mPowerpack 50 Pocket Battery Pack (5000 mAh) - Dark Grey Device capacity: 18.5 Wh Battery capacity: 5000 mAh; 3.7V Internal battery type: Lithium polymer Output: 1 USB port, 5V, up to 1400 mA Charges smartphones (iPhone, Samsung and others): 34 times Charges tablets (iPad, Samsung and others): 50100% Also charges iPods/MP3/MP4, e-readers, USB cameras, GPS, PSP/handheld game consoles, bluetooth speakers and more. Special features: Flashlight