It used to be that you could just go on Amazon and order a batter that was OEM and get a new battery cheaper than, say, Verizon would charge you.
Now, it's just scammers selling bad, old batteries. Every review is one star and yet these guys continue to operate.
I'm doubtful of eBay. So...where the heck can you get batteries besides a Verizon store?
Looking for a Galaxy S3 battery, but I remember this problem with my last phone too.
See this: Amazon.com: Samsung Galaxy S3 2100 mAh Battery: Cell Phones & Accessories