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BLUETTI vs EcoFlow

BLUETTI sells you the larger battery. EcoFlow sells you the faster way to refill it and the option to add more. Which is right depends on one question.

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Two players facing each other across a chess board

At a glance

Quick picks

Tap any row to jump to the full write-up. Weight is a column here because it is the spec that decides whether you actually carry the thing.

#ProductBest forCapacity · WeightPrice
1EcoFlow DELTA 3 PlusThe most expandable 1kWh unit here, with 2,200W available through X-Boost and two solar inputs.The better 1kWh unit overall1,024Wh
27.6 lb
Check price
2BLUETTI AC180The biggest battery in the 1kWh class and the longest cycle rating — and the heaviest thing here you would still call portable.The biggest battery and the most outlets1,152Wh
35.27 lb
Check price
3BLUETTI Elite 30 V2600W continuous and a 1,500W surge out of 288Wh — double the output of every other unit in this capacity class.The better small unit, and it is the BLUETTI288Wh
9.5 lb
Check price
4EcoFlow RIVER 3 PlusThe successor to the RIVER 2 Pro: the only sub-11 lb unit here that still expands past 800Wh.The small unit that grows286Wh
10.4 lb
Check price

#ad Prices are not shown because this site has no live price feed yet — every button opens the current Amazon listing so you see the real price, not a stale one. Weights and capacities are manufacturer-published figures; sources are listed at the foot of this page.

The verdict: buy EcoFlow in the 1kWh class and BLUETTI in the 288Wh class. In the 1kWh class the EcoFlow DELTA 3 Plus takes 1,000W of solar against BLUETTI's 500W, expands to 5kWh where the AC180 does not expand at all, surges to 3,600W against 2,700W, and refills in 56 minutes against 1.3-1.8 hours. In the small class the BLUETTI Elite 30 V2 delivers the same 600W with 25% more surge headroom and — the deciding factor — a published 5-year warranty, where EcoFlow publishes no warranty term for the RIVER 3 Plus on its US page. The one condition that overrides the 1kWh verdict: if you only ever charge from a wall socket, BLUETTI's 1,152Wh against 1,024Wh is 11% more battery and you are paying EcoFlow for solar input you will never use.

These two brands make the cleanest philosophical contrast on the site. BLUETTI's answer to the category is a bigger battery with more sockets on it. EcoFlow's answer is a system: higher input, a surge ceiling with room to spare, and the ability to bolt on capacity later. Both are coherent; they just reward different buyers.

The decision table

Manufacturer-published figures read from the pages linked under Sources. Blank cells are figures the manufacturer does not publish. Watt-hours per pound is our arithmetic.
BLUETTI AC180EcoFlow DELTA 3 Plus
Capacity1,152Wh1,024Wh
ChemistryLiFePO4LFP (LiFePO4)
AC continuous1,800W1,800W
Surge2,700W3,600W
Weight35.27 lb27.6 lb
Wh per lb32.737.1
Max solar input500W1,000W (2 x 500W MPPT)
Cycle rating3,500+ to 80% original4,000 to 80%+
AC recharge1.3-1.8 hr at 1,440W56 min at 1,500W
UPS switchover20 msUnder 10 ms
AC outlets46
ExpandableNoYes — up to 5kWh
Warranty5 years5 years

The weight line is the one most people miss. The BLUETTI holds 11% more energy and weighs 28% more doing it, which is why its watt-hours-per-pound figure is the worst in the class and the EcoFlow's is comfortably better. If the unit moves, that gap compounds every time you lift it. The weight guide ranks the whole registry on that single spec.

Where EcoFlow wins

  • Solar input. 1,000W across two MPPT inputs against 500W. This is the biggest single gap between the brands and it decides any purchase where panels are the recharge plan. How much solar input do you need shows what that buys per day.
  • Expansion. Up to 5kWh on the DELTA 3 Plus, 6kWh on the DELTA 2 Max, 858Wh on the RIVER 3 Plus. BLUETTI's AC180 and Elite 30 V2 do not expand at all. Best expandable power stations ranks the registry on this.
  • Surge. 3,600W against 2,700W, which is the margin that starts a fridge compressor or a power-tool motor without tripping. Best power station for power tools explains why that number matters more than capacity.
  • Recharge and switchover. 56 minutes against 1.3-1.8 hours, and under 10 ms against 20 ms.
  • Weight per watt-hour. 37.1Wh per pound against 32.7.

