EV battery

How to fix the lithium battery

by：Vglory 2021-04-24

Lithium batteries are now widely used. How can we save costs and bring dead lithium batteries back to life? Let me share with us. There are generally three situations in which lithium batteries experience suspended animation. First, the battery cannot be charged, the charger, The electrical appliances are unrecognizable, and the electrodes have no voltage. second. It can be charged, and the charger and electrical appliances can be identified, but it can only last for a few minutes, and the power is quickly exhausted. Third, it can be charged, and the capacity is still relatively sufficient, but the high current discharge voltage drops significantly (detailed performance such as: shooting with a camera can only last for a few minutes, and reviewing can last for a long time) 1, battery look He is dead, but there is a high probability that he can be saved. The method I summarized is: charge the battery with a direct current equal to the battery's planned voltage. Lithium battery How to repair the battery with voltage and no current 2. This dead battery cannot be charged with the original charger (there is no current through it), but the use is equal to the battery plan When charging the battery with DC voltage, you will find that there is a relatively large current, and this charging current will gradually decrease, and it will be close to 0 after a few minutes. This is good news: the battery voltage is recovering to the planned level. At this time, stop charging, and then use a multimeter to measure the battery's north and south poles to see if there is a normal voltage 3, and then you can use the original charger to charge it. 4. With this method, I amended a lot of batteries, and many of them can be recovered to about half of the planned capacity. Lithium battery How to repair the battery with voltage and without current 5. In order to fully activate the battery, it must be fully charged and discharged several times. The discharge circuit is composed of resistors and light-emitting diodes, and the state of discharge can be estimated through the light-emitting diodes. 6. As far as my experience is concerned, this method is very useful for the first battery. The latter two conditions of batteries are difficult to correct, and the materials found on the Internet are rarely of obvious use. In particular, the third type can be charged and has sufficient capacity, but the high current discharge voltage drops significantly (detailed performance such as: shooting with a camera can only last for a few minutes, while using the look back format can last for a long time) I'm really sorry to lose the battery. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How about lithium iron phosphate batteries?

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