PowerSkin has launched a new battery case today for the Samsung Galaxy S III with 1500mAh built-in rechargeable battery and it also has built-in NFC. Here's more info on this battery case with NFC for the Samsung Galaxy S III:
PowerSkin: First-Ever NFC-Enabled Case for Samsung Galaxy S III
Designed for the Samsung Galaxy S III - the top-selling U.S. smartphone in August - this new PowerSkin features patent-pending technology enabling NFC transmission to pass through the silicone case for quick information sharing.
. NFC enabled for quick information sharing . 1500 mAh rechargeable battery extends talk time up to 2.83 hours (up to 97 hours standby) . On / off button located on the side gives users power on demand . Smart Power Management shuts off PowerSkin when phone is fully charged for zero loss of power . Included cable allows users to sync data while re-charging . LED battery lights display charging status . One-piece, soft-touch, silicone case slides on seamlessly and protects against shocks, drops and dust . For a list of all current skins visit: www.power-skin.com/battery-cases.html