Generally speaking, the battery life of mobile phones is more than 500 cycles. A cycle number refers to the state of mobile phone battery from Wally to low charge and then to Wally. Health percentage refers to the battery capacity of the mobile phone and the battery capacity when it first leaves the factory. It is generally recommended to replace the battery in time when the health is lower than 80%.
And the daily usage time depends on your actual usage. If you don't use too much every day, just make a phone call, chat with chat software, browse the web for a day, or charge it once a day if it is convenient, even if the battery health is below 80%, you can still use it for several months.