Samsung’s Galaxy S4 is one of the world’s most popular smartphones, but not because of its battery life. With its default 2,600 mAh battery, the Galaxy S4 lasted just 6 hours and 41 minutes on T-Mobile and even less on Sprint (6:05), AT&T (5:54) and Verizon (5:25). Fortunately, you can swap Samsung’s battery for Mugen Power’s 5,500 mAh HLI-9500XL extra capacity battery.
Yes, inserting this $89 battery adds 2 ounces and more than doubles the Galaxy S4’s thickness, going to from 0.25 to 0.65 inches. But it also nearly doubles the battery life, bringing the AT&T Galaxy S4’s endurance up to 11 hours and 7 minutes. We’ll take a thicker phone over a dead phone any day.
More: Galaxy S4 Tips