Aukey Slimline 10000mAh 18W USB-C PD Portable Charger $19 at Amazon

Amazon with AUKEY Direct has the Aukey PB-Y13 Slimline 10,000mAh 18W USB-C Power Delivery (PD) 2.0 Portable Charger Power Bank with Quick Charge 3.0 for $30 – $11 off with code 53KXUCV7 at checkout = $19 with free shipping on $25+ or with Prime.