OUTAGE STACK

Stack / DELTAPro-US

EcoFlow DELTA Pro

Updated · 16 Sep 2026 · Sheet checked · 16 Sep 2026

Buy — 3,600 W continuous / 3,600 Wh LFP

POWER STATION

Wheeled LiFePO₄ station in the 3.6 kW continuous class with about 3,600 Wh in the base pack. X-Boost up to 4,500 W is not continuous. Surge 7,200 W. About 99 lb. 120 V on a single unit. Not DELTA Pro 3, not Ultra, not DELTA 2.

3,600 WAC continuous
3,600 WhCapacity (LFP)
~99 lbWheeled
120 VSingle unit · not 240

Will run

  • Fridge/freezer + lights + network + many furnace blowers when measured under 3,600 W
  • Quiet indoor-adjacent duty when ventilated per the manual
  • Wh expand via Smart Extra Batteries (duration, not higher continuous AC)

Skip, or measure first

  • Treating X-Boost 4,500 W as free continuous headroom
  • Confusing this with DELTA Pro 3 / Ultra / DELTA 2
  • Native 240 V well / dryer / whole-home ATS without hub + second unit or panel path

What it is

US chassis DELTAPro-US (EcoFlow DELTA Pro; retailers often show EFDELTAPRO / DELTAPro-US): portable power station with ~3,600 Wh LFP pack and 3,600 W continuous AC inverter on 120 V. Manufacturer also lists X-Boost up to 4,500 W and surge 7,200 W — those are not the overnight continuous budget. Desk review of manufacturer claims — not a cycle-life bench. Outage Stack planning assumption (not manufacturer): usable Wh = rated Wh × 0.85. At a 500 W load: 3,600 × 0.85 ÷ 500 ≈ 6.1 h.

Verdict

Buy for a coherent indoor-friendly 3.6 kW / ~3.6 kWh wheeled LFP station when you accept recharge logistics. Skip if you needed Pro 3 / Ultra, believed X-Boost was continuous, or thought 3,600 Wh meant 3,600 W for many hours without doing Wh ÷ W.

Source: EcoFlow DELTA Pro product page

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