{Q}Battery replacement

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http://forum.xda-developers.com – Hello, I'm thinking about changing my battery because it is almost 2 years old and the life isn't so good anymore. Orginal battery has 1500mah and I've found a battery that has 2430mah and normal size. Here's link to this battery in polish and in english. What do You think about this battery? Is it worth of it's price or is it another crap? Or maybe You've used it already and have Your own opinion? The only opinion I've found about this battery is here. (HowTos)