people using the lumia 730 i want to know the feedback of battery. im using dual sim and both on 2g and wifi about an hour a day and no wallpapers.. signal seems pretty decent.. almost full ..battery is pretty good in standby..about 1 percent an hour..but the moment screen is on it drains at approximately 12% an hour..i have few background apps ..location switched off.. so can anyone elnlighten me about the battery single vs dual sim in this model?