Galaxy S4 battery saving tips: 6 ways to increase your battery life | NextPit
Five savvy ways to maximize your Galaxy S4's battery life - CNET
Samsung - Make the most of your #Samsung #GALAXYS4 and its battery with the Power saving mode. Find more useful tips in the 'Learn More' option. http://spr.ly/6035ZmLz | Facebook
How to Improve Samsung Galaxy S4 Battery Life
Samsung Galaxy S4 tips and tricks | Trusted Reviews