EcoFlow DELTA 2 + DELTA 2 Smart Extra Battery Options:EcoFlow DELTA 2 Portable Power Station + DELTA 2 Smart Extra Battery With 768Wh capacity and 220W TRAIL Series DC Portable Power Station:TRAIL 300 DC+45W Portable Solar Panel(TYPE C) With 768Wh capacity and 220W solar input Plays nice with your solar panels: The Solar Tracker works with just about any solar panel Control from anywhere Use the EcoFlow app to control your DELTA 2 from anywhere using Wi Fi Add on the DELTA 2 extra battery to reach 2048Wh