I am having this issue on my 6S since the update to iOS 11. Have to charge the phone two times per day instead of one before updating. A friend of mine also has the same problem with his 6S.
Same, for my 6S+, watch 0, and iPad Air 2. All of them!
The watch is especially problematic as I am using it to track various activities and it is harder to charge (who has a watch charger in their car?) and can’t be used while charging.
The watch is especially problematic as I am using it to track various activities and it is harder to charge (who has a watch charger in their car?) and can’t be used while charging.