Its draining bro not drinking. Secondly battery takes more time to charge nearly about 2hour 15 minutes from 19% to 100%. Try to factory data reset and uninstall those apps which app are not uses. And when you charge your battery please use battery calibration process that is you use the full battery untill the device gets switched off then you charge your battery & don't turn on the device untill it fully charged. I hope this method will works better. Share your battery SoT graph.