Why is it going from 1 hour to now 11 hours to back up my data to iCloud ? The time to back up keeps getting longer
Why is my iPhone back up to iCloud gone from 1 to 11 hours and keeps increasing ?
The first-time backup takes a long time.
Keep the iPhone connected to a power source and to WiFi.
Secondly, keep the iPhone Screen Open by setting it to Auto Lock Never.
Keep it on the page where it is backing up.
If you need to use the iPhone then back it up overnight.