iPhone 6 battery suddenly draining fast!
Last night I watched my battery go from 75% to 10% to dead in a matter of minutes. Charged it overnight and watched it do the same thing again today. I've gone through the normal steps of closing all apps, turning off notifications, turning off location services, switching to low power mode, doing a hard reset, cleaning the charging port, and updating to latest ios version. Nothing helps! This phone is 2 years old and has worked like a charm until last night. I use this phone daily for work and don't understand why this would suddenly happen. Please help!
iPhone 6, iOS 10.2.1