Aukey 10000mAh Slimline Dual-USB Powerbank $11 at Amazon

Amazon with ZD Land has the Aukey 10000mAh Slimline Dual-USB Powerbank Battery Pack Portable Charger (PB-N50-US) for $14 – 22% off coupon (clip coupon) = $11 with free shipping on $25+ or with Prime.