battery charger for galaxy s3 (same size as another phone?)

[Funkpod]

Hey, I have a Seidio Multi-Function battery charger for my Incredible. Great, because it looks like you can remove the baseplates and put another one on for another size battery. However, Seidio says they don't have any in the works... weird.

Does the galaxy s3 use the same size battery as another phone? Maybe Seidio has that baseplate already? Can I trust the $10 battery chargers on ebay?

I don't really care about the battery, i have 1 extra OEM w/ nfc battery. I just need a decent charger...
thanks!