What is the matter if the mobile phone battery cannot be charged?

For the internal charging problem of the mobile phone itself, the mobile phone must be taken to a designated national warranty point for testing and repair. Before sending it, you must first make sure that the real problem is the phone. Try it with a good cell phone battery and charger of the same model. If you use someone else’s battery into your cell phone while using your own charger, it still doesn’t work, then try it with someone else’s charger. The result is still No, it means that there is a problem inside your mobile phone. You have to send it for repair by yourself! 2. If you use the replacement method mentioned above and replace it with someone else’s charger, you can charge it, that is Your own charger is broken. If there is a warranty, repair it as soon as possible. If not, send it to the after-sales service point of your brand mobile phone and ask the manufacturer to repair it for you. Because manufacturers are more aware of their products, they will be guaranteed in terms of repairs, so don't just send them to street stalls for repairs. 3. Battery problem If it can be charged normally after replacing it with another good battery, then it is your battery problem. If you are sure that there is a problem with your mobile phone battery, first take out your mobile phone battery to see if there is any swelling and swelling? Is there any rust on the metal contact position? If it is swelling, it means that the battery cell has a problem and has been damaged; Or it means that the cell phone battery's cycle life has reached; or the battery protection circuit board is malfunctioning. 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: What is the composition of lithium ion battery electrolyte