I've had my original iPad mini (not the new retina one) for a few days. I'm a little confused by the battery. My wife's iPad 2 will drain maybe a couple percentage points on standby for 24 hours. My iPad mini will drain anywhere from 10%-20% in 24 hours. I shut off bluetooth and mobile data and that seemed to help, but I'm still surprised by it's inability to hold a charge when it shouldn't be doing anything. Am I missing a setting that stops activity when it goes to sleep or something?