i just bought a new iPhone 6S Plus and the battery life on this thing is really bad. See pic. I am getting 6hr:21min of usage going from 100% to 5% battery life, mostly using Safari. This is at least 4 hours shorter than what i used to get on my iPhone 6 Plus. Before you start telling me that i got a defective device, let me tell you that i already exchanged it once and the battery is the same. Any one getting similar battery life?