Almost 7 hrs of SOT... Thats Frigging AWESOME! Can you tell us your usage patterns? What was enabled/disabled...? Majority time on WiFi or Mobile Network (2g/3g/HSPA/LTE). Signal Strength of the Carrier
On my N4, the highest ive gotten is 5 1/2 hrs of SOT and that is with most of the stuff disabled and on wifi!