This solar power bank includes a 20000mAh premium lithium-polymer battery and a small solar panel. It features dual 5V/2.1A USB output that provides fast charging for 2 devices at the same time. The price drops from $49.99 to $18.99 to $18.04 when you clip the 5% off coupon on the product page. Shipping is free for prime members or on orders over $25.

Clip the 5% off coupon.