EC TECHNOLOGY? New design Backup External Battery Pack and Charger (Power Bank) with flashlight
Got one of these as a stocking stuffer for XMas and it has turned out to be one of the more useful things in recent memory. Now if you're expecting a full charge on an extended battery like I have in my S4, you're out of luck. But as a boost to get you back to your main charger it works great. Can bring my Galaxy Tab 3 8.0 to over 50% and charge a third of my S4's battery (with a 5400 mAh battery). Also having a pocket flashlight around is quite handy