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Can lithium battery be placed for a long time without breaking

(Summary description)Can lithium battery be placed for a long time without breaking

Can lithium battery be placed for a long time without breaking

(Summary description)Can lithium battery be placed for a long time without breaking


The industry development of lithium battery is very rapid, used in the fields more and more widely. That is to say that our life of science and technology has been inseparable from the lithium battery. Compared with traditional lead-acid battery, lithium battery has the advantages of high working voltage, low self-discharge, high discharging rate, wide working temperature range, fast charging, no memory effect and no pollution.


So can lithium battery be placed for a long time without breaking? Now let's talk about this problem.


New products that have never been used: under normal circumstances, the output of lithium battery pack is 30% of the national standard. For example, for the 18650 battery pack with 14.8v /2200mAh capacity, the ex-factory battery capacity is about 600-700mah. But the cells in a lithium-ion battery pack discharge by themselves, commonly known as leakage.


Battery protection board has a lot of electronic components, such as IC, MOS, capacitance, resistance and so on, theirs will also continue to the consumption of electricity, plus batteries own self-discharge (all rechargeable batteries, lithium batteries, polymer batteries, lithium iron phosphate battery, nickel metal hydride batteries are the same) although the self-discharge volume is small, a few microamps/hour like this, in the process of normal use of a few call can slightly, but if long time need not, be it is not small, one hour a few microamps, then could reach 1-2mA.


In this case, for example, 14.8V/2200mAh, 30% of the factory's power of about 600-700mAh is completely leaked for more than a year. If the battery is assembled on the product, then some of the electronics on the product are added. Components may leak faster and take less time. When the power of the lithium battery pack is completely dry, the cell diaphragm paper is completely dried and the electrolyte is completely “0”, and it cannot be activated at all, and it cannot be recharged. Some customers may say that it is not much better to fully charge the battery when you leave the factory. It is really better for this problem, but if the factory power is full, it is very unsafe, so the industry standard is that everyone is 30% charged.


Products that have been used: When the battery pack is discharged and is protected, that is, the battery is basically discharged (in fact, there is only a little power remaining). In the normal use case, when the lithium battery pack is discharged to the protection voltage, the protection board is automatically turned off. At this time, the lithium battery pack is nearly exhausted, but some of the remaining power is about 5%, and it will be charged when it is used up under normal conditions. Sometimes, when I am busy, I forget that after a few days, I have nothing to do. I basically refilled after half a month and a month. The problem is not big. However, if this is used up, if you put it three or four months without charging it, it will almost be scrapped.


In view of these problems, as long as you do the following points will be no problem.


Firstly: if the new battery has never been used, please do not leave it too long, do not throw away four or five months. If you really can't be taken out in time, please remember to recharge the battery!


Secondly: if the goods have been shipped, it is necessary to specify in the product manual to the customer. The battery will fail if the new product is not charged for a long time. If the battery is used up under normal conditions, it should be charged immediately, or the battery will fail.



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