EcoFlow Delta Max 2400W Portable Power Station EFD310EcoFlow Delta Max 2400W Portable Power Station EFD310 Home power security DELTA Maxs large 2kWh capacity keeps your home appliances running during a blackout. Expand up to 6kWh with Extra Batteries for several days of reliable backup power. Fast charging speeds EcoFlows patented X Stream AC fast charging lets you recharge DELTA Max in only 1. 8 hours. Or even quicker if you combine any two charging methods, thats from an AC wall outlet, solar panels,