G_Mohamed_Kader_LZtn, Aug 13, 2017 : Hi all, this phone is less than a week old. The battery on this phone when i bought was really good. With normal usage it generally lasted at least close to 20-24 hours. Unfortunately for the last few days the battery drain became more visible. I did the following test : About 3.31am the phone was switched on to flight mode and all radios were off, and all recent apps were cleared. At that point battery was 45%. At 8.15am, I do a random check on the phone and the battery has plunged to 28%. Note that it's not even 5hours and battery loses 17% energy. This is pretty significant loss of battery for just being on standby. Even my S8 used to lose only about 1-3% overnight. The current os is oxygen os 4.5.8 /nougat 7.1. 1. Any user having this similar issue? Any solution to this battery drain trouble??