What about the battery bulge? What should I do?

1. Please don't continue to use the swollen battery. If there is a bulge, try to replace it with a new one in time. Try not to rely on some methods taught online to continue to use batteries. 2. Don't charge while playing with your mobile phone. Check the battery condition regularly to avoid dangerous situations. 3. Pay attention to the choice of charger when charging at ordinary times. For example, the rated charging voltage of the battery is 3.7v, and the limit voltage is 4.2V Try not to choose a charger that exceeds this voltage. It is best to keep a constant current. 4. Choose batteries produced by big factories, and the quality is relatively reliable. You should pay more attention to the damage caused by your usual usage habits to the battery. 5. If the mobile phone battery has been charged and expanded, first find the gap of the battery with your fingers (the back of the mobile phone battery is close to the charging electrode of the mobile phone, which is a little soft when pressed down). Just poke a small hole with a needle and let the air out.