Reddit mentions of 6000mAh Portable Charger with Qualcomm Quick Charge for Smartphones

I'm a fan of Aukey, so I'd recommend THIS ONE for 10000mAh.

Or THIS ONE that's quite a bit more compact but only 6000mAh, so not quite 2 charges.

I don't know how portable/small you need the battery pack to be, but here are a few with Quick Charge 2.0:

http://www.amazon.com/Powerful-10000mAh-Anker-PowerCore-Technology/dp/B013HSQXZC/ref=sr_1_40?s=wireless&ie=UTF8&qid=1458492315&sr=1-40

http://www.amazon.com/10000mAh-Portable-Charger-Qualcomm-Charge/dp/B011U0AY22/ref=sr_1_4?s=wireless&ie=UTF8&qid=1458492461&sr=1-4&keywords=quick+charge

http://www.amazon.com/10400mAh-Portable-External-Qualcomm-Technology/dp/B00UBDI7EC/ref=sr_1_5?s=wireless&ie=UTF8&qid=1458492461&sr=1-5&keywords=quick+charge

http://www.amazon.com/6000mAh-Portable-External-Qualcomm-Technology/dp/B0193B5VVY/ref=sr_1_12?s=wireless&ie=UTF8&qid=1458492461&sr=1-12&keywords=quick+charge

I was curious of this as well, I found a 6000mAh slim one by Aukey on Amazon. 6.1 x 3.1 x 0.5 inches

http://amzn.com/B0193B5VVY

Anker also has a compact 10,000mAh one as well. 3.8 x 2.4 x 0.9 inches

http://amzn.com/B013HSQXZC

For comparison, the one you listed is 5.4 x 4.1 x 1.6 inches

I bought one very recently. After charging it to max over night and leaving it in my coat pocket for a few days, I finally tried it. During that attempt, it wouldn't charge the S7's battery (which was around 35%).

I recharged the Anker battery bank and tried it again at home and both the unit and the USB that came with it, worked fine.

I plan on continue testing it, carrying a spare battery bank and a few USB cables just in case it doesn't work in the field again.

FWIW, I've had excellent results with other Qualcomm Quick Charge 2.0 battery banks such as:

1. AUKEY 10400mAh Power Bank Portable Charger http://www.amazon.com/10400mAh-Portable-Charger-Qualcomm-Samsung/dp/B00UBDI7EC
   
2. AUKEY 6000mAh Portable http://www.amazon.com/6000mAh-Portable-External-Qualcomm-Technology/dp/B0193B5VVY
   
   
   

Only one port, but good otherwise. Good luck finding a 6000mah powerbank that has QC 2.0 and two USB ports. https://www.amazon.com/dp/B0193B5VVY/ref=cm_sw_r_cp_apa_wL0sxbAH8CF9R