How long is the life of lithium batteries in general?

Correct Lithium Battery Charging Method How long is the lifespan of the Lithium battery? 1. Recharge the new battery. Generally, the new battery should be activated. After the battery is left for a period of time, it will enter the dormant state. At this time, the capacity is lower than the normal value and the use time is shortened. So to activate. The activation method of lithium battery is very simple. Only through 3-5 normal charge and discharge cycles can the battery be activated and normal capacity can be restored. Charging the old battery 1. Charging method The old battery is a battery that is repeatedly charged and discharged, not an obsolete battery. The life of a lithium battery has nothing to do with the number of charge and discharge. It has no recall effect. Don't use the battery because there is no electricity to charge. It is best to charge the battery as much as possible when you can charge. The charging time is 2-3 hours. Of course, you don't have to be fully charged. 2. Charging voltage The safe operating voltage plan of lithium battery is 2.8~4.2V, lower or higher than this voltage plan, lithium ion becomes very unstable in the battery, and even poses a problem. To ensure that the battery is on a safe schedule, a special charger is required. These chargers actively adjust the charging method according to the current state of the battery. Lithium batteries must be charged with special chargers to ensure the safety of charging. When the charger is working, it uses a stable current to charge the battery. As the battery voltage increases, the charger increases the charging voltage while also accelerating the charging speed. When the battery reaches 4.2v cut-off voltage, the battery charge is about 70% (not fully charged). At this time, the charger continues to charge the battery with a stable voltage and gradually decreasing current. When the charger is charging at a value less than 0.1A, it can still detect that the battery voltage continues to rise before stopping charging. 4. Responsible for lithium batteries that are not used regularly for a long time, should be in a half-charged state, and live in a cool, dry place. Fully charged storage is dangerous and the battery will be damaged. Without charging and storing, the battery may be damaged and lose its function. During the storage process, every 3-6 months, a charging cycle must be completed and a power calibration must be done. How long is the life of a lithium battery? Generally, a lithium battery can be fully charged for 300 to 500 times. If this number is exceeded, the battery cannot be used. Of course, this can only be used as a reference. The life of a lithium battery has nothing to do with the number of recharges, but with the charge-discharge cycle, that is, the number of times from zero charge to full charge. The charging cycle refers to the capacity of the battery from full to empty, and then from empty to full, which is different from charging. For example, a lithium battery uses half of its power on the first day, and then is fully charged. 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. In daily life, it may take several recharges to complete a cycle. After each charge, the battery capacity will drop a bit. However, the fluctuations are small, high-quality batteries can still maintain 80% of the original capacity after repeated charging, and many lithium-ion products are still in use after two or three years. Of course, the life of the lithium battery after use still needs to be replaced. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.