Lithium polymer battery life is how long?

Source: 2020 - 04 - 02 land hits: first lithium polymer battery can be used for several years the lithium polymer battery have how old? How many years? The correct statement is a lithium battery life is related to the end of the charging cycle, and have no direct relationship with the charging cycle. At the end of each charge cycle, charging will reduce a little. But lower amplitude is small, a high quality of battery after many times cycle remained 80% of the battery, which is why many lithium-ion products in two or three years later still in use. Of course, at the end of the lithium battery life is still changing demand. Usually around five years. , in a nutshell, lithium batteries, for example, use half of the charge on the first day, and then charging. Assuming that the next day the same thing happened, you can use to charge it in half the time, a total of two electric charge, it is a charge cycle, instead of two. Therefore, may take a few time charge to complete a cycle. At the end of each charge cycle, charging will reduce a little. But lower amplitude is small, a high quality of battery after many times cycle remained 80% of the battery, which is why many lithium-ion products in two or three years later still in use. Of course, when the lithium battery is enough old, it still need to be replaced. Lithium battery service life of the general is 300 ~ 500 times charging cycle. If a completely discharge power supply for Q, without considering the future of each charge cycle under the condition of power cut, lithium battery within its service life can be power supply or compensation Q - 300 500 q of electricity. Every time so we know that if we use 1/2 charge, we can charge 600 - 1000 times; Assuming that each time with a third of the charge, it can be charging time 900 to 1500. For example, suppose that random charging, charging times is variable. In short, no matter how you charge, the total power can compensate 300 q and 500 q. Therefore, we can also understand, lithium battery life is associated with the total power of the battery, has nothing to do with how much power. Deep discharge and shallow discharge no difference influence on the service life of lithium. Actually shallow discharge light charging more favorable to lithium batteries, only when the products of power module calibration for lithium battery, only need to be deep deep discharge charge. Therefore, the use of lithium electric power supply of the products don't have to adhere to the process, all for the first, charging at any time, don't worry about life. Assuming that the use of lithium temperature above 35 ℃, higher than the normal operating temperature, battery power will continue to reduce, which means that the battery power supply time not so long as usual. Considering the temperature, recharge equipment will be more damaging. Even if the battery is stored in high temperature environment, the battery quality also would inevitably suffer. Therefore, to keep the appropriate operating temperature is a good way to prolong the service life of the lithium battery.