The lifespan of lithium batteries is only two to three years. Lithium batteries can generally be charged and discharged 300 to 500 times.
It is better to partially discharge the lithium battery than to fully discharge it, and try to avoid frequent full discharges. Once the battery leaves the production line, the clock starts ticking.
Whether you use it or not, the lifespan of lithium batteries is only two to three years. The lifespan of a lithium battery is not calculated in years, but in cycles. The lifespan of a power lithium-ion battery can reach 2,000 cycles. The lifespan of a lithium battery is generally expressed in terms of the number of charges. The specific lifespan depends on usage habits and environment.
Lithium battery life and charging cycle
TheLifespan of a lithium battery is typically 300 to 500 charge cycles. Assuming that the power provided by a full discharge is 1Q, if the power reduction after each charge cycle is not taken into account, the lithium battery can provide or supplement a total of 300Q to 500Q of power over of its lifespan.
From this we know that if you charge 1/2 each time, you can charge it 600 to 1000 times; if you charge it 1/3 each time, you can charge it 900-1500 times. By analogy, if it is charged randomly, the number of times is uncertain. In short, no matter how you charge it, the total amount of electricity added is 300Q to 500Q, which is constant.
The lifespan of a lithium battery is related to the total charge capacity of the battery and has nothing to do with the number of charges. There is little difference in the impact of a deep discharge, a pr chargewave and surface discharge over the life of lithium batteries. In fact, shallow discharge and shallow charge are more beneficial for lithium batteries. Deep discharge and deep charge are only necessary when the product's power module is calibrated for lithium batteries.
In daily life, it usually takes several charging cycles to complete a cycle. Each time a charge cycle is completed, the battery capacity decreases a little. However, this power reduction is very small. High quality batteries retain 80% of their original capacity after being charged several times. Many lithium-ion powered products are still in use after two or three years. Of course, lithium batteries still need to be replaced once their lifespan is reached.