AC Charging
EcoFlow’s X-Stream fast charge technology is specifically designed for AC charging. The AC charging speed can be adjusted via the EcoFlow app. In case of unusual situations where the AC input current remains higher than 20A, the X-Stream charging input port will initiate a self-protection function, and the Overload Protection Switch on the product will automatically pop up. After confirming that there is no product failure, you can press the Overload Protection Switch to resume charging.
https://manuals.plus/ecoflow/delta-2-portable-power-station-manual#ixzz7qM2cwCDR