I've got a Powerstation Plus 3x, NEW IN BOX, that I won from a company thing. However, it is a lightning connector cable for iPhone and I don't own an iPhone.
The Powerstation Plus features a 5,000 mAh battery to charge your iDevices on the fly. by comparison, the newest iPhone (6s) has an 1810 mAh battery: so, you could get two and a half charges out of the Powerstation.
They retail for $100 online (see link below). It is yours for $80.
http://www.amazon.ca/dp/B00Q4XQN0S
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