With my Note 4, I'd take it off the charger at 9, get up at 5 and only drained 5 percent. With my Edge, I'm draining 15 percent. I use blocking mode at night and use power saver. I'm trying to figure out what's causing the larger drain in standby mode and Cocktail Bar Service seems to be the culprit. I don't want to put the phone in Airplane mode, because I do need to be able to receive calls from the list I allowed on blocking mode.