QUOTE(wong_86 @ Nov 3 2022, 04:10 PM)
I taught is daily auto backup to icloud, need 6 hour to upload

I only enabled backup for photos and videos when I wanted to send it for battery replacement. Usually only backup everything except for photos and videos. The photos and videos took 6 hours for me (first time backup).
QUOTE(angkhian @ Nov 3 2022, 04:13 PM)
My phone battery life is standing at 88%. Any significant changes for you after the battery switch?
Not sure if 88% but mine was 83% if i remember correctly. I start my day unplugged from the charger around 6am, my battery life would drop to 80% around 10:30am and left roughly 40% around 5pm.
Now, my battery life drops to 80% around 12pm and left roughly 60% around 5pm.
Your mileage may vary of course… but mine confirm will survive until iPhone 15 at the very least