EcoFlow River 3 Max Portable Power StationEcoFlow River 3 Max Portable Power Station The RIVER 3 Max is a combination of the EcoFlow RIVER 3 Plus power station and an additional battery, providing a total capacity of up to 572 Wh. With an output power of up to 600 watts (or up to 1,200 watts in X Boost mode), you can easily provide power to a wide variety of devices, and the use of next generation GaN (gallium nitride) semiconductor ensures excellent power efficiency and lower heat loss. In