What are the charging misunderstandings of mobile phone batteries?

Misunderstanding of mobile phone battery charging Misunderstanding of mobile phone charging 1: A new battery needs to be fully charged and discharged several times to activate Lu Jianguo, director of the Comprehensive Inspection Department of the National Household Appliances Quality Supervision and Inspection Center of the National Household Appliances Research Institute of my country, told reporters that different battery products require different methods to charge. Use according to product instructions. Early nickel-cadmium batteries and nickel-hydrogen batteries should be similarly activated. These batteries will have a memory effect. Charging in an incompletely discharged state can easily cause the battery to be overcharged. After a long time, users will feel that the battery will run out quickly. However, most of the batteries used in mobile phones and laptops are lithium batteries. Its initialization process has been completed at the time of manufacture, so do not activate it when you start using it. Mobile phone charging misunderstanding 2: Reducing the number of charges can extend the battery life. Generally, the life of a lithium battery can reach hundreds of charge and discharge cycles. The charge and discharge cycle here refers to the process of using up the battery and then recharging it, rather than plugging in the charger and then Even if it is unplugged once. Lithium batteries have no memory effect and can be charged at any time. In order to reduce the number of recharges, deliberately using up the battery before fully recharging it will not extend the battery life, but will have a negative impact on the battery life. In addition, if the mobile phone uses automatic shutdown, the internal voltage of the lithium battery will be too low due to excessive discharge, and it may not be able to turn on and charge. Therefore, charging lithium batteries pays attention to eating less and more meals, and frequent shallow charging and discharging are more helpful to extend its life. Mobile phone charging misunderstanding 3: Overcharging will cause the battery to explode. Lithium batteries generally have safety protection circuits and a variety of safety devices to ensure that the circuit of the battery is automatically cut off when overcharging and discharging and short-circuiting; the internal pressure of the battery will also trigger the exhaust device Reduce pressure; if the battery temperature is too high, it will trigger the hot melt protection device to stop the electrochemical reaction of the battery. Therefore, unless there is a quality problem, the battery will not explode after being plugged in for a long time. However, if the battery is not unplugged after being fully charged, the battery will remain fully charged. Although it will not explode, it will speed up the loss of battery capacity. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What are the reasons for the swelling of colloidal batteries?