Samsung Galaxy S3 Fix For Boot Up, Battery, Power Problems [Part 4]
How to Improve Battery Performance at SAMSUNG GALAXY S3 MINI I8190 (Battery Saving) & Make Battery Not Fast to Drain - Hard Reset & Factory Default Community
Amazon.com: Samsung Galaxy S3 S III Mini Original OEM Battery - Non-Retail Packaging - Black (Discontinued by Manufacturer) : Cell Phones & Accessories