dealsiogear portable rechargeable backup battery packā€¦


Note: This is only a 1500mAh battery.

For about $12-$14 more you can get a 5300mAh one on Amazon that works with every portable device (via a usb cable) and can completely charge your phone (from dead) anywhere from 3-4 times before needing to be recharged itself. Just search for it, the reviews speak for themselves.