Android Central

Mophie, one of the most respected external battery pack suppliers for the iPhone, has finally released their version for the Samsung Galaxy S3. Costing $100, the 2300mAh battery pack and protective case combination promises to double the battery life of your Galaxy S3. It's a good chunk of cash to drop on such an accessory, but having seen one of the prototypes in the flesh at IFA, the quality is undeniable. If you're interested, head on over to the source link below. 

Source: Mophie