Hi everyone - I've had my iPhone 6 since it came out and all of a sudden the battery started showing 100% at all times and it claims to be charging in the evenings, but the phone will suddenly shut off and briefly say the battery needs to be plugged in. As soon as I do, the battery indicator goes to 100% once again. I took the phone to the Apple Store today and their diagnostics claim the battery has 0% wear level after 3 years -- which seems absolutely impossible. They did some firmware restore and wiped the phone claiming it was a software issue. After an iCloud restore of my data without the phone being plugged in, I'm back to 100% on the battery. As the phone is out of warranty, I'm trying to figure out whether I should try replacing the battery myself or if it's a bigger issue. I'd like to give this phone to a family member once the 8 comes out and I'd like to be able to keep using it in the meantime without it randomly shutting down. Anyone else have this issue and find a fix?