rockpals 300w portable power station, 280wh cpap backup battery pack ups power supply 110v pure sine wave ac outlet, qc3.0 usb, 12v/24v dc, led flashlight for camping, home, emergency rockpals rockpals 300w portable power station charges your life! it is a versatile, convenient, large capacity power pack which combines 110v ac inverter, dc 12v and usb ports, designed to run lights, phones, laptops and small appliances in an off-grid or power outage situation. great for emergency, camping, weekend trip or wherever you need power anytime anywhere.