Tips for fast charging of mobile phone lithium battery

Recently, the rapid charging techniques for mobile phone lithium batteries are in full swing. Several popular techniques must be learned to catch up. When the battery power is less than 10%, the battery icon in the upper right corner turns red, and most people feel uneasy. . The practicability of fast charging also makes more and more people willing to choose mobile phones with fast charging capabilities. ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? At present, the mainstream technologies for fast charging of mobile apps include qualcommQuickCharge2.0 (the latest is QuickCharge3.0), MediaTek PumpExpress, OPPOVOOCflash, etc. Among them, Qualcomm and MediaTek both use high-voltage charging, while VOOCflash uses high-current charging. The latest Meizu PRO6 also has a fast charging function. The poster says: When they talk about fast charging, why don’t they talk about battery life? Does fast charging affect battery life? A quick look at lithium batteries. First of all, we should be aware of lithium The charging and discharging principle of the battery, the battery has north and south poles: the positive electrode is a lithium compound, and the negative electrode is graphite. Charging and discharging are the mutual conversion of electrical energy and chemical energy. During the positive and negative movement of lithium ions, they will also become different compounds. We can think of lithium ions as a charged car: in the use of electric charge, due to the use of electric fields, all the driving force of the car stores energy to the negative electrode (lithium ions are embedded in the micropores of the negative graphite carbon layer); During the discharging process, these charged lithium-ion trolleys go to the positive electrode due to a chemical reaction (the lithium ions are stripped, making the positive electrode rich in lithium). In this process, an electric current is formed to supply power. This is what we often feel. It is clear when fully charged, why the battery can't be used in a standing position. Lithium battery charging is divided into three parts: ccpre-charge, CCFastcharge and CV. After the phone consumes power, the voltage drops. When it is lower than a certain value, the charger will pre-charge the lithium battery with a relatively low current. After a period of time, when the voltage of the lithium battery is higher than a predetermined value, it will enter the second stage of high-current constant-current charging. At this time, appropriately increasing the current can speed up the charging speed. Assuming that you are using the right or wrong fast charging mobile phone, the fast charging head will not output a large voltage to burn your mobile phone. Just like you charge your iPhone with an iPad charger, the iPhone will automatically recognize and input 1A current instead of the original 2A current. Many protection measures, fast charging voltage and current are in a safe condition, as long as the original mobile phone charging adapter is used, it will not bring safety hazards. Finally, will fast charging affect battery life? The answer is yes. Although some batteries equipped with fast-charging mobile phones have improved battery data and design, and can realize the rapid embedding and embedding of lithium ions in the battery, large voltage and current will still cause battery loss. But if you are used to buying a new mobile phone after a year or two, or are willing to replace a new battery, this effect will be small. At present, most companies supply fast charging plans that do not take into account the battery life that affects the battery life, but according to the national standard, after the battery is charged and discharged 500 times, the battery capacity is more than 80% qualified, and the use within one year has little effect. Suppose you don’t want to replace your phone’s battery in two to four years. Here are some suggestions that may help: reduce the number of fast charging and use it only in emergency use; fast charging when the power is only 30% instead of 3%; when using fast charging, it is best not to run large memory games. With the faster and faster upgrade of smart phones, if safety is guaranteed, will you give up the convenience of shorter battery life and faster charging? Disclaimer: Some pictures and content of articles published on this site are from the Internet, if any Infringement, please contact to delete the previous article: The performance difference between nickel-metal hydride batteries, nickel-cadmium batteries and lithium batteries