I'm having a hard time keeping my iPad Pro sufficiently charged. I use it all day at work, and at home in the evening. I plug it in at my desk at the office, and when I'm sitting on the couch at home - like now, but it charges so slowly that it frequently slips below 20% when I'm in meetings, and even below 10%. I never had this problem with the smaller iPads. I assume the Pro's battery capacity in comparable to the Air 2 - in proportion to what the device draws. The problem is that there are still the same number of hours in a day, and the same amount of time between meetings during the day. I'm surprised that Apple didn't notice in testing that it takes a long time to charge the Pro. What the Pro really needs is a faster way to charge - more capacity per hour. I assume there's no possible fix for this with the Pro. I hope they'll consider it for the Pro 2. For now, I'll probably just carry my Mophie XL and a cable to meetings.