Battery drain fast

jamal220,

1) Have you tried a restart? If not, do it now.

2) See the section "View battery usage information" in the link below to see the apps that are consuming your battery:

Maximizing Battery Life and Lifespan

3) If you have not upgraded to iOS 12.0, do it now and then check "battery health" in the link:

iPhone Battery and Performance

4) If all else fails, consider a battery replacement:

iPhone Battery & Power Repair

Good luck.

I had my battery replaced but it doesn't help! Even when I close all apps, turn off WiFi, data & Bluetooth, Do not disturb mode to avoid notifications, battery still goes from 100% to 20% overnight.