20000mAh Large Capacity: This power bank with a large 20000mAh capacity, provides sufficient power for your devices, charges a Macbook about 1 time, iPhone 15 about 4 times 100W Fast Recharge: AMEGAT portable charger with MAX 100W output power can charge a MacBook Pro 16 to 50% in 30 mins and fully powers iPhones in 1 hour, experience lightning charging