Replace the Battery on Samsung Galaxy S3 - VisiHow
How to make your battery last longer on Samsung Galaxy S3 Mini - YouTube
How to Improve Battery Performance at SAMSUNG GALAXY S3 MINI I8190 (Battery Saving) & Make Battery Not Fast to Drain - Hard Reset & Factory Default Community
How to Reduce Battery Drain on Your Samsung Galaxy S3 by Fixing Android System Usage « Samsung Galaxy S3 :: Gadget Hacks