battery drain ios13

Hi everyone, loving iOS13.1 on my iPhone 6S except optimized charging. I charge to 100% before I go to bed and the next day I have 40% battery left. I charged to 100% at work and playing Need for speed for 5 mins my phone lost 40%. I also use Pokemon Go and noticed my phone was always warm. I...

I am dumbfounded. A new iOS version and another round of fast battery drain. Since the iOS 13 upgrade, I have found my battery drains quickly. Today after 6 hours of normal usage, I had 25% battery remaining. I had a replacement battery installed by Apple circa 6 months ago. The last time I...