Analyze the remedy after over-discharge of 18650 lithium battery

Remedy after over-discharge of 18650 lithium battery Hello, everyone. I saw many friends on the Internet asking how to make up for the over-discharge of the 18650 lithium battery. Most people don't know the battery very well, don't know how to use it correctly, and accidentally put the lithium battery away. Now most electric bicycles use 18650 lithium battery packs. Some people like to ride a complete power failure, which creates an over-discharge of the battery, and the life of the lithium battery is affected. However, some people are still ignorant, the time is not long, and the lithium battery is not used, and it is suspected that it is not a battery. The battery is actually not enough. Know that it is not well maintained. If it is serious, it is possible to lead directly to the charging point. Excessive charging and discharging of lithium batteries can cause permanent damage to the positive and negative electrodes. Excessive discharge will lead to the breakdown of the negative carbon layer structure, which will lead to the 18650 lithium battery charger 18650 lithium battery charger, I hope everyone pays attention to the maintenance of the 18650 lithium battery. Fortunately, 18650 lithium batteries are not equivalent to nickel-metal hydride batteries and nickel-cadmium batteries. The 18650 battery has no charge and discharge memory, so do not empty the remaining power before charging. Easy to use, easy to charge, and does not affect the service life and capacity. So when the battery is over-discharged, there is a way to make up for it. Complete the maintenance of the 18650 lithium battery design of the repair board. Maintain the over-discharge circuit during the packaging process and maintain the discharge circuit board. In order to prevent the discharge state of the 18650 lithium battery, when the battery voltage is lower than its passing discharge voltage test point, that is, the activation discharge maintenance, stop the discharge, and maintain Backup battery in the form of low quiescent current. Over-current and short-circuit maintenance: When the lithium battery discharge current is too large or a short-circuit occurs, the maintenance device will start the over-current maintenance function. If it is over-discharged and not charged immediately, the voltage of the 18650 lithium battery itself is too low, and the repair circuit board will be in a power-off state, and the charging process cannot be completed. What is the solution? I will show you a way to compensate for the over-discharge of lithium batteries in 18650. Please look down: Remedy: Separate the maintenance panel of the 18650 lithium battery from the battery, and use a mobile phone charger with an output voltage of 5V. Connect the two positive and negative electronic wires of the charger directly to the positive and negative electrodes of the 18650 lithium battery for charging. But one thing to note is that the charger is negative and the positive and negative electrodes of the 18650 lithium battery are aligned, or directly short-circuited and burned. If it is not determined to be negative by investigation, you can use a multimeter at one end to measure the negative, rechargeable batteries 1 to 3. After a few minutes, don't be too long, because there is no repair, maintenance, and no overload. When the voltage of the 18650 battery rises for a few minutes, the keep circuit will be open. Then you can charge. The 18650 lithium battery is a battery made of lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. In 1912, Gilbert n Lewis first proposed and studied lithium metal batteries. In the 1970s, M.S. Whittingham proposed and began to study lithium batteries. Because metal lithium has very active chemical properties, there are high environmental requirements for the production, storage and application of metal lithium. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, 18650 lithium batteries have become the mainstream. Widely used in: instrumentation, medical equipment, consumer electronics, smart water meters, testing instruments, POS machines, notebook computers and other products. The above is about how to make up for the over-discharge of lithium batteries in 18650. Friends who read this article do not understand. If your lithium battery is also over-discharged next time, you may try my method. It is very useful. Some pictures and contents of articles published on this site are from the Internet. If there is any infringement, please contact to delete the previous article: How to maintain the phone to extend the battery life?