iPad was at 10% so put it down on the table & got the charger for it plugged it all in & turned the socket on & I got a blank screen. I pressed the home button & nothing happened so I thought maybe the iPad turned itself off at 10% so I held in the power/sleep/wake button & again nothing happened then I pressed the home button again & the screen lit up with 10% charge still. My iPad charged fine & is working ok now. Any idea why my iPad screen didn't light up straight away when I plugged it in to charge? Hope it's not gonna become a problem. Any ideas on this?