TWO 140W FAST CHARGING PORTS: Powdeom portable power bank is equipped with the latest PD 3.1 chip and bi-directional charging technology to achieve 140W fast charging. C1 and C2 ports can not only provide high-power charging for your electronic devices but also rechange quickly. 27000MAH LARGE CAPACITY: With a massive 99Wh capacity, the laptop battery bank can provide iPhone 15 Pro Max up to 4.7 times, MacBook Air M1 up to 1.4 times, iPad Pro 11'' up to 3 times, Steam Deck up to 2 times, which is ideal for business and travel.