Lithium batteries have a self-discharge phenomenon. If the battery voltage is stored below 3.6V for a long time without being used, it will cause the battery to over-discharge, damage the internal structure of the battery, and shorten the life of the battery. Therefore, lithium batteries stored for a long time need to be recharged every 3 to 6 months, that is, they should be charged at a voltage of 3.8 to 3.9 V (the Optimal storage voltage of lithium batteries is approximately 3.85 V) and do not recharge them. be fully charged.
Detailed information:
Lithium-ion batteries must remain above the minimum operating voltage at all times. Excessive low voltage discharge or self-discharge reactions will result in decomposition and destruction.action of lithium. -Ionic active materials and will not. It can certainly be restored.
Any form of overcharging lithium-ion batteries will result in serious damage to battery performance or even an explosion. Lithium-ion batteries should avoid overcharging the battery during the charging process.
Do not frequently discharge or deeply charge. However, every 30 charging cycles, the power detection chip will automatically perform deep discharge and deep charge to accurately assess the battery condition.
Lithium batteries usually last for several years
Hello, I am a technician from Foster New Energy, I can tell you this from my professional knowledge. It will become useless if not used for a long time. Over time, its blood pressure will drop. When the voltage drops, the capacity will also drop by half without using itr for a few years, you should use it often. can help you
The lifespan of a lithium battery is not calculated in years, but in cycles.
The lifespan of a lithium battery is “500 times”, which does not refer to the number of charges, but to one cycle of charging and discharging.
Nowadays, cell phones use lithium batteries. The number of cycles of most lithium batteries is generally about 500 times, that is, 0 to 100 corresponds to one cycle (a cycle of 100 corresponds to one cycle). reached 500 times, the mobile phone battery has already weakened, the internal resistance of the battery has increased, the activity of chemical elements inside has decreased, and it has entered a rapid consumption stage.
Everyone has had this experience. A very old cell phone turns off after making a call after being fully charged. IslandIt's understandable that the battery is exhausted.
Detailed information:
A charge cycle means that all the battery power is used from full to empty, then loaded from empty to empty. The process to reach full capacity is not the same as charging it once. For example, a lithium battery only uses half its power the first day, then it is fully charged. If it is still the same the next day, i.e. if you charge it half and charge it twice in total, this can only be counted as one charging cycle and not two.
Therefore, multiple charges may typically be required to complete a cycle. Each time a charge cycle is completed, the battery capacity decreases a little. However, this reduction in power is very small. High quality batteries retain 80% of their original capacity after severalrs charge cycles. Many lithium-ion powered products are still used as usual after two or three years.
Reference materials:
Baidu Encyclopedia-Lithium battery