Amazon is offering BSYYO Portable Charge Dual 3A High-Speed Power Bank for $8.59. This is 15 percent off the original price.
Fast Charge Power Bank 10000mAh, Portable Charger for Cell Phones, Auto Detect the Charging Requirement from Your Devices.
It is also 100 percent back-ward compatible, intelligently detects and charges your devices at their maximum speed. 2 USB ports 3A Fast Charging which helps simultaneously charge USB powered devices.
The UL 2056 certified protective system offers protection against surges and protects your devices. It offers a high-density, safe Li-polymer cell.