EcoFlow DELTA 3 Ultra Plus vs. Anker SOLIX F3800 Plus
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Top picks at a glance
Best for a quiet backupEcoFlow DELTA 3 Ultra PlusCheck price on Amazon
Best for the most powerAnker SOLIX F3800 PlusCheck price on Amazon
On output and capacity, the Anker SOLIX F3800 Plus wins this comparison, with 6,000 W and 3,840 Wh against the EcoFlow DELTA 3 Ultra Plus’s 3,600 W and 3,072 Wh. The DELTA 3 Ultra Plus wins on weight at 74.3 lb against 136.7 lb, and on noise, listing 25 dB or less at 600 W. A buyer who runs heavy or 240V loads should pick the F3800 Plus. A buyer who wants a quieter box should pick the DELTA 3 Ultra Plus.
This comparison is built on the makers’ published specs, current in November 2026. PowerPicked Editorial did not test either station in person.
Watt-hours, written Wh, count stored energy. Watts, written W, count power. AC output is the power for plug-in heavy gear. Solar input caps how much power panels can feed a station.
Which station fits a big home backup best?
| Spec | EcoFlow DELTA 3 Ultra Plus | Anker SOLIX F3800 Plus |
|---|---|---|
| Capacity | 3,072 Wh | 3,840 Wh |
| AC output | 3,600 W | 6,000 W |
| Solar input | 1,600 W | 3,200 W |
| Weight | 74.3 lb | 136.7 lb |
The F3800 Plus leads on capacity, output, and solar input. The DELTA 3 Ultra Plus leads on weight and on noise, since it is far lighter and lists 25 dB or less at 600 W. Both can grow with extra batteries, but the F3800 Plus grows further, with up to six 3.84 kWh expansion batteries against the DELTA 3 Ultra Plus’s 11 kWh total. A buyer who wants the most power should pick the F3800 Plus, while a buyer who wants a lighter and quieter box should pick the DELTA 3 Ultra Plus.
EcoFlow DELTA 3 Ultra Plus
EcoFlow DELTA 3 Ultra Plus
- Capacity
- 3,072 Wh
- AC output
- 3,600 W
- Solar input
- 1,600 W
- Weight
- 74.3 lb
Who it's for: Home backup buyers who want about 3 kWh and 3,600 W in one unit that can grow to 11 kWh.
Strengths
- 3,600 W output with a 7,200 W surge rating
- 1,600 W solar input
- Listed at 25 dB or less at 600 W
Weaknesses
- Heavy at about 74.3 lb
- Full 5-year warranty needs app registration
The DELTA 3 Ultra Plus suits a home backup buyer who wants about 3 kWh with 3,600 W in one unit that can grow to 11 kWh. Output is 3,600 W with a 7,200 W surge rating. Solar input goes up to 1,600 W. Its noise is listed as 25 dB or less at 600 W. Its UPS switchover is under 10 ms. Solar and generator dual charging takes it from 0 to 80% in about 48 minutes.
Use 85% of the listed capacity for the runtime math in this section. Usable energy works out to 2,611.2 Wh, from 3,072 Wh times 0.85. That energy runs a 100 W load for about 26.1 hours. Per pound, it holds about 41.3 Wh. That is 3,072 Wh over 74.3 lb.
The limits are weight and warranty. It is heavy at about 74.3 lb. The full 5-year warranty needs app registration. You can read the DELTA 3 Ultra Plus review at /guides/ecoflow-delta-3-ultra-plus-review/.
Anker SOLIX F3800 Plus
Anker SOLIX F3800 Plus
- Capacity
- 3,840 Wh
- AC output
- 6,000 W
- Solar input
- 3,200 W
- Weight
- 136.7 lb
Who it's for: RV owners and homeowners with heavy or 240V loads who can keep a large unit in one place.
The photo also shows the Home Power Panel, which Amazon sells with this model in some listings. Check what's included before you buy.
Strengths
- 120V and 240V output
- TT-30 RV port
- Supports up to six 3.84 kWh expansion batteries
Weaknesses
- Very heavy at 136.7 lb, though it has wheels
- AC charging input is 1,800 W
For an RV owner or homeowner with heavy or 240V loads, the F3800 Plus is a large unit that stays in one place. Output is 6,000 W with 120V and 240V, and a TT-30 RV port is on board. Wheels help move its 136.7 lb box, and it can take up to six 3.84 kWh expansion batteries. AC charging input is 1,800 W, and solar input goes up to 3,200 W.
Assume 85% of the listed capacity for the runtime math in this part. Usable energy comes to 3,264.0 Wh, from 3,840 Wh times 0.85. On that energy, a 100 W load runs about 32.6 hours. Per pound, it holds about 28.1 Wh. That is 3,840 Wh over 136.7 lb.
Weight and charging speed are the weak points. It is very heavy at 136.7 lb, yet it has wheels, and its AC charging input is 1,800 W. You can read the F3800 Plus review at /guides/anker-solix-f3800-plus-review/.
How to choose
Start with output. The F3800 Plus offers 6,000 W with 120V and 240V. The DELTA 3 Ultra Plus offers 3,600 W. For heavy or 240V loads, the F3800 Plus is the pick. Next, check capacity. At 3,840 Wh, the F3800 Plus holds more than the DELTA 3 Ultra Plus’s 3,072 Wh. That means about 32.6 hours for a 100 W load, against about 26.1 hours. Then check solar input. From panels, the F3800 Plus takes 3,200 W, while the DELTA 3 Ultra Plus takes 1,600 W. Finally, check weight and noise. The DELTA 3 Ultra Plus at 74.3 lb is far easier to move than the F3800 Plus at 136.7 lb, and it lists 25 dB or less at 600 W.
FAQ
Which station offers more AC output?
The Anker SOLIX F3800 Plus offers more, at 6,000 W. The EcoFlow DELTA 3 Ultra Plus offers 3,600 W.
Which station accepts more solar input?
The Anker SOLIX F3800 Plus accepts more, at 3,200 W. The EcoFlow DELTA 3 Ultra Plus accepts up to 1,600 W.
Does the DELTA 3 Ultra Plus take extra batteries?
Yes. Extra batteries can take it from 3 kWh to 11 kWh. The F3800 Plus grows further, with up to six 3.84 kWh expansion batteries.
Which of the two is easier to move?
The EcoFlow DELTA 3 Ultra Plus is easier to move, at 74.3 lb. The Anker SOLIX F3800 Plus weighs 136.7 lb, and it has wheels.
