That's the same problem Business Insider's Antonio Villas-Boas found after using a Galaxy S6, essentially the same handset but without the curved edge displays, for a month. Villas-Boas learned that one single setting solved his battery life issues, however. "I switched off Google Now, Google's digital assistant, and my battery life skyrocketed to last me about 36 hours on a single charge with relatively decent usage, including music streaming, but without using Bluetooth or GPS. I charge it every night, but I usually have just under 50% battery left before I go to bed."