VettaFi Black Portable Charger 

The Anker® PowerCore 5000 contains enough power to provide over an entire replacement charge for iPhone X and Samsung Galaxy S9, or almost 2 charges for iPhone 8. Measuring 4.25"L x 1.25"H x 1.25"W, the remarkably small, tubular design slides easily next to your phone in any pocket or bag. It's equipped with exclusive PowerIQ technology, which provides the fastest possible charge to any phone or tablet (up to 2A). Does not support Qualcomm Quick Charge.