Where BLUETTI wins

  • Battery size. 1,152Wh against 1,024Wh in the 1kWh class — the largest in the class on this site.
  • Outlet count in the small class, and the wireless pad in the big one. Four AC outlets, four USB-A and a 15W wireless charging pad on the AC180; nine output ports on the Elite 30 V2.
  • Published warranty across the range. Both BLUETTI units publish 5 years. EcoFlow publishes no warranty term for the RIVER 3 Plus on its US page, which is a documentation gap on a product you buy for the long term.
  • Small-class output headroom. 1,500W of surge from 288Wh against the RIVER 3 Plus's 1,200W.
  • A stated lifespan figure. BLUETTI publishes over 3,000 cycles and a 10-year lifespan for the Elite 30 V2, which is more than most brands say about a small unit.

The one spec that decides it for most people

Ask how you intend to refill it. If the answer is a wall socket, every EcoFlow advantage except surge becomes something you are paying for and not using, and the BLUETTI's extra 128Wh is real energy you will actually have. If the answer is panels, or 'I am not sure yet', EcoFlow wins and it is not close — a 500W input ceiling cannot be argued up, and a unit that does not expand cannot be grown.

That is the same logic that decides EcoFlow DELTA 3 vs DELTA 3 Plus, where the only meaningful difference between two otherwise identical units is 500W against 1,000W of solar input — and the honest conclusion there is that wall chargers should buy the cheaper one. EcoFlow DELTA 3 Plus vs BLUETTI AC180 is the model-level version of this page if you have already narrowed it to those two boxes.

How to decide in one sentence

  1. You will run panels — EcoFlow DELTA 3 Plus: 1,000W input, expands to 5kWh.
  2. You will only ever use a wall socket — BLUETTI AC180: 1,152Wh and four AC outlets.
  3. You need surge headroom for motors — EcoFlow DELTA 3 Plus: 3,600W.
  4. You want the best small unit — BLUETTI Elite 30 V2: 600W, 1,500W surge, 5-year warranty.
  5. You want a small unit that grows — EcoFlow RIVER 3 Plus: 858Wh wire-free.
  6. You need 240V or a whole house — neither of these; read EcoFlow DELTA Pro 3 vs Anker SOLIX F3800.

If you have not yet fixed a capacity, do that first — what size power station do I need typically moves people a whole band, and a brand argument inside the wrong band is wasted. For all four brands on this site against each other at once, Jackery vs EcoFlow vs BLUETTI vs Anker is the four-way page, and BLUETTI vs Jackery covers the other BLUETTI pairing.

What we have not done

We have not handled either brand's units, measured a delivered capacity, timed a recharge or tested a switchover. Every figure above is the manufacturer's own published specification, linked below. The watt-hours-per-pound arithmetic is ours, and so is the observation that EcoFlow does not publish a warranty term for the RIVER 3 Plus — we state that gap rather than filling it from a retailer listing. How we choose.

The picks in full

1. The better 1kWh unit overall

EcoFlow DELTA 3 Plus

A modern kitchen counter with small appliances plugged in
Capacity
1,024Wh
Chemistry
LFP (LiFePO4)
AC output
1,800W continuous / 3,600W surge
Weight
27.6 lb
Max solar input
1000W
Cycle rating
4,000 cycles to 80%+ capacity
AC recharge
Full in 56 min (1,500W AC input)
Warranty
5 years
Check price on Amazon

#ad We earn a commission at no extra cost to you. How this is funded

1,000W of solar input across two MPPT inputs, expansion to 5kWh, a 3,600W surge and a full recharge in 56 minutes. Every one of those four figures beats BLUETTI's equivalent, and together they are the reason this wins the 1kWh class.

EcoFlow publishes 1,024Wh of LFP, 1,800W continuous, six AC outlets, two 140W USB-C ports, a sub-10 ms switchover, 4,000 cycles to 80% or better and a 5-year warranty. 27.6 lb is 37.1Wh per pound, which is better than the BLUETTI's 32.7.

What you give up is battery size: 1,024Wh against the AC180's 1,152Wh, an 11% difference. If you charge only from a wall socket and never want a second battery, that 11% is a real argument for the BLUETTI — and the plain EcoFlow DELTA 3 is the cheaper version of this unit for exactly that case.

