External Battery Deals on Amazon

Laptop Power Bank, 20000mAh Portable Charger with 190W Total Output is on sale from Lenovo Product Marketplace, Inc. on Amazon for $50 with a $9 discount at checkout.

Portable Charger 100W, 10000mAh Power Bank with Built-in USB-C Cable is on sale from the same seller for $18 but you must apply discount code V7BDRYT3 at checkout.

Sorry for no link, I don't want my post to get flagged. Good luck!