The Anker Advantage: Join the 50 million+ powered by our leading technology. Remarkably Compact: One of the smallest and lightest 10,000mAh portable chargers. Provides almost three-and-a-half iPhone 8 charges or two-and-a-half Galaxy S8 charges. High-Speed Charging: Anker’s exclusive PowerIQ and VoltageBoost combine to deliver the fastest possible charge for any device. Qualcomm Quick Charge not supported.