I bought a vivo mobile phone for my mother. It has been used for three years, and the battery of the mobile phone is not very good. Sometimes the mobile phone battery drops quickly, so I go to my buddy who sells mobile phones. He tells me the following ways to repair the mobile phone battery.
Wipe the battery gently first, wrap the mobile phone battery with plastic wrap and freeze it for 48 hours. After taking it out, connect a special device to consume energy, and then fully charge it, and the battery standby time can be extended.