Amazon.com: Mophie powerstation Plus XL USB-C - Universal External Battery with built in Cables (12,000mAh) - Matte Black (4114_PSPLUS-USBC-12K-MBK) : Cell Phones & Accessories
Best Buy: mophie Powerstation Plus 6,000 mAh Portable Charger for Most USB-Enabled Devices Matte Black 50827BBR
Mophie Powerstation Plus USB-C/Universal Portable Charger (6000mAh) -