It is a 30000mAh power bank, built with three 10000mAh pouch polymer cells.

It has four output ports, each with an independent output, and four devices can charge at the same time.

Yes. It has a built-in Lightning cable (5V/2A) and a built-in Type-C cable (5V/3A, 9V/2.22A, 12V/1.67A, 10V/2.25A). It also has a USB port and a Type-C port.

Use the Type-C port. It accepts input at 5V/3A, 9V/2A or 12V/1.5A.

Store it at 0 to 35 degrees C with humidity no more than 75%, and recharge it once every 3 months while it is in storage.