EcoFlow

EcoFlow DELTA 2 Max

Name: EcoFlow DELTA 2 Max
Brand: EcoFlow

EcoFlow DELTA 2 Max stores 2,048 Wh and can hold a continuous 2,400 W load, with a published motor surge of 4,800 W, plus X-Boost to 3,400 W for simple heaters.

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Specifications

Capacity	2,048 Wh
Usable in Willrun math	1,741 Wh (× 0.85)
Continuous AC output	2,400 W
Motor surge used	4,800 W
Resistive boost	X-Boost 3,400 W
Chemistry	LiFePO4
Cycle life	3,000 cycles to 80%+
Weight	50 lb
Dimensions	19.6 × 9.5 × 12
Outlets	6 AC outlets, 2,400 W shared. 2 USB-C at 100 W, USB-A, a car outlet at 126 W, and 2 DC5521 ports.
Launch price	Not verified. Current shelf prices were not copied in.
Source	https://us.ecoflow.com/products/delta-2-max-portable-power-station US spec table: 2,048 Wh, 6 outlets, 2,400 W total (surge 4,800 W), X-Boost 3,400 W, 50 lb, LFP, 3,000 cycles to 80%+. Surge and X-Boost are separate numbers, so the 4,800 W surge is used for motor checks.

Answer pages

Runs: LG LCE3010 induction cooktop, 1,900 W zone

Every appliance in the set

Appliance	Verdict	Runtime
Danby DCR032C1WDB 3.2 cu ft compact refrigerator	Runs, surge risk	2.9 days
Danby DAR032B1SLM 3.2 cu ft compact refrigerator	Runs, surge risk	2.5 days
Danby DAR026A1BDD 2.6 cu ft compact refrigerator	Runs, surge risk	2.5 days
Danby DAR010A1BDB 1.0 cu ft compact refrigerator	Runs, surge risk	2.6 days
Samsung RT18DG6300 17.5 cu ft top-freezer refrigerator	No run verdict	45.8 hr
Whirlpool WZC3209LW 9 cu ft chest freezer	No run verdict	3.2 days
Danby DCF100A5WDB 10 cu ft chest freezer	No run verdict	3.0 days
Frigidaire FFFH20F3W 20 cu ft upright freezer	No run verdict	31.9 hr
BLACK+DECKER BDM05C 5,000 Btu/h window air conditioner	Runs, surge risk	5.0 hr
BLACK+DECKER BD08NWES 8,000 Btu/h window air conditioner	Runs, surge risk	3.3 hr
BLACK+DECKER BD12NWES 12,000 Btu/h window air conditioner	Runs, surge risk	2.2 hr
GE PWJV10 10,000 Btu/h window air conditioner	Runs, surge risk	2.8 hr
Zoeller Model 53 3/10 HP sump pump, 115 V	Runs, surge risk	1.6 hr
ResMed AirSense 11, typical power from the user guide	Runs	31.0 hr
ResMed AirSense 11 AutoSet, no humidifier	Runs	10.4 days
ResMed AirSense 11 with HumidAir 11 and ClimateLineAir 11	Runs	31.7 hr
ResMed AirMini travel CPAP	Runs	11.5 days
LG 55QNED85 55-inch TV	Runs	22.6 hr
Sansui LE-32T1 32-inch TV	Runs	2.6 days
Sansui LE-55V4 55-inch TV	Runs	24.0 hr
Samsung QN65QN90D 65-inch TV	Runs	14.3 hr
LG 27BA450 27-inch monitor	Runs	6.1 days
Amana AMND501BW dehumidifier, about 50 pints/day	Runs, surge risk	3.6 hr
Frigidaire FHDD2233Y1 dehumidifier, about 22 pints/day	Runs, surge risk	6.7 hr
Hunter 52774 44-inch ceiling fan, high speed	Runs	5.8 days
Hunter 52881 44-inch ceiling fan, high speed	Runs	4.1 days
Broan 688ESL bathroom fan	Runs	4.3 days
Broan 744 bathroom fan	Runs	4.1 days
Simply Conserve L9W-A19 LED bulb	Runs	8.1 days
Luminus PLYS120TW LED bulb	Runs	8.1 days
13-inch MacBook Air, included adapter maximum	Runs	29.0 hr
Lenovo IdeaPad Vibe 15AKP12, ENERGY STAR short idle	Runs	11.9 days
Lenovo IdeaPad Vibe 14AKP12, ENERGY STAR short idle	Runs	19.1 days
Apple Mac Studio (M5 Ultra), ENERGY STAR short idle	Runs	10.4 days
Lasko 755320 ceramic heater, high	Runs	1.2 hr
Lasko 755320 ceramic heater, low	Runs	1.9 hr
Panasonic NN-SU656WAWH microwave, electrical input	Runs	1.2 hr
TP-Link Archer AX73 router, networked standby	Runs	8.3 days
LG LCE3010 induction cooktop, 1,200 W zone	Runs	1.5 hr
LG LCE3010 induction cooktop, 1,900 W zone	Runs	55 min

Questions

How long will the EcoFlow DELTA 2 Max run a CPAP?

Runs. At the AirSense 11 user-guide typical of 56.1 W, usable energy is 1,741 Wh and runtime is about 31.0 hr.

What does the 0.85 factor do?

Willrun multiplies nameplate watt-hours by 0.85 before dividing by average draw. That allowance is for inverter loss. It is not a measured efficiency for this model.

Is the surge rating safe to use for a fridge or a pump?

This model publishes a surge of 4,800 W separately from any heater-only boost, so Willrun uses it when the appliance also publishes startup watts. If the appliance does not, the verdict stays a surge risk.

Where do the station numbers come from?

US spec table: 2,048 Wh, 6 outlets, 2,400 W total (surge 4,800 W), X-Boost 3,400 W, 50 lb, LFP, 3,000 cycles to 80%+. Surge and X-Boost are separate numbers, so the 4,800 W surge is used for motor checks.