iPhone 5 charging issues with IOS 8
I've noticed some weird charging issues since updating to IOS 8 two days ago:
Yesterday while my iPhone was plugged in the battery level started going down despite the device not being in use. A hard reset fixed the issue
I always leave my phone to charge over night. Last night before I went to bed, it was at 65%. I woke up several hours later and it had only made it to 67%. I unplugged the cable and plugged it back in, and saw it increase to 70% over the next few minutes. Went back to sleep for a few more hours, and it was only at 79% when I woke up.
Currently my phone is plugged in and seems to be stuck at 86% while charging
FYI, each of these instances occured with different first party chargers. Any help?
iPhone 5, iOS 8