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How long is the life of a lithium battery

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Time of issue:2022-07-15 14:53
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(Summary description)I believe that most consumers have heard that the life of a lithium battery is "500 times", and 500 times of charge and discharge, more than this number of times, the battery will "end of life",

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How long is the life of a lithium battery

Categories:lithium ion battery News
Author:
Origin:
Time of issue:2022-07-15 14:53
Views:

Information

I believe that most consumers have heard that the life of a lithium battery is "500 times", and 500 times of charge and discharge, more than this number of times, the battery will "end of life", many friends in order to prolong the life of the battery, every time Does it really prolong the life of the battery by charging it when the battery is completely depleted? the answer is negative. The life of a lithium battery is "500 times", which refers not to the number of times of charging, but a cycle of charging and discharging.

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A charging cycle means that all the power of the battery is fully charged from full to empty, and then charged from empty to full, which is not equivalent to charging once. For example, a lithium battery is only half charged on the first day, and then fully charged. If the next day is still the same, that is, half of the charge, a total of two charges down, this only counts as one charge cycle, not two. However, this reduction in power is very small. High-quality batteries will still retain 80% of their original capacity after being charged for many cycles. Many lithium-ion battery-powered products are still used as usual after two or three years. Of course, the lithium battery still needs to be replaced after the end of its life.
The so-called 500 times means that the manufacturer has achieved about 625 rechargeable times at a constant depth of discharge (such as 80%), reaching 500 charging cycles.

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