Enjoying this extended battery (2100mAH). This is the second day using it, with moderate usage and decent reception (1 bar), but the majority of the day connected to Wifi:
https://lh6.googleusercontent.com/-...7tArY/s533/Screenshot_2012-09-16-21-53-56.png
https://lh4.googleusercontent.com/-...MyqN4/s533/Screenshot_2012-09-16-21-54-03.png
I've had this phone since December last year and the stock battery is still good, but the capacity has definitely gone down so purchasing another battery was worth it.
did you buy it online? link please