Thumb Score: +13

Woot! has via the Woot! App (iOS, Android): Anker 537 PowerCore 24,000 mAh up to 65W Power Bank on sale for $34.99 – 22% discount at checkout in the app only = $27.29. Shipping is free for Amazon Prime Members (must log in with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.