If you're shopping for a portable power station, you might be super confused by the different outlet ports. While AC outlets are familiar to most, what about the rest? What do they all do? Why do they have different watts, volts and amperes? Will they work with your devices? We've put. You need a variety of different outlets on a power station because your gear all have different connectors and plugs. For example, you can. In addition to all the types of outlets available on a portable power station, you will find that each outlet delivers varying levels of electrical output, aka energy. This is because devices. Input ports are the power station's charging points, like the ports on your devices where you attach power cords. They are used to recharge a power station's battery.