Unfortunately, cell standby has been a major problem of mine for a long time. I know that it has something to do with connecting to WiFi while idle or sending streams of data required by some apps, but I don't know how to reduce the battery strain. It's battery drain can range from taking up to 25%-50% of my battery life, whether or not I use my phone during the day, and my phone will only last about 1/2 of the day. I have been looking up ways on how to solve this on other popular threads on this site, but none have had any lasting solutions. I have done the usual battery saving tactics like turning down brightness, scanning for Wi-Fi, location, Google now, Bluetooth, sync settings, disabled bloatware that I don't need that commonly suck up battery life on other Galaxies, attempted both turning on and off advanced calling, and attempted the method where you wipe the cache partition and reboot the device, and reset the settings and restored to factory defaults, all of which only reduced the battery strain a little bit. For the love of Pete, does anyone know how to fix this?