Need a new battery for Galaxy S3 that is not cheap knock off?

[AC Question]

It looks like I need to buy the battery online, but how do tell if it is going to be a good battery? I have been reading about underperforming knock-offs and bad look alike. This is for an GalaxyS3, ATT with NFC want it to fit in original case.

 

[MaxKittens]

eBay guarantees all claims made by the buyer or your money back try this listing Original Samsung Galaxy S3 i9300 L710 T999 I747 EB L1G6LLA Battery | eBay