July 09, 2012, 2:57 PM — Here's how you can turn on the power saving option to save battery power on your Samsung Galaxy S3.
1. Go to Settings.
2. Toggle the Power Saving option switch to the On setting.
The Power Saving option will limit the CPU speed, change background colors and lower the screen brightness to help save battery power. It's a great way to keep your battery running for as long as possible on your Samsung Galaxy S3 phone.
For more, see the original article at the link below.