After the upgrade to iOS 9.x, I am hesitant to recommend OnyxVolt 3Pack 3.2ft USB-Lightning Cables. Your device may charge or it may not. It depends how it feels that day. On many occasions I have gotten a non-supported device error from these cables, I have also had the devices charge.
Let start from the start.
Anker 6 port 60w USB Charging Station:

http://smile.amazon.com/gp/product/B00P933OJC
Anker Astro E5 16000mAh External Battery:


http://smile.amazon.com/gp/product/B00N2T7U90
OnyxVolt 3Pack 3.2ft USB-Lightning Cables
(They are not the cheapest, but they are Apple MFi Certified)
http://smile.amazon.com/gp/product/B00QVAZTDQ
USB Micro to Lightning:

http://smile.amazon.com/gp/product/B00BREKQS4
Lightning Cozy:

http://smile.amazon.com/gp/product/B00J43YUUK
After the upgrade to iOS 9.x, I am hesitant to recommend OnyxVolt 3Pack 3.2ft USB-Lightning Cables. Your device may charge or it may not. It depends how it feels that day. On many occasions I have gotten a non-supported device error from these cables, I have also had the devices charge.