Allpowers R4000 vs EcoFlow DELTA 3 Ultra Plus

What is the difference?

The Allpowers R4000 has 4 kW of power, 6 kW peak, a 3.46 kWh battery. The EcoFlow DELTA 3 Ultra Plus has 3.6 kW of power, 7.2 kW peak, a 3.07 kWh battery.

Both use LiFePO4 batteries.

The Allpowers R4000 takes up to 2000 W from solar, the EcoFlow DELTA 3 Ultra Plus takes up to 1600 W from solar. The Allpowers R4000 charges faster from panels.

The Allpowers R4000 weighs 99 lb, the EcoFlow DELTA 3 Ultra Plus weighs 74 lb. The EcoFlow DELTA 3 Ultra Plus is easier to carry.

Both have a 5-year warranty.

Both have 120 V AC output.

The EcoFlow DELTA 3 Ultra Plus can add extra batteries.

Specs side by side

	Allpowers R4000	EcoFlow DELTA 3 Ultra Plus
Capacity (Wh)	3456	3072
Continuous (W)	4000	3600
Peak (W)	6000	7200
Solar input (W)	2000	1600
Chemistry	LiFePO4	LFP
Cycles	3500	—
Expandable	—	yes
Weight (lb)	99	74
Warranty (yr)	5	5
Fridge run time	65.2 h	57.9 h
CPAP run time	78.2 h	69.5 h
Wi-Fi router run time	228.1 h	202.8 h
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Specs as read from manufacturer pages on 2026-11-02 / 2026-10-25. Specs one maker does not list are left out of the comparison. Run times are for that appliance alone with a typical duty cycle, after inverter and depth-of-discharge losses. Sponsored links; we may earn a commission.

Common questions

Which has more capacity, Allpowers R4000 or EcoFlow DELTA 3 Ultra Plus?

The Allpowers R4000. More capacity: 3456 Wh vs 3072 Wh.

Which is lighter, Allpowers R4000 or EcoFlow DELTA 3 Ultra Plus?

The EcoFlow DELTA 3 Ultra Plus. Lighter: 74 lb vs 99 lb.

Which charges faster from solar, Allpowers R4000 or EcoFlow DELTA 3 Ultra Plus?

The Allpowers R4000. Faster solar charging: 2000 W input vs 1600 W input.

More comparisons

Compare other models → · All Allpowers models · All EcoFlow models