ROMOSS Direct via Amazon has for Prime Members: 40000mAh ROMOSS Portable Charger Power Bank w/ 18W PD Output for $43.99 – 50% 'clipped' coupon = $21.99. Shipping is free.

Features:

• Can charge 3 devices simultaneously at a max speed up to 3 amps
• 2-inputs: Micro USB + USB Type C
• Takes 16 hours to be fully charged using a 18W PD wall charger (not included)
• Support 18W Power Delivery Fast Charging (9V 2A)