18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

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3.7 volt 18650 lithium battery

release time:2024-09-03 Hits:     Popular:AG11 battery

Detailed explanation of charging new 3.7 volt 18650 lithium battery

 

When using lithium-ion batteries, it should be noted that the battery will enter a dormant state after being placed for a period of time. At this time, the capacity is lower than the normal value, and the use time is also shortened. However, lithium-ion batteries are easy to activate. As long as 35 normal charge and discharge cycles are performed, the battery can be activated and restored to normal capacity. Due to the characteristics of lithium-ion batteries themselves, it is determined that it has almost no memory effect. Therefore, during the activation process of the new lithium-ion battery in the user's mobile phone, no special methods or equipment are required. This is not only true in theory, but from my own practice, it is best to use the standard method of charging from the beginning. This natural activation method is the best.

 

Regarding the activation of lithium-ion batteries, many people say that the charging time must be more than 12 hours, and it must be repeated three times in order to activate the battery. This statement that the first three charges must be charged for more than 12 hours is obviously a continuation of the statement from nickel batteries (such as nickel-cadmium and nickel-metal hydride). So this statement can be said to be a misunderstanding from the beginning. The charging and discharging characteristics of lithium-ion batteries and nickel batteries are very different, and I can tell you very clearly that all the serious formal technical information I have consulted emphasizes that overcharging and over-discharging will cause great damage to lithium-ion batteries, especially liquid lithium-ion batteries. Therefore, it is best to charge according to the standard time and standard method, especially not to charge for more than 12 hours. Usually, the charging method described in the mobile phone manual is the standard charging method suitable for the mobile phone.

 

In addition, mobile phones or chargers with lithium-ion batteries will automatically stop charging after the battery is fully charged, and there is no so-called trickle charging for more than 10 hours as nickel-ion chargers. In other words, if your lithium-ion battery is fully charged, it is useless to put it on the charger. And none of us can guarantee that the characteristics of the battery's charge and discharge protection circuit will never change and the quality will be foolproof, so your battery will be on the edge of danger for a long time. This is another reason why we oppose long charging.

 

In addition, for some mobile phones, if you do not remove the charger after charging for more than a certain period of time, the system will not only not stop charging, but will also start a discharge-charge cycle. Perhaps the manufacturer has its own purpose for this practice, but it is obviously not good for the life of the battery and the mobile phone/charger. At the same time, long charging takes a long time and often has to be done at night. Judging from the situation of my country's power grid, the voltage at night in many places is relatively high and fluctuates greatly. As mentioned above, lithium-ion batteries are very delicate and are much less resistant to fluctuations in charge and discharge than nickel batteries, which brings additional risks.


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