30000mahOur high-quality industrial power bank is a dependable source of energy. Perfect for laptops, phones, and tablets. it is professional and does not require any prior experience to use. It also does not require any upkeep. It is extremely stable. It has multiple output ports for various devices.30000mahoutput: usb - 5v/2a dc - 15v/2ainput: dc19v/1.2a