EcoFlow DELTA 3 Plus: what it runs and for how long

The EcoFlow DELTA 3 Plus is a 1024 Wh LFP portable power station with 1800 W of AC output across 6 outlets and up to 1000 W of solar input. It can be expanded with EcoFlow extra batteries.

Battery
1,024 Wh
Rated AC output
1,800 W
Surge
3,600 W
Usable at the outlet
about 870 Wh

Check price at EcoFlow Search Amazon

What it runs

Runtime = 1,024 Wh x 0.85 (assumed efficiency) / the appliance's watts. Ranges run from the highest sourced running watts to the lowest. Fridges and freezers cycle on and off, so they use the average draw from ENERGY STAR data.

ApplianceRunning WStarting WRuns it?Runtime
Blender 300 to 1,380 W[2][3] 650 W[2] Yes 38 min to 2.9 h
Box fan 85 to 200 W[2][4] None listed Yes 4.3 h to 10 h
Ceiling fan 31 to 175 W[5][6] None listed Yes 4.9 h to 28 h
Chest freezer 700 W[7] 2,900 W[7] Yes about 34 h on average draw
Coffee maker 900 to 1,500 W[2][6][7] None listed Yes 35 min to 58 min
Electric kettle 1,500 W[9][10] None listed Yes 35 min
Gas furnace blower 600 to 875 W[2][6][7] 1,000 to 3,175 W[2][7] Yes 60 min to 1.4 h
Laptop 35 to 70 W[6][11] None listed Yes 12 h to 24 h
LED light bulb 8.8 W[12] None listed Yes 98 h
LED TV 63 to 150 W[2][6][13] None listed Yes 5.8 h to 13 h
Microwave oven 750 to 1,480 W[2][6][7][14] None listed Yes 35 min to 1.1 h
Phone charger 5 to 20 W[15][16] None listed Yes 43 h to 174 h
Portable electric grill 1,560 to 1,650 W[2][17] None listed Yes 32 min to 33 min
Refrigerator 700 to 725 W[2][6][7] 2,200 to 2,900 W[2][7] Yes about 16 h on average draw
Slow cooker 200 to 250 W[2][7] None listed Yes 3.4 h to 4.3 h
Space heater 750 to 1,500 W[6][19][20] None listed Yes 35 min to 1.1 h
Sump pump (1/3 HP to 1/2 HP) 800 to 1,200 W[2][7][21][22][23] 1,300 to 3,200 W[2][7] Yes 44 min to 1.0 h
Well pump 250 to 1,100 W[2][6][7] 2,100 to 3,100 W[2][7] Yes 47 min to 3.4 h
Wi-Fi router 18 to 30 W[2][24] None listed Yes 29 h to 48 h
Window air conditioner 720 to 3,250 W[2][7][25][26] 2,800 to 7,200 W[2][7] Check: depends on model 16 min to 1.2 h

Appliance checks for this station

Specs

SpecValueSource
Battery capacity 1,024 Wh [1]
Rated AC output 1,800 W [1]
Surge (peak) output 3,600 W
Listed as 6 outlets, 1800W total (Surge 3600W).		 [1]
Inverter efficiency 0.85 (assumed)
EcoFlow does not publish an inverter efficiency; 0.85 is the site default.
AC outlets 6 [1]
USB-C ports 2 [1]
USB-A ports 2 [1]
Car outlet 1 [1]
DC5521 ports 2 [1]
Max solar input 1,000 W
Two solar inputs of 500 W max each.		 [1]
Max AC charging 1,500 W [1]
Expandable battery Yes [1]
Max capacity with add-on batteries Not published
The page says 1 to 5 kWh expandable but gives no exact Wh figure.
Battery chemistry LFP [1]
Weight 27.6 lb [1]
Boost mode X-Boost runs devices up to 2200 W [1]
Price$719, checked Oct 22, 2026
Sale price on us.ecoflow.com (list 799). Prices change often.		[1]

Solar recharge

At its full rated solar input of 1,000 W, the 1,024 Wh battery would take at least 1.0 h to fill from empty (1,024 Wh / 1,000 W). Real panels make less than their rating most of the day, so plan on longer.

The DELTA 3 Plus is EcoFlow's 1024 Wh station in the DELTA 3 line. Its inverter is rated for 1800 W of continuous AC output with a published surge of 3600 W, so it covers most single kitchen appliances and the starting kick of a fridge or a small pump. EcoFlow does not publish an inverter efficiency, so the runtimes on this page use our 0.85 default, which leaves about 870 Wh at the outlets from a full charge.

