HP 18,000mAh Power Pack Plus 18000 $49.95 @ B&H Photo w/ Free Shipping

https://www.bhphotovideo.com/c/pr…wer_p.html
Specs:
Charges up to Three USB Mobile Devices
18,000mAh Capacity
Supports Notebook Charging
1A and 2.1A Power Output
2 x USB Type-A Ports
1 x USB Type-C Port
Compatible with Most Mobile Devices