What's the new meaning and usage of charging?

principle

This is a process of charging batteries and other equipment. Its principle is to let direct current pass in the opposite direction of discharge, so as to restore the active substances in the battery. The working process in which a battery receives electric energy from an external circuit and converts it into chemical energy of the battery. After the energy of the battery is discharged, it can be recovered by charging and discharged again, forming a charging and discharging cycle. Usually, DC current (also called asymmetric AC current or pulse current) is used for charging. Under different circumstances, different charging methods are used, such as constant current charging, constant voltage charging, floating charging, trickle charging, urgent charging or a combination of these methods.

skill

If users want to prolong the effective service life of batteries, besides ensuring the quality of chargers, correct charging skills are also essential, because inferior chargers or wrong charging methods will affect the service life and cycle life of batteries. The following are the charging skills compiled by the author: 1. Before the battery leaves the factory, the manufacturer has activated and precharged it, so the battery has remaining power. Some friends say that the battery is charged according to the adjustment cycle, and the standby time is still seriously insufficient. Assuming that the battery is indeed a genuine battery, in this case, the adjustment period should be extended to completely charge and discharge 3~5 times. 2. If the newly bought mobile phone battery is lithium ion, the first 3~5 times of charging is generally called the adjustment period, and it should be charged for more than 14 hours to ensure the full activation of lithium ion. Lithium-ion batteries have no memory effect, but they have strong inertia. It should be fully activated to ensure the best performance in future use. 3. Some automatic intelligent fast charging displays 90% full only when the signal light changes. The charger will automatically change to a slow speed to charge the battery. It is best to use the battery after it is fully charged, otherwise the service time will be shortened. 4. The lithium battery does not need special discharge before charging, and improper discharge will damage the battery. When charging, try to charge slowly and reduce the fast charging mode; The time should not exceed 24 hours. After three to five complete charge and discharge cycles, the chemicals in the battery will be fully "activated" to achieve the best use effect. 5. Please use the charger of the original factory or reputable brand, and use the special charger for lithium battery, and use it according to the instructions, otherwise the battery will be damaged or even dangerous. 6. Many users often leave their mobile phones on when charging. In fact, it is easy to hurt the life of their mobile phones, because the circuit board of the mobile phone will heat up during charging. At this time, if there is an external phone, it may produce instantaneous reflux current and damage the internal parts of the mobile phone. 7. The life of the battery depends on the number of repeated charge and discharge, so try to avoid charging the battery when the power is left, which will shorten the life of the battery. When the mobile phone is turned off for more than 7 days, the battery of the mobile phone should be completely discharged before use. 8. The mobile phone battery will automatically discharge. When not in use, the daily discharge of the Ni-MH battery is about 1% of the remaining capacity, and the daily discharge of the lithium battery is 0.2% ~ 0.3%. When charging the battery, try to use a special socket, and don't use the socket for household appliances such as chargers and televisions.

Edit paragraph 2. capacitor charge

capacitor charge

When one plate of the capacitor is connected to the positive electrode of the battery pack and the other plate is connected to the negative electrode, the two plates are respectively charged with the same amount of heterogeneous charges. This process is called charging. Such as the charging behavior of devices such as printers.

Edit paragraph 3. charge

In the electrical operation of power system, the operation of making electrical equipment such as lines, buses and transformers with rated voltage without load is called charging.

Edit this paragraph 4 to extend the meaning.

Modern times often refer to supplementing strength or knowledge for enterprises and individuals and constantly improving themselves. Huang Ying was admitted to the graduate school in order to recharge her batteries and store more new knowledge. Charger 1 safety operation procedures. The charger must be well grounded and managed and operated by a special person. Other personnel are not allowed to touch without permission. Wear protective glasses, masks and gloves when working, and wear acid-proof rubber shoes when necessary. 2. All mechanical equipment must be isolated from charging equipment. The copper head and carbon brush of the generator are not allowed to contact sulfuric acid solution or gas. It is forbidden to turn on the power supply before the battery lead post is connected, so as to prevent sparks from causing explosion. 3. When preparing electrolyte, you must first add distilled water, and then slowly pour sulfuric acid. It is forbidden to pour water into concentrated sulfuric acid. It is forbidden to pour concentrated sulfuric acid directly into the battery. 4, midway power failure or failure, must immediately cut off the DC power supply, and then turn off the charging equipment. Prevent explosion caused by reverse current. 5. The battery terminals should be closely connected with lead-plated clips to prevent hydrogen explosion in the battery caused by sparks. 6. The charging room should be well ventilated. When charging, open doors and windows or ventilation equipment. 7. In the process of charging, always check the situation on the plug or the ventilation hole in the ventilation pipe of the battery box cover. If these holes are blocked, the pore pressure will rise sharply and the shell will explode. At the same time, the voltage, temperature and specific gravity of electrolyte should be checked frequently. In particular, the temperature shall not exceed 45℃ to prevent explosion or combustion. 8, electricity or check the battery, it is forbidden to put metal tools on the battery, in case of battery short circuit caused by explosion share cuts. 9. Cars shall be used for handling battery bottles, and rubber gloves and aprons shall be provided. Handle with care. 10, the charging room shall not be separated from people, and it shall be locked for management, and idle personnel are not allowed to enter. 1 1. Open flames and sparks are prohibited in the charging room, and the slogan "No fireworks" should be posted. Carbon tetrachloride or carbon dioxide fire extinguishers should be available indoors, and other types of fire extinguishers are not allowed. 12. The battery case and its surroundings that come into contact with acidic solution should be scrubbed with alkaline water (5% sodium carbonate aqueous solution) frequently. 13, skin contact with acid immediately with alkaline water or water. When acid spills into eyes, it should be washed with clear water immediately. There should always be enough sodium carbonate solution in the charging room.

Edit paragraph 5. Chat quotations

1, agree with each other. Example: Xiaohong: I want to work in Chongqing during the summer vacation and earn some money! Zhang Lei: I think so. Xiaohong: Then let's go to Shapingba to see if there are any summer jobs! Zhang Lei: Well, keep charging! (equivalent to "top") 2. A third party intervened in the chat. Ceng Fang: I heard that a hot pot restaurant has just opened in the south of the city! Xiao Yang: Well, I heard about it yesterday. Jian Yue: Ceng Fang, why don't we go for dinner? Xiao Yang: Where are you from? Charge here! ? (equivalent to the abbreviation of "light bulb"). 3. Attract others' attention. Example: (chatting in Baidu group) Zhao Min: I want to visit Huangshan this summer vacation. Li Jun, are you there? Quanxin: charge! (equivalent to "I am here!" ) Li Jun: Here I am! Zhao Min: Do you want to play? Li Jun: OK! Quanxin: Keep charging! (Equivalent to "Count me in!" )

Edit paragraph 6. study

It refers to studying after study and work to improve one's professional level, ideological understanding or enrich knowledge.

Please adopt ~