There is no difference in the impact of deep discharge and shallow discharge on the life of lithium. In fact, shallow discharge and shallow charge are more beneficial to lithium batteries. Only when the product's power module calibrates the lithium battery, deep discharge and deep charge are required. Therefore, products powered by lithium batteries do not have to adhere to the process, everything is first, charge at any time, and do not worry about the impact on life. Assuming that the operating temperature of lithium is above 35°C, which is higher than the normal operating temperature, the power of the battery will continue to decrease, which means that the battery's power supply time will not be as long as usual. Taking into account the temperature, charging the device will be more destructive. Even if the battery is stored in a high-temperature environment, the quality of the battery cannot be prevented from being damaged. Therefore, maintaining a proper operating temperature is a good way to extend the service life of lithium batteries. 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: Correct use of lithium batteries in smart phones