The development of China's lithium battery industry is very rapid, and it is used in more and more fields. It can be said that our scientific and technological life is inseparable from lithium batteries. Now the most used lithium batteries on the market are 18650 lithium batteries. Compared with traditional lead-acid batteries, lithium batteries have the characteristics of high open circuit voltage, low self-discharge, high discharge rate, wide operating temperature range, fast charging speed, no memory effect, and no pollution.

Yesterday, a user asked the editor, will the lithium battery be damaged if it is not used for a long time? The editor tells you: yes! ! !

New products that have never been used: Under normal circumstances, the national standard charge of the lithium battery pack is 30%. For example: 18650 battery pack with 14.8V/2200MAH capacity, the factory power is about 600-700MAH. However, the cells of the lithium battery pack will discharge themselves, which is what we usually call leakage.

There are many electronic components on the protection board of the battery pack, such as ICs, MOSs, capacitors, resistors, etc., which will continue to consume electricity by themselves, plus the self-discharge of the battery itself (all rechargeable batteries have, Lithium batteries, polymer batteries, lithium iron phosphate batteries, and nickel-metal hydride batteries are the same.) Although these self-discharge amounts are small, tens of microamps/hour, it can be ignored during normal use, but if If you don't use it for a long time, it's not too small after careful calculation. It is tens of microamps in an hour, and it may reach 1-2 Haoan.

In this case, taking 14.8V/2200MAH as an example, 30% of the power from the factory about 600-700MAH will be completely drained for more than a year. If the battery is assembled on the product, then add some electronics on the product. Components may leak faster and in less time. When the power of the lithium battery pack is completely dry, the cell separator paper is completely dry, and the electrolyte is completely "0", so it cannot be activated at all, and it cannot be charged back. Some customers may say, isn't it much better to fully charge the battery when you leave the factory? It is indeed much better for this problem, but it is very unsafe to leave the factory with a full battery, so the industry standard is that everyone 30% charged.

Used: Used until the battery pack is discharged to be protected, that is, the state of the battery is basically discharged (in fact, there is only a little residual power). Under normal use, when the lithium battery pack is discharged to the protection voltage, the protection board will automatically turn off. At this time, the lithium battery pack is nearly exhausted, but some residual power is about 5%. Under normal circumstances, it will be charged when it is used up. , Sometimes I am so busy that I forget to recharge after a few days. Basically, it is not a big problem to recharge after half a month and a month. But in this case, if you leave it for three or four months without charging it, it will almost be scrapped.

In response to these problems, as long as you do the following points, you will be fine:

*: If the new battery has never been used, please do not isolate it for too long. Especially if the new battery has not been used, don't throw it away for four or five months. If you really can't get it out in time, please remember to recharge the battery!

Second: If it has been shipped, it needs to be indicated to the customer on the product manual. If the new product is not charged for a long time, the battery will fail. If the battery is used under normal circumstances, it needs to be charged in a hurry after the battery is used up. Otherwise the battery will fail.

（Statement: The articles published on this website are all from the Internet and do not represent the views of this website. If there is any infringement, please contact to delete）