Bestbuy offers INIU - Pocket Power 10K Power Bank with Built-In USB C Cable, Compact 10000mAh PD 20W (IN&OUT) for iPhone, Samsung etc. - Black for $19.99 (orig. $29.99) free shipping.

Product Description:
This 10000mAh power bank features PD20W fast charging and a built-in USB-C cable that doubles as a lanyard, eliminating extra cables. Its compact design is 25% smaller and 15% lighter than the same capacity. Rapidly charge your iPhone 15 to 65% in just 25 minutes. The 10000mAh capacity supports a full day's power and can charge 3 devices simultaneously in emergencies.