Thanks for reaching out to the Samsung community! It is the normal behaviour of the device that the device battery will drain with the Internet and AOD ON. The battery usage depends upon the application running in the device.
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#/
