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How many years does the lifespan of lithium-ion batteries last? The lifespan and charging cycle of lithium-ion batteries. The lifespan of lithium-ion batteries is 3-5 years, and they have strict charging cycles, usually around 1000-1200 times. The lifespan of lithium-ion batteries is not related to the number of charges, but rather to the charging and discharging cycles. Lithium ion batteries can generally be fully charged and discharged for 300-500 charging cycles, beyond which the battery cannot be used. Of course, this can only be used as a reference.

How many years does the lifespan of lithium-ion batteries last?

The service life of lithium-ion batteries is only two to three years. Lithium ion batteries can generally be charged and discharged 300-500 times. It is advisable to perform partial discharge on lithium-ion batteries instead of complete discharge, and to prevent frequent complete discharge as much as possible. Once the battery is taken off the production line, the clock starts to move. Regardless of whether you use it or not, the lifespan of lithium-ion batteries is only two to three years. The lifespan of lithium-ion batteries is not calculated in years, but in cycles. The lifespan of power lithium-ion batteries can reach 2000 cycles, and the lifespan of lithium-ion batteries is generally expressed by the number of charges. The specific service life depends on usage habits and environment.

There are many factors that determine the service life of power lithium-ion batteries, including the characteristics of the system itself, as well as manufacturing processes and operating conditions. A high-quality battery system, combined with scientific system management, can achieve a long service life. For lithium-ion batteries in new energy vehicles, their lifespan is mainly calculated based on the number of cycles the battery is fully charged and discharged. Generally speaking, the service life of lithium-ion batteries is only about 6 to 10 years.

The theoretical lifespan tested by a lithium-ion battery manufacturer on a production line under experimental conditions may not necessarily be achievable for your battery. For your battery, it is: actual charging times x discharge depth=actual battery lifespan. Once the concept of cycle life is clarified, we can distinguish it from what sellers/consumers refer to as "charging times" and "charging years".

Some factors can affect the service life of lithium-ion batteries, such as the magnitude of current and voltage, the temperature of the environment, and the maintenance of battery capacity during idle. It should be pointed out that the natural lifespan of lithium-ion batteries ultimately has an upper limit. The commonly used method of "extending the lifespan of lithium-ion batteries" actually refers to the correct use and maintenance of lithium-ion batteries to release more energy that can be released.

The lifespan and charging cycle of lithium-ion batteries

The lifespan of a lithium battery is generally 300-500 charging cycles. Assuming a complete discharge supply of 1Q of electricity, without considering the decrease in electricity after each charging cycle, a lithium battery can supply or supplement a total of 300Q-500Q of electricity during its lifespan. From this, we can understand that if you charge with 1/2 each time, you can charge 600-1000 times; If 1/3 is used each time to charge, it can be charged 900-1500 times. Similarly, if charged randomly, the number of times is uncertain. In short, no matter how it is charged, the total amount of electricity replenished from 300Q-500Q is constant.

The lifespan of lithium-ion batteries is related to the total charging capacity of the battery, and is independent of the number of charges. The impact of deep discharge and shallow discharge on the lifespan of lithium batteries is not significantly different. In fact, shallow discharge and shallow charging are more beneficial for lithium batteries. Only when the power module of the product is calibrated for lithium batteries, is there a need for deep discharge and deep charging.

In daily life, it may take several charges to complete a cycle. Every time a charging cycle is completed, the battery capacity will decrease slightly. However, the reduction in battery capacity is very small. After multiple cycles of charging, high-quality batteries still retain 80% of their original capacity. Many lithium-ion powered products are still used as usual after two to three years. Of course, lithium batteries still need to be replaced at the end of their lifespan.

In fact, the battery life of lithium-ion electronics is determined by the charging cycle. Taking the iPhone battery as an example, after completing 500 charging and discharging cycles, the battery capacity will decrease to 80% of the original battery capacity.

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