Dn3 5v2 I have one question, why the level of battery power is dropping so fast when I don't do anything with the phone in one hour your battery falls by 1% but if I play a game or anything else and it is very quick to use the batteries in one hour, say 50% or is there any option to keep the battery a long time I tried also calibration battery but nothing beter eny idea?!?!?