The Power Pack Plus 18000 from HP is a portable 18,000mAh battery that you can use to charge your devices while you’re on the go. It has a total of three USB ports: two USB Type-A and one USB Type-C, as well as one for charging your HP notebook. An included 7.4mm to 4.5mm tip adapter ensures that it’s compatible with most HP notebooks. The USB ports offer a variety of power outputs ranging from 1A to 3A so you’ll be able to charge smartphones and even larger devices that require more power, such as tablets. In addition to a notebook, the Power Pack Plus is capable of charging up to four devices at once using the included power adapter.