When traveling, I find myself using my iPhone’s data constantly to find directions, places to drink coffee, and where to rent a bike. In turn, this kills my battery, so to avoid being an energy hobo and recharging at every exposed outlet I can find, I tend like to pack an external battery case for my iPhone. However, not all iPhone battery cases are made equal.

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One of the seemingly better iPhone battery cases on the market is the Lenmar Meridian case for iPhone 5 and 5S. This case offers a 2,300mAh rechargeable battery, enough to provide your iPhone with an additional full charge on-the-go. The Meridian’s design is also nice as it’s offered in a sleek matte black with an LED battery indicator on the back of the case. Finally, the case is MFI (Made for iPhone) certified by Apple, so you don’t have to worry about compatibility issues.

Purchase your Lenmar Meridian case here for $50.