Extend the battery life of your smartphone with a Samsung Galaxy S3 extended life battery. You can also replace or carry extra standard cell phone batteries for the Galaxy S3. Protect your device with a case, or S3 tempered glass screen protector. We are always adding new accessories for the Samsung Galaxy S3 like tough cases and wireless charging adapters for the Galaxy S3. Add wireless charging capabilities to your phone in seconds. Find all the Samsung Galaxy S3 phone battery and S3 cell phone accessories you are going to need to keep your Samsung S3 smartphone running smoothly.