AUKEY Power Bank 20000mAh sells on Amazon. I think the price is very good. Please read some of the reviews and see what people thought of the product. Check how you might qualify for a free shipping offer if available.
- 20000mAh Power Bank – Fully charge your iPhone 8 6.6 times or a iPhone X 4.6 times, or a Galaxy Note 8 4.6 times or a iPad Mini 4 1.5 times
- Dual USB ports, combined 2.1A output – Simultaneously charge your smartphone and tablet at max speed
- AiPower – Tuned to adaptively provide the safest maximum recharge rate for all your USB powered devices
- Built-in safeguards protect your devices against excessive current, overheating, and overcharging
- Package Contents: AUKEY 20000mAh Power Bank, Micro USB Cable, User Manual, 24 Month Warranty