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If the phone battery has already been fully charged, there is also a solution. Just use your fingers to find the gap in the battery first, poke a small hole with a needle, and let the air inside run out.

2. Additionally, purchase a new lithium-ion battery pack and replace it with a new battery.

3. Placing the lithium-ion battery pack in a low-temperature environment will cause significant changes in the microstructure of the lithium film and electrolyte on the surface of the lithium-ion battery, as well as their interface, resulting in temporary inactivity inside the battery and reduced leakage current. So after recharging, the battery life of the phone will increase.

Repair tips for mobile lithium-ion battery bulges:

1. After the battery is bulging, we first seal the battery with cling film, and then put it in the refrigerator to cool down for about half an hour.

2. Remove the battery after the temperature has decreased, and then remove the packaging paper on the surface of the battery.

3. Then use a needle to puncture a small hole on the surface of the lithium-ion battery pack.

4. Press with your fingers to release the gas from the battery.

5. Seal the air holes with tape.

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