Anker® Astro 5600mAh USB External Battery Pack Power Bank charger with LED Flashlight for iPhone, Andorid Phones, Smartphone, mobile phone, MP3, GPS, GoPro [Samsung Grade A cells, 5V / 1A] (Electronics)
Does this sound familiar: You're traveling all day, the smart phone is again empty faster than one would like, and spare battery is not as firmly installed, or is too expensive (and inconvenient, because you shut down Yes, open, change , boot again a