Reasons to buy

  • 1,000W solar input across two MPPT inputs
  • 3,600W surge — biggest in the class
  • Expands to 5kWh
  • Full recharge in 56 minutes; under 10 ms switchover
  • Six AC outlets; 4,000 cycles to 80%+

Reasons to avoid

  • 1,024Wh — 11% less battery than the AC180
  • 27.6 lb
  • You pay for solar input you may never use
  • Expansion batteries are a separate purchase

Buy it if: panels, expansion, and the biggest surge margin.

Skip it if: you want the most watt-hours for the money, full stop.

Read the full EcoFlow DELTA 3 Plus review →

A note on these figures: EcoFlow publishes solar input as two MPPT inputs of 500W each (1,000W combined) on the DELTA 3 Plus; the plain DELTA 3 is 500W total.

2. The biggest battery and the most outlets

BLUETTI AC180

A camping table lit by string lights after dark
Capacity
1,152Wh
Chemistry
LiFePO4
AC output
1,800W continuous / 2,700W surge
Weight
35.27 lb
Max solar input
500W
Cycle rating
3,500+ cycles to 80% original capacity
AC recharge
1.3-1.8 hr full (1,440W max AC input)
Warranty
5 years
Check price on Amazon

#ad We earn a commission at no extra cost to you. How this is funded

1,152Wh is the largest battery in the 1kWh class on this site, and four AC outlets plus four USB-A, a 100W USB-C and a 15W wireless pad is the most generous port set of the two brands. For a fixed spot with a lot of small things plugged in, that combination is hard to argue with.

BLUETTI publishes 1,800W continuous with a 2,700W surge, a 1.3-1.8 hour full recharge at 1,440W input, a 20 ms UPS switchover, 3,500+ cycles to 80% of original capacity and a 5-year warranty.

35.27 lb is 32.7Wh per pound, the worst weight efficiency in the class, and it does not expand. 500W of solar input is half the EcoFlow's. This is the unit for somewhere it can stay put and be plugged into a wall.

Reasons to buy

  • 1,152Wh — biggest battery in its class
  • Four AC outlets plus a 15W wireless pad
  • 3,500+ cycles to 80% original capacity
  • 1,800W continuous, 2,700W surge
  • 5-year warranty

Reasons to avoid

  • 35.27 lb — 32.7Wh per pound, worst in class
  • Not expandable
  • 500W solar input, half the EcoFlow
  • Slower recharge than the EcoFlow's 56 minutes

Buy it if: a fixed spot, many plugs, and a wall socket nearby.

Skip it if: solar or expansion is part of the plan.

Read the full BLUETTI AC180 review →

3. The better small unit, and it is the BLUETTI

BLUETTI Elite 30 V2

An outdoor dinner table lit by warm string lights after dark
Capacity
288Wh
Chemistry
LiFePO4 (automotive-grade)
AC output
600W continuous / 1,500W surge
Weight
9.5 lb
Max solar input
200W
Cycle rating
Over 3,000 cycles; 10-year lifespan
AC recharge
Full in 70 min
Warranty
5 years
Check price on Amazon

#ad We earn a commission at no extra cost to you. How this is funded

This is where the verdict flips. 288Wh with 600W continuous and a 1,500W lifting figure out of 9.5 lb, against the EcoFlow RIVER 3 Plus's 600W and 1,200W from 286Wh. Same continuous output, 25% more surge headroom, and crucially a published warranty where EcoFlow publishes none for the RIVER 3 Plus on its US page.

BLUETTI publishes over 3,000 cycles and a 10-year lifespan, a 70-minute full recharge, a UPS switchover of 10 ms or less, nine output ports including USB-C PD 3.1 at 140W, and 200W of solar input. The 5-year warranty is the difference-maker in this class.

BLUETTI states the Elite 30 V2 does not support expansion, and it publishes no dimensions and no cycle retention threshold. If growing past 288Wh matters, the RIVER 3 Plus goes to 858Wh wire-free and the BLUETTI does not go anywhere.

Reasons to buy

  • 600W continuous, 1,500W surge from 288Wh
  • 5-year warranty, published
  • Over 3,000 cycles and a stated 10-year lifespan
  • Full recharge in 70 minutes; 10 ms or less switchover
  • Nine output ports including 140W USB-C

Reasons to avoid

  • No battery expansion, per BLUETTI
  • 200W solar input, just behind the RIVER's 220W
  • No dimensions published
  • No cycle retention threshold published

Buy it if: the most output and the clearest warranty under 10 lb.

Skip it if: you will want more than 288Wh later.

A note on these figures: BLUETTI publishes 288Wh, 600W continuous, a 1,500W lifting/surge figure, 200W maximum solar input, a 70-minute full AC recharge, a UPS switchover of 10 ms or less, 'over 3,000 cycles and a 10-year lifespan', a 5-year warranty, nine output ports and 4.3 kg. The 9.5 lb figure is our conversion of BLUETTI's 4.3 kg. BLUETTI does not publish dimensions, a full port breakdown or a cycle-life retention threshold on its product page, so those are left blank rather than taken from a retailer listing.

4. The small unit that grows

EcoFlow RIVER 3 Plus

A phone charging from a small battery pack outdoors
Capacity
286Wh
Chemistry
LiFePO4
AC output
600W continuous / 1,200W surge
Weight
10.4 lb
Max solar input
220W
Cycle rating
3,000 cycles to 80% capacity
AC recharge
0-100% in 60 min
Warranty
Not published on the US product page
Check price on Amazon

#ad We earn a commission at no extra cost to you. How this is funded

286Wh at 10.4 lb, 600W continuous, a 1,200W surge, and the only sub-11 lb unit in this site's registry that expands — to 858Wh with a wire-free extra battery. That expansion path is the single reason to pick it over the BLUETTI above.

EcoFlow publishes 3,000 cycles to 80%, 0-100% in 60 minutes, 220W of solar input, three AC outlets, a 100W USB-C and a compact 9.2 x 9.1 x 5.8 in footprint. The published dimensions are a small win over BLUETTI, which publishes none for the Elite 30 V2.

EcoFlow publishes no warranty term for this model on its US product page, which is the one real gap in the sheet and the reason it does not win this class. We are not going to infer a term from another model's page.

Reasons to buy

  • Expands to 858Wh wire-free — unique in its class
  • 0-100% in 60 minutes
  • 220W solar input; published dimensions
  • 600W continuous, 1,200W surge
  • 10.4 lb; 3,000 cycles to 80%

Reasons to avoid

  • No warranty term published on EcoFlow's US page
  • 1,200W surge, below the BLUETTI's 1,500W
  • 27.5Wh per pound — weakest ratio in the small class
  • 286Wh will not run a household fridge for long

Buy it if: a small unit you expect to outgrow.

Skip it if: a published warranty term is non-negotiable.

Read the full EcoFlow RIVER 3 Plus review →

Questions

Frequently asked questions

Is BLUETTI or EcoFlow better?
EcoFlow in the 1kWh class and BLUETTI in the 288Wh class. The EcoFlow DELTA 3 Plus takes 1,000W of solar against 500W, expands to 5kWh where the BLUETTI AC180 does not expand, surges to 3,600W against 2,700W and refills in 56 minutes. The BLUETTI Elite 30 V2 wins the small class on a published 5-year warranty and 1,500W of surge, where EcoFlow publishes no warranty term for the RIVER 3 Plus.
Which has the bigger battery, BLUETTI or EcoFlow?
BLUETTI, in the 1kWh class: the AC180 holds 1,152Wh against the DELTA 3 Plus's 1,024Wh, an 11% difference. It also weighs 28% more doing it, at 35.27 lb against 27.6 lb.
Which brand is better for solar?
EcoFlow, decisively. The DELTA 3 Plus accepts 1,000W across two MPPT inputs against the BLUETTI AC180's 500W, and the DELTA 2 Max also accepts 1,000W. A solar input ceiling cannot be argued up, so if panels are the recharge plan this is the gap that matters most.
Do BLUETTI power stations expand with extra batteries?
Not the two in this site's registry. BLUETTI states plainly that the Elite 30 V2 does not support battery expansion, and the AC180 does not expand either. EcoFlow's DELTA 3 Plus goes to 5kWh, the DELTA 2 Max to 6kWh and the RIVER 3 Plus to 858Wh.
Whose warranty is better?
BLUETTI's coverage is more consistently documented. Both brands publish 5 years on their 1kWh units, but EcoFlow publishes no warranty term at all for the RIVER 3 Plus on its US product page, while BLUETTI publishes 5 years on the Elite 30 V2. On a small unit bought for the long term, that is a real difference.
Which is better for home backup?
EcoFlow, because of the expansion path — a 1kWh unit is well under a fridge-day, and the DELTA 3 Plus can grow to 5kWh by adding batteries. If your outages are short and you only need a wall-charged buffer, the AC180's extra 128Wh and four outlets are a reasonable argument the other way.

Sources