Question: IPhone 6 randomly dies and inaccurate battery
I was wondering if someone could help me with recent issues I'm having with my IPhone 6. Three days ago I updated my phone to IOS 11 and ever since I am having really bad battery issues. My phone will charge ridiculously quickly and also drop charge quickly. It will also die at high percentages (~60%) and then when I plug it in it will say my phone is at 5%. Then when it is still plugged in, it will sometimes jump back up to ~60% or it will charge way too fast (to 100% in 30 mins).
Before the update, I had no issues with my phone and the battery was amazing. My phone has no other performance issues and is decently new.
I believe that this is a software issue and I have tried restarting my phone, factory resetting it and logging out of my Apple ID. But, none of these have worked.
Please let me know if you have any tips.
iPhone 6, iOS 11.1