EcoFlow Solar to XT60i Charging Cable. Connect a solar panel to an EcoFlow power station for clean, efficient, and reliable power wherever you go. The EcoFlow Solar to XT60i Charging Cable (2.5m/3.5m/5m) allows you to connect an EcoFlow portable power station to a solar panel. This cable is compatible with RIVER 2, RIVER 2 Max, RIVER 2 Pro, DELTA 2, DELTA Max (2000), and DELTA Pro power stations. Cable type: Solar to XT60i Charging Cable. Package includes: 3.5m EcoFlow Solar to XT60i Charging Cable ×1.