Amazon has INIU Portable Charger, Slimmest 10000mAh 5V/3A Power Bank, USB C in&out High-Speed Charging Battery Pack, External Phone Powerbank Compatible with iPhone 16 15 14 13 12 Samsung S22 S21 Google iPad etc on sale for $17.99. Shipping is usually free to Amazon Prime members or on orders over $35.

Since prices on Amazon change frequently, please review the current price at the product page before making a purchase.