Odd. I wonder if you have some apps updating in the background a lot.
Both my personal and my work iPhones are two-years-old, and both will last several days even with audio streaming.
I put my work phone in its drawer last Thursday, and when I took it out on Tuesday, it still had 11% left.
The drop down menu doesn't actually disable bluetooth so that alone won't work.
It'd usually last around 2 weeks with data off. I imagine an iPhone would fare even better.
