iPhone 7 battery is draining very fast
Battery is draining very fast. When its connected to wifi or cellular. Could you please suggest
[Re-Titled by Moderator]
Go to Settings, Battery and look at the usage graph. Look for big users and in particular light blue bars of apps running behind the screen
Check Battery Health in that area and look for health below 80% in which case replace the battery
And then User Tip
Check iphone battery for self discharge
Apple has recently updated the battery KB article, and it’s really quite good. iPhone Battery and Performance - Apple Support