I am on my phone so i cant link it to you directly, go to www.ebay.co.uk search for "extended battery galaxy s2" when i searched it the price was 25£ with shipping to eu.
Here in Slovenia the price with free shipping was 30€ thats like the same plus i got the warranty.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?