Hi, I find this one from Amazon: http://www.amazon.com/OLALA-8000mAh-Portable-Charger-Smartphones/dp/B018FYDHM0/

It is a power bank with built in USB Cable.

If you want a power bank with built in lightning cable for your iPhone, this one is what you want: http://www.amazon.com/Certified-OLALA-Portable-Lightning-External/dp/B011BEA4V8