I bought a new Lumia 520 last week, and i'm loving this device. But the battery is draining very rapidly. Here are my usage stats- i fully charge the phone at around 11Pm, then read news for about 20 mins, and then go sleep. I wake up at 9, do normal surfing for about half an hour. Then i use the phone for playing temple run, for a total of about 40 mins overall. My mobile data is always on. Rest all services are turned off. No background apps.... Battery reaches the 5% limit at about 7 pm in the evening. I also watch a HD tv show for about 30 mins. Battery saver is turned on. Rest is the normal occasional usage. Is this normal, or do i need to visit. Nokia care?