EcoFlow · model EFDELTA2Max-US
Power Station · Battery (LiFePO4)
~$1,299approx. list price
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2,400 W running, 4,800 W surge — sustains the fridge, freezer and the essentials tier and everything below it.
Best forBuyers who want a proven 2kWh platform with cheap battery expansion and are fine with last-generation charging speed.
The 2kWh unit EcoFlow kept selling after the DELTA 3 generation arrived, mainly because it is the cheapest way into a 6kWh system. 2,048Wh of LiFePO4, 2,400W continuous, 4,800W surge and X-Boost to 3,400W for resistive loads covers a fridge, furnace blower, sump and a window AC, and six AC outlets mean no power strip. It takes two DELTA 2 Max Smart Extra Batteries for 6,144Wh, and the same batteries fit the DELTA 3 line. The 1,800W X-Stream recharge and the UPS function are the features people lean on. Newer models charge faster and EcoFlow publishes no dB figure for this one, so noise is a question mark. At 50 pounds it is heavier than the 3 Max, and there is no 30A outlet. EcoFlow lists it at $1,299 and discounts it most weeks.
From the spec sheet
2048Wh, expands to 6144Wh·2400W / 4800W surge·6 AC outlets
At a glance
At a glance
Head to head
Power Station · Battery (LiFePO4) · 25 dB
2,400 W / 4,800 W surge · up to fridge, freezer and the essentials
Best for Households that want a quiet 2kWh backup for essentials and do not need a 30A transfer-switch outlet.
Power Station · Battery (LiFePO4) · 30 dB
3,000 W / 6,000 W surge · up to fridge, freezer and the essentials
Best for Households wanting one box that handles kitchen appliances plus a couple days of fridge backup.
Power Station · Battery (LiFePO4) · 30 dB
1,800 W / 3,600 W surge · up to lights, phones, router, a CPAP
Best for Apartment dwellers and network-gear owners who want a set-and-forget UPS that doubles as camping power.