Head-to-head test
EcoFlow DELTA 3 Plus vs EcoFlow DELTA 3000 Gen4Three Times the Battery, No Room to Grow. Buy Big or Start Small?
The DELTA 4 (3000) holds three 3 Pluses' worth of battery and runs twice the load, but it never takes another battery. I'd buy it for a house that loses power, unless the box lives in your car or you'd rather grow a small one a battery at a time.
Black Friday · 23 days out
Price to beat:DELTA 3 Plus $649
The lowest we have recorded. A Black Friday price above it is a sale this unit has already had.
Full profiles: EcoFlow DELTA 3 Plus → · EcoFlow DELTA 3000 Gen4 →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
Gunner’s take
Whole-Home Backup Tester
The DELTA 4 (3000) is three DELTA 3 Pluses of battery in one box, with twice the inverter.
That's 3,072 Wh against 1,024 Wh, and 3,600 W of output against 1,800 WB1B2. What it can't do is grow. It has no port for an extra batteryB6, so the box you buy is the box you keep.
So this page is really about whether you buy big once or start small and add.
Our eight-hour blackout needs 1,645 Wh. The 3 Plus runs out 775 Wh short, and the DELTA 4 (3000) finishes with 966 Wh left. The 3 Plus can take EcoFlow's extra batteries to close that gap, but every one you add leaves its inverter exactly where it was.
Per watt-hour, the big box is the cheaper one.
It's $1,699 against $719, on sale now at EcoFlow's US store and shipping in early DecemberB10. The 3 Plus is already on sale. If you need power before the DELTA 4 (3000) reaches your porch, that alone settles it.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
That leftover is more than half of a second night. Outages don't end when the forecast says they will, and the box with charge left at breakfast is the one that lets you wait for the grid instead of choosing between the fridge and the router. The 3 Plus gets you through the evening and leaves the small hours dark.
DELTA 3 Plus: 1,024 Wh, about 870 Wh usableDELTA 4 (3000): 3,072 Wh, about 2,611 Wh usable8-Hour Blackout needs 1,645 Wh
Why it mattersIf you're buying for outages, the 3 Plus on its own isn't the answer and the DELTA 4 (3000) is.
continuous output
The add-later plan buys watt-hours, never watts. A fully grown 3 Plus still tops out at 1,800 W, half of what the sealed box runs from day one. And it costs the 3 Plus plus every battery after it, so if those batteries come to more than the $980 between the two units, buying big once was the cheaper road.
DELTA 4 (3000): no extra-battery portB6DELTA 3 Plus: takes EcoFlow expansion batteriesDELTA 3 Plus: 1,800 W continuous; DELTA 4 (3000): 3,600 WB2
Why it mattersPrice EcoFlow's extra batteries before you treat the 3 Plus as a starting point, and only take that road if you'll outgrow 3,072 Wh.
weight
A tailgate or a CPAP night never touches most of the DELTA 4 (3000)'s battery. What you'd feel is 30.3 lb more from the trunk to the setup spot, and no round 12 V socket for the cooler that plugs into one.
DELTA 3 Plus: 27 lbDELTA 4 (3000): 57.3 lb, a handle at each endB7Tailgate Party needs 670 Wh; the 3 Plus finishes with 200 Wh left12 V car socket: one on the 3 Plus, none on the DELTA 4 (3000)B3
Why it mattersIf the box lives in the car, the 3 Plus is the better tool even though it's the smaller one.
The specific dimensions that decide these two units — everything else is a tie.
Your Life, Your Pick
Selected because: The DELTA 4 (3000) finishes five of our six scenarios and the 3 Plus finishes two. The 3 Plus misses the long ones.
Every long job goes to the DELTA 4 (3000). Weekend Camping needs 2,100 Wh and leaves the 3 Plus 1,230 Wh short. The DELTA 4 (3000) finishes it with 511 Wh to spare, and the blackout splits the same way.
The remote workday is the near miss worth knowing. The 3 Plus needs 910 Wh there and has 870 Wh usable, a 40 Wh gap. Unplug one small load for part of the day and it finishes. A CPAP night and a tailgate fit in both, and on those I'd rather carry the 3 Plus.
Growth Path
Selected because: 1,024 Wh that can grow against 3,072 Wh that never will.
Expansion is the 3 Plus's one real answer, and it only answers half the question. It takes EcoFlow's extra batteries, and it needs two more 3 Pluses' worth of them to hold what the DELTA 4 (3000) ships with. Batteries add watt-hours. They don't add watts, so a fully grown 3 Plus still tops out at 1,800 W.
Past 3,072 Wh, the 3 Plus is the only one of the two that keeps going. The DELTA 4 (3000) has no battery port at all; EcoFlow saves that for the bigger DELTA 4B6. I'd price the extra batteries before picking the 3 Plus as a starting point. If they add up to more than the $980 between the two, the sealed box was the cheaper way to the same battery.
Portability & Form Factor
Selected because: 27 lb against 57.3 lb, and only the small one keeps a 12 V car socket.
weight
The 3 Plus goes where you go. At 27 lb it's a one-hand lift onto a back seat. The DELTA 4 (3000) is 57.3 lb with a handle at each endB7, a two-hand lift I'd make from the truck bed to the porch and no further. EcoFlow sells a folding cart for it separatelyB7.
Only the 3 Plus keeps a 12 V car socket. That's the round port a 12 V cooler or a tire inflator plugs into, and the DELTA 4 (3000) has noneB3. If your camping kit runs on one, the bigger box has nowhere to plug it.
What the Specs Don't Tell You
Selected because: A sealed battery, 6,000 cycles against 4,000, and a wall charger worth checking against your breaker.
rated cycles
The sealed battery is the honest catch on my pick. For a fridge, a router and lights through one night, 3,072 Wh is plenty. If you already know your needs are about to grow, that's the reason to pause and look at the 3 Plus or the bigger DELTA 4.
Its fastest wall charge wants a whole household circuit. EcoFlow rates X-Stream charging at up to 1,800 W, which is 15 A at 120 V, the full rating of an ordinary 15 A circuitB4. If that outlet shares a breaker with the fridge, I'd turn the charge rate down in the EcoFlow app before the breaker does it for meB4.
Every port, labