Looking to protect your Galaxy S4 from daily wear and damage while simultaneously extending its battery life by up to 140%? Nonsense, you say? Wrong! With the Zilu Galaxy S4 Milano Rechargeable Backup Battery Leather Case (try saying that 10 times fast!), you can make sure that your S4 battery lasts above and beyond what you expect from it while also keeping it safe from the dangers of your everyday life. Moreover, with a slick leather finish and NFC compatibility, this is the type of case you'll never want to take off!