What aspects will affect the service life of lithium 3400mah 3.7v 18650 battery?

　　Aspect 1: The relationship between charge and discharge depth and battery charging frequency.

　　It can be seen from the data obtained from the experiment that the charging frequency of the battery is related to the charging depth. The heavier the charging depth, the less the charging frequency of the battery. Filling frequency * charge and discharge depth = frequency of filling within the total cycle. The more frequent filling within the total cycle, the more filling frequency * depth of charge and discharge = specific service life of the rechargeable battery (ignoring other factors)

　　Aspect 2: Overcharging, power loss, and large battery charging current.

　　Do not overcharge rechargeable batteries. Any overcharging method of lithium 3400mah 3.7v 18650 battery will cause serious damage to battery performance and even cause performance degradation. Do not charge or discharge below 2V or deep, as this will quickly and completely destroy the lithium battery. Internal metal plating may occur, resulting in short circuit failure, making the battery unusable or unsafe.

　　Most lithium 3400mah 3.7v 18650 battery have an electronic circuit inside the rechargeable battery. When the battery is charged or discharged, when the battery voltage is less than, exceeds, or when the rechargeable battery current exceeds a predetermined threshold, this power circuit will disconnect the rechargeable battery. . Do not use high-current battery charging and discharging, because high current will cause excessive pressure on the battery.

　　Aspect 3: The natural environment is over- or low-temperature.

　　The life of lithium 3400mah 3.7v 18650 battery is also greatly affected by temperature. When electronic products are started, an environment with a temperature below zero may damage the lithium battery, while an environment with an overtemperature will reduce the capacity of the battery. Therefore, if the laptop uses an external power supply for a long time without taking out the battery, the battery will be exposed to the heat emitted by the laptop for a long time and will soon become obsolete.

　　Aspect 4: The battery is fully charged and out of power for a long time.

　　Lithium battery power that is too high or too low will affect the battery cycle times. The repeatable battery charging frequency marked on most marketed household appliances or rechargeable batteries is based on 80% charge and discharge as a standard test. Experiments have shown that for some laptop lithium 3400mah 3.7v 18650 battery, the working voltage of the rechargeable battery often exceeds the standard working voltage in amperes. That is, when the voltage increases from amperes to amperes, the service life of the rechargeable battery will decrease. If the amperes are increased again, the service life will decrease. 1/3; the greater the charge, the greater the loss of the rechargeable battery. Being in a low or no-power state for a long time will cause the internal friction resistance of the rechargeable battery to the electronic devices to increase, thus causing the battery power to shrink.

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