http://www.apple.com/uk/iphone/battery.html
An interesting read. Some things of note;
Remember, those super duper battery times are always based on brightness at its lowest and always connecting to a full signal in a test lab. They are not real world times.
An interesting read. Some things of note;
Internet Use over 3G Tests
Testing conducted by Apple in August 2012 using pre-production iPhone 5 units and software, on both GSM and CDMA carrier networks. Internet over 3G tests were conducted over a 3G network using a dedicated web server. iPhone 5 browsed snapshot versions of 20 popular web pages and received mail once an hour. All settings were default except: the Wi-Fi feature Ask to Join Networks and Auto-Brightness were turned off.
Remember, those super duper battery times are always based on brightness at its lowest and always connecting to a full signal in a test lab. They are not real world times.