Analysis of battery charging knowledge

1. Generally, before leaving the factory, the manufacturer will activate the solution and perform pre-charging. Therefore, the battery has residual power. The newly purchased mobile phone battery is lithium ion, so the first 3~5 charges are called the adjustment period and should be charged for more than 14 hours. , To ensure sufficient activation of lithium ion activity. Lithium batteries have no memory effect, but are very inert. They should be fully activated to ensure the best performance in future use. Regarding the issue of the first charging, I also consulted Samsung’s technical staff. The answer to me is that Samsung’s original battery has been fully activated before leaving the factory, and there is no need to charge for a long time. To activate the activity of lithium ions, the first time you charge, you only need to use up the remaining power in the battery and overflow it. I think Samsung's technical staff should be convincing. 2. Some automated smart fast chargers actually only represent 90% overflow when the indicator lights change. The charger will automatically change to overflow the battery with slow charging. Don't cut off the power of the charger immediately. It is best to give the battery a period of time to recharge the battery, and then use the battery after overflowing, otherwise the use time will be shortened. 3. Before charging, do not discharge or discharge the lithium battery. The current processed lithium battery chargers have no discharge function. If the charging speed can be adjusted, it is recommended that you try to charge slowly while charging, and reduce the fast charging method. ; Neither slow charging nor fast charging should take more than 24 hours. Otherwise, the battery is likely to burn out the cells due to the huge electron current in the long-term power supply. 4. Many users leave their mobile phones on during charging. During the charging process, the battery discharges outward due to the use of the mobile phone, and then supplies power inward due to the use of the battery. It is likely that the voltage will be disturbed and the circuit board of the mobile phone will be damaged. Heating, if there is an incoming call, there will be an instantaneous return current, which will damage the internal parts of the phone. 5. The life of the battery depends on the number of repeated charging and discharging. Lithium batteries can continue to be charged and discharged for about 500 times, after which the performance of the battery will be greatly reduced. You should try to be careful to discharge all the remaining power in the battery before recharging, otherwise as the number of recharges increases. Increase, the battery performance will slowly weaken, and the battery's standby time will hardly not drop. 6. Do not expose the battery to high temperature or severe cold, like in the dog days, should not put the mobile phone under the sun to withstand the scorching sun; or take it in an air-conditioned room and place it in a place with direct air-conditioning. When charging, the current product flows back, and it is normal for the battery to generate a little heat. 7. If the mobile phone battery is left unused for too long, it is best to apply to the mobile phone maintenance department to activate the battery, or you can use a DC barostat by yourself, adjust the voltage to 5~6V, and connect the battery in reverse with the current 500~600mA. . Pay attention, let it go with one touch, and repeat at most three times. After this solution is solved, use the original charger to charge during the adjustment period. 8. The longer the charging time is, the better, the charging should be stopped after overflowing the battery without protection circuit, otherwise it will affect the performance due to heat or overheating. The method to calculate the theoretical charging time of the battery is as follows: the battery capacity is divided by the output current of the charger. For example: take a battery with a capacity of 800MAH as an example, the output current of the charger is 500MA, then the charging time is equal to 800MAH/500MA u003d1.6 hours. Of course, this is only a theoretical calculation of the time for overflowing power. When the charger shows that the charging is complete, it is best to give the battery about half an hour to recharge. Lithium batteries must use special chargers, otherwise they may not reach saturation and affect their performance. 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 post: Do you know the advantages of lithium iron phosphate batteries?