Migvela via Amazon offers the Emigvela 20,000mAh USB Type-C Portable Battery Pack for $49.99. Coupon code "CK3C65AE" cuts that to $20. With free shipping, that's $6 under our mention from a week ago, $30 off, and the lowest price we could find for a 20,000mAh power bank that can charge laptops. It has one 45-watt USB Type-C output for laptops and one USB Type-A output. Deal ends June 23.