ECOFLOW River 2 Portable Power Station The River 2 series is EcoFlow's newest offering of of smaller recreational power stations. These provide you the accessibility to handy wall outlets (AC) as well as a variety of DC power ports. The River 2 features a 256Wh Capacity which makes it best suited to charging devices and 12V applications such as fridges, lights and pumps. It has a 300W Inverter (surges to 600W) which also allows it to run selected appliances if required. At only 3.5kg, this makes it the ideal unit for camping, vanlife, boating or hiking.