X-Boost is EcoFlow's mode for heating devices over the rated output. EcoFlow lists it at 2200 W. It works by lowering the voltage, so a heater or kettle runs but puts out less heat. It does not help a motor start, and our runtimes ignore it.

For solar, EcoFlow lists two 500 W inputs for 1000 W in total. The battery can be expanded with EcoFlow extra batteries, but EcoFlow's page gives a range rather than an exact Wh figure, so we leave the expanded size out. Use the calculator below with your own appliance's label watts for the closest estimate.

Runtime calculator

Runtime (hours) = battery Wh x inverter efficiency / load W

Efficiency is the share of battery energy that reaches the outlet. Where the maker does not publish it we use 0.85. Average W is for loads that cycle on and off, like a fridge; leave it blank to use running watts. Starting surge assumes one motor starts at a time. How the estimates work.

Sources

  1. EcoFlow DELTA 3 Plus product page and specs (us.ecoflow.com), read Oct 22, 2026
  2. Champion Power Equipment Wattage Reference Chart (help.championpowerequipment.com), read Oct 22, 2026
  3. Vitamix 5200 Standard Getting Started, specifications (vitamix.com), read Oct 22, 2026
  4. Lasko B20401 20 inch box fan, specifications (Ameco), read Oct 22, 2026
  5. ENERGY STAR Certified Ceiling Fans dataset (data.energystar.gov, 2te3-nmxp), fan_power_consumption_high_speed_w, read Oct 22, 2026
  6. Virginia Cooperative Extension BSE-301NP, Estimating Appliance and Home Electronic Energy Use (typical nameplate wattages), read Oct 22, 2026
  7. Generac GP Series portable generator brochure, wattage reference chart (PDF), read Oct 22, 2026
  8. ENERGY STAR Certified Residential Freezers dataset (data.energystar.gov, 8t9c-g3tn), chest freezers, read Oct 22, 2026
  9. Hamilton Beach Stainless Steel Electric Kettle, specifications (Do it Best), read Oct 22, 2026
  10. Cuisinart PerfecTemp 1.7L Stainless Steel Electric Kettle CPK-17P1 (cuisinart.com), read Oct 22, 2026
  11. Apple MacBook Air technical specifications, In the Box and power adapter options (apple.com), read Oct 22, 2026
  12. Philips 8.8-Watt A19 LED Bulb, 60-Watt Incandescent Equivalent, 800 lumens (Super Bright LEDs), read Oct 22, 2026
  13. ENERGY STAR Certified Televisions dataset (data.energystar.gov, pd96-rr3d), power_consumption_in_on_mode_watts, read Oct 22, 2026
  14. Panasonic Features and Specifications, Microwave Oven NN-SN686SAZH (help.na.panasonic.com), read Oct 22, 2026
  15. Apple 20W USB-C Power Adapter (apple.com), read Oct 22, 2026
  16. About Apple USB power adapters (support.apple.com), read Oct 22, 2026
  17. Weber Q 1400 Electric Grill 52020001, specifications (Park Ave Appliance), read Oct 22, 2026
  18. ENERGY STAR Certified Residential Refrigerators dataset (data.energystar.gov, p5st-her9), full-size models, read Oct 22, 2026
  19. Vornado FAQs, How much energy does a Vornado heater consume?, read Oct 22, 2026
  20. Lasko 1500W 120V Cyclonic Ceramic Space Heater CC24910, specifications (Do it Best), read Oct 22, 2026
  21. Zoeller Technical Data Sheet FM2778, Mighty-Mate Series Models 53, 57, 55, 59, read Oct 22, 2026
  22. Zoeller Technical Data Sheet FM2779, Flow-Mate Series Model 98, read Oct 22, 2026
  23. WAYNE sump pump owner's manual specifications, horsepower and amp ratings (CDU790, CDU800 and others), read Oct 22, 2026
  24. NETGEAR Knowledge Base, How much power does my NETGEAR router use?, read Oct 22, 2026
  25. Frigidaire FHWC083TC1 8000 BTU window air conditioner, electrical specifications (Town Appliance), read Oct 22, 2026
  26. GE ASV10AB 115 Volt Room Air Conditioner Window Unit, GE spec sheet (PDF), read Oct 22, 2026