Having opposite. My S6 started randomly losing battery while still on os9. Would be at 100% at bedtime and down to 40% 8 hours later when I woke up. Tried restarting and unpairing/repairing and nothing helped. When 10.1 came out I took the plunge and updated. Last 2 nights waking at 80% like I used to (battery is at 80% capacity so I’m calling this a win). Of note I did skip 10.0.1, but I do have weather complication on my face.
Having opposite. My S6 started randomly losing battery while still on os9. Would be at 100% at bedtime and down to 40% 8 hours later when I woke up. Tried restarting and unpairing/repairing and nothing helped. When 10.1 came out I took the plunge and updated. Last 2 nights waking at 80% like I used to (battery is at 80% capacity so I’m calling this a win). Of note I did skip 10.0.1, but I do have weather complication on my face.