UGREEN USB C Power Bank 20000m - Ah can fulfil 5-7 days battery life, fully charge i - Phone 15 Pro up to 4.5 times and Mac - Book Air 15'' up to 1.1 times, ideal for travelling, business trips, camping or other outdoor activities. The digital LED screen shows the remaining battery level, status at a glance, no more guessing based on a few small LEDs. Thanks to advanced technology, the battery is smaller than conventional batteries without sacrificing charging efficiency, portable and space-saving. 20% lighter than comparable power banks, reducing the load on your journey. This portable fast charger can meet various charging needs in daily life, including most laptops, tablets and phones such as Mac - Book Pro 16", Mac - Book Air 15", i - Pad Pro/Air, i - Phone 15/Pro/Pro Max, Galaxy S23 Ultra and Pixel 7 Pro, and also supports smaller devices such as Air - Pods, fitness trackers, smartwatches, etc.