Belkin BPB003btBK 20K Power Bank with Dual USB-A , USB-C IN, Black

Our 20,000 mAh power bank provides up to an additional 28 hours* of battery life to your tablet and up to 77 hours* to your smartphone. You can stay charged for days while you travel for work or leisure, all without having to plug into a wall outlet. With two USB-A ports, you're ready to charge a wide variety of devices on the go.