Is your firmware currently on the latest version WW-16.0615.1905.100?
(settings> system > about phone > software information > build number)
If yes. Do you mean your phone battery consume soon when standby or during use?
If this problem appears on idle, please charges the battery more over than 30 minutes even the battery percentage gets full, then remove the cable before going sleep. Please show me 2 screenshots as below on next morning before you use the phone.
1. Battery: settings> Battery (Battery usage since full charge)
2. Battery usage: settings> Battery> please click the big battery icon
Thank you. 🙂