Go with the power bank Porodo 50000mAh Integrated Cables - Black, which has great capacity and charging versatility for all your devices. Most power banks will be of such a capacity, boasting an enormous 50,000mAh battery (185Wh, 3.7V), making it quite a reliable mover around. The power bank has ports for many outputs, including USB-C output: 5V/3A, 9V/2.22A, 12V/1.67A, and 20W; USB-A output: 5V/3A, 9V/2A, 12V/1.5A, and 22.5W for fast charging; while built-in cables include USB-C and Lightning outputs rated at 5V/3A and 5V/2.4A, respectively. In this way, people can charge multiple devices simultaneously, and the digital display will tell exactly how much charge is left in it. Cycle life is greater than or equal to 300 times, and it operates at a temperature range of -10 to 60 degrees C, making it very useful for everyday purposes. 35 minutes for 0%-60% charging.