The mobile phone manual says that you should charge your mobile phone healthily once a month. What does that mean? How to charge it? Or what is healthy charging.

Healthy charging should be when the mobile phone is not in use.

In other words, even if the mobile phone is not used, it should be recharged once a month. To keep the battery active, and by the way, it can dehumidify the mobile phone (the heat generated during charging can help the mobile phone eliminate moisture).

Lithium batteries, in fact, can be charged and discharged once every three months.