The reason I asked is because other brands on ebay claims the same but from what I've seen the other says they actually worse than Sam's original one and just fake.
it seems Anker is the only one on ebay which is works good?
I tried apex and nova .. not bad, but not allow you to create folders in the app drawer: (
Unfortunately this is a big problem .. I prefer the theme golauncher ics (golauncher is free but the theme costs about 1.50 €).
I got this battery 2 months now and is really decent (i paid 11euros all included). With medium usage and 100 apps on my phone it's enough for one day. 50 apps and low usage with wifi on all day i get 50% by the time i go to bed.