Ios 15.4 battery drain
Facing battery draining issue and heating issue after updating 15.4 in iPhone 13 mini
Facing battery draining issue and heating issue after updating 15.4 in iPhone 13 mini
15.4 is widely reported as giving the best battery life ever,
If yours is not, read this.
The last update killed my battery! - Apple Community
Ios 15.4 battery drain