iPhone 6. Battery health shows 98%. Overnight, it drops 5%. While in use, it’s dropping 1% every 3 minutes. Continuous use only gives me 4 1/2 to 5 hours between charges. I have done all the “tricks” to preserve the battery, but no luck. Out of warranty, so a new battery or phone will come out of my pocket.
Someone else asked about this a while back, seems there was an iOS update that was causing the battery to drain faster.
Currently on iOS 12, but just got notified that 12.0.1 is available. After it’s downloaded, I’ll charge the battery and see if it was fixed.