Battery health
Battery health of my mobile is 80% since it lasts for 1-2 hour after full charge, it is happening from last 2 days, before it was very good
iPhone 7 Plus
Question marked as
That's indicating that your battery is reaching the critical point of its life, and could have unporedictable behaviors.
Create a full backup of your iphone, then make an appointment at an Apple Store or Authorized Service Providere and have your device/battery serviced:--> Apple – Location Selector
Regards
Giulio