The Anker Laptop Power Bank with 25,000 mAh and 165 W can fully charge your MacBook 26 inch from 2019 in about 1.5 to 2.5 hours, depending on the battery capacity and charge level. The power bank delivers up to 100 W per USB-C port, which is sufficient for the MacBook to charge quickly. Apple states that MacBooks can be charged up to 50% in around 30 minutes with suitable chargers; the Power Bank supports similar charging capacities, meaning that a full charge takes correspondingly longer.