title: How to find maximum capacity and current available capacity of battery in iphone?
body: <p>In my application I can find the battery level using <code>[[UIDevice currentdevice] batterylevel]</code>, it is working only in 3.0 or later versions. I don't know how to find the maximum capacity and currently available capacity of battery. Also, how can I find the battery level and battery status in iOS 2.0?</p>