I tested 4 Novo 7 Aurora, all with the same firmware (Jan 2012) and each of them work completely different. One has a great battery that charging fast and you can use the tablet for 4-5 hours with WIFI on. The other 3 (all from RedTabletsPC.com) have worse battery but each working different: 2 of them charging very slow - 1 percent per 5+ minutes! with both the charger and USB and the last device charging much faster. Except of that everything works fine. Well... the gravity sensor sucks on all of them.