Best BLUETTI Elite 300 Alternatives
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Top picks at a glance
Best for 3,600 W outputEcoFlow DELTA 3 Ultra PlusCheck price on Amazon
Best for heavy 240V loadsAnker SOLIX F3800 PlusCheck price on Amazon
Best for 12 kWh growthEcoFlow DELTA Pro 3Check price on Amazon
The best alternatives to the BLUETTI Elite 300 are the EcoFlow DELTA 3 Ultra Plus, the Anker SOLIX F3800 Plus, and the EcoFlow DELTA Pro 3.
This guide is guided by the makers’ published specs, current in November 2026. PowerPicked Editorial did not run tests on any station listed here.
Wh is short for watt-hour. It measures stored energy. A watt counts power. It is written W. AC output is the power for plug-in large gear. Solar input is the limit on power from panels.
The Elite 300 holds 3,014 Wh, gives 2,400 W of AC output, and has a TT-30 RV outlet. The three alternatives below give more output, more capacity, or room to grow.
How do the three alternatives compare?
| DELTA 3 Ultra Plus | F3800 Plus | DELTA Pro 3 | |
|---|---|---|---|
| Capacity | 3,072 Wh | 3,840 Wh | 4 kWh |
| AC output | 3,600 W | 6,000 W | 4,000 W |
| Weight | 74.3 lb | 136.7 lb | Not listed |
The F3800 Plus gives the highest AC output of the three. The DELTA Pro 3 holds the largest capacity of the three. The DELTA 3 Ultra Plus gives the lowest AC output of the three.
Does the EcoFlow DELTA 3 Ultra Plus give more output?
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 is a home backup unit with about 3 kWh, 3,600 W of output, and room to grow to 11 kWh. It gives 3,600 W of output, and its surge rating is 7,200 W.
The runtime numbers in this part are based on 85% of the listed capacity. 2,611.2 Wh is the usable energy, from 3,072 Wh times 0.85. From that energy, a 100 W load runs for about 26.1 hours. Each pound holds about 41.3 Wh, with 3,072 Wh over 74.3 lb.
Its solar input is 1,600 W. At 600 W, its noise is listed at 25 dB or less. Its USB-C ports are 140 W and two 45 W. It reaches 0 to 80% in about 48 minutes with solar and generator dual charging. Its UPS switchover is under 10 ms. It is heavy at about 74.3 lb. To get the full 5-year warranty, app registration is needed.
Find the DELTA 3 Ultra Plus review at /guides/ecoflow-delta-3-ultra-plus-review/.
Does the Anker SOLIX F3800 Plus give the most output?
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 heavy or 240V loads, the F3800 Plus is a large unit that stays in one place. It gives 120V and 240V output, with a TT-30 RV port.
For the runtime numbers in this part, 85% of the listed capacity is the basis. From 3,840 Wh times 0.85, usable energy comes to 3,264.0 Wh. That energy gives a 100 W load about 32.6 hours. Dividing 3,840 Wh by 136.7 lb gives about 28.1 Wh per pound.
Up to six extra 3.84 kWh battery packs can join it. For AC charging, input is 1,800 W. It weighs 136.7 lb, very heavy, though wheels help move it.
The F3800 Plus review sits at /guides/anker-solix-f3800-plus-review/.
Does the EcoFlow DELTA Pro 3 hold the most energy?
EcoFlow DELTA Pro 3
- Capacity
- 4 kWh
- AC output
- 4,000 W
- Voltage
- 120V and 240V
- Expansion
- Up to 12 kWh per unit
Who it's for: Homeowners who want 120V and 240V backup and may add batteries over time.
Strengths
- Expands to 12 kWh on one unit, more as a multi-unit system
- 120V and 240V output
- Rated to keep 80% capacity after 4,000 cycles
Weaknesses
- Lower continuous output than the F3800 Plus
- More capacity than small essential loads need
The DELTA Pro 3 gives homeowners 120V and 240V backup, and batteries can join later. It holds 4 kWh, and it can reach 12 kWh as a single unit, and more with extra units.
We assume 85% of the listed capacity for the runtime math in this part. Times 0.85, the listed 4 kWh gives about 3,400 Wh of usable energy. From that energy, a 100 W load runs for about 34.0 hours.
Its 4,000 W of AC output is lower than the F3800 Plus. It keeps 80% of its capacity after 4,000 cycles, by the listing. Small essential loads need less capacity than it holds.
See the DELTA Pro 3 review at /guides/ecoflow-delta-pro-3-review/.
How to choose
Start with output. A 240V load needs 240V output listed. An RV-style plug fits a TT-30 outlet. Capacity sets how long the station runs before it needs a charge. Weight decides whether it stays in one place or moves. More batteries can join an expandable station later.
FAQ
Which of these alternatives stores the most energy?
The DELTA Pro 3 holds the most energy, at 4 kWh. The F3800 Plus holds 3,840 Wh. The DELTA 3 Ultra Plus holds 3,072 Wh.
Which of these alternatives offers the highest AC output?
The F3800 Plus gives the highest AC output, at 6,000 W. The DELTA Pro 3 gives 4,000 W. The DELTA 3 Ultra Plus gives 3,600 W.
Which alternative here takes extra batteries?
Up to six extra 3.84 kWh battery packs can join the F3800 Plus. The DELTA Pro 3 can reach 12 kWh as a single unit. The DELTA 3 Ultra Plus can grow to 11 kWh.
Which alternative here is the lightest?
The DELTA 3 Ultra Plus is lightest, at 74.3 lb. The F3800 Plus is 136.7 lb. No weight is listed for the DELTA Pro 3.
