iPhone 6, 6s sudden shutdown? We've almost fully cured issue with iOS 10.2.1, says Apple

Apple has almost fixed a power-management issue that

Apple has already run out of replacement iPhone batteries

Apple says iOS 10.2.1 has eliminated the majority of iPhone 6s shutdown issues - 9to5Mac

What causes my iPhone to turn off when it appears to have battery left? - Quora

Why do people prefer to believe the lie that the Apple battery thing is to force people to buy new phones sooner? - Quora

Latest version of iOS solves iPhone 6's shutdown issues

Latest iOS 10 update has significantly reduced iPhone 6 and 6S random shutdown issues - The Verge

Apple News Page 2CachedWith

iPhone Unexpected Shutdowns - How To Fix!!

How To Fix iPhone 6S Auto Shutdown When Still Has Battery?

iOS 10 - Wikipedia