We do apologize for the inconvenience caused. We would recommend you to follow some troubleshooting steps in order to further isolate what you may be experiencing in your device. Find the troubleshooting steps on the provided link http://www.samsung.com/in/support/skp/faq/1101689. Please let us know what steps you have taken and if you have noticed any changes or improvements as this will help the Community to provide you further troubleshooting steps without repeating any procedure which you may have already followed. Be sure to hit ♡ when you find an answer that works for you.
For further assistance, you can get in touch with us via Live Chat option by following- http://livechat.support.samsung.com/Customer_new/IN. You can also connect us via Samsung Members web community by following mentioned url-https://community.samsungmembers.com/en_IN#/
I have the same issue now. I got my battery and board replaced under warranty at samsung here in Lebanon back in 2018. The problem was solved but in 2019 the problem returned. My note 8's battery drains very fast as soon as it reaches 15%. I tried everything from battery calibration to a million other steps and nothing works. I really like samsung and i only want to buy samsung smartphones in the future but please somebody help me before i get really mad at samsung for not giving me fixes or honest explanations!
