TL;DR - Battery life drops about 1% an hour, even with every single setting off or at low. For the past few weeks, Ive noticed some very bad (I think?) battery life on my iPhone. Basically, even with every setting off, the battery decreases by about 1% an hour even with very little actual usage. For starters, this is a new iPhone 4 (it was a replacement I got from Apple in early November) so the battery itself is pretty new. Ive also installed the latest iOS patch. Ive reset my phone and all that good stuff. Ive also rundown my battery to zero twice before recharging. Even with Wi-Fi OFF, brightness less than 50%, location services off, e-mail completely off, all notifications on all apps off, 3G/data OFF, autolock at 1 minute, very little phone usage, no internet usage, no use of iCloud (havent even signed up for that), Bluetooth off basically everything useful about my phone (apart from the actual phone function) is OFF. So basically Id like to know is this normal?? My understanding is that standby time on the iPhone 4 is ~300 hours, so I would think that the battery would last more than 100 hours even with nothing on except cellular service. Id love to go into an Apple store, but there isnt anyone close by (<1 hour away), and theres no 1-800 support left either.