With such massive capacity, in one of these compact package, the Anker? Astro E5 is perfect for flights, road trips, or just any time you’re away from an outlet. Enough power to go around. Marooned? In transit? Omit your OEM adapter? With the Anker? Astro E5, prolong your battery life more than one times, wherever you are. Holding enough power to charge a smartphone 4-7 times (depending on your phone’s battery size), keep your gadgets going for days and still have juice left to share. World’s most compact 15000mAh Battery. Innovations in battery cell technology allow us to pack more power into less space – making this the most compact ever 15000mAh external battery. Along with portability, the Anker? Astro E5 sports two concurrent, high-speed ports. So whether you’re charging an Apple or Android device, you will not wish to wait around. Designed around the main points. Just because the E5 packs a punch, doesn’t mean it can’t look nice. We went with a smooth, ivory finish to keep you traveling in style. Simple, unobtrusive features, such as one-touch status LEDs and a built-in flashlight, come up with the whole lot you want out of a battery without sacrificing aesthetics.