Core Bluetooth Framework: Incorrect value of battery characteristic

I have created an application in IPhone that can act as a Peripheral. I have added several Services and Characteristics.For Battery characteristic, I have used the standard UUID "2A19". All other characteristic values are coming correctly in Central device except battery. It is showing 0 while i have given the value 60.Their is a possibility that it is colliding with IPhone battery characteristic. So is their any way to correct it ?