Hi, i have been facing a problem with my samsung S7 Edge battery for a while, it drains so fast whithout being using it and it is starting to bother me as the phone is just 1 year old. For example, the battery is left at 80 % on night and when i wake up i find the batery at 40%. All unnecessary options are disabled (wifi, 4g, bluetooth, low brightness......) and still the battery drains so fast. What does it mean ? is the battery dying ? and how can i fix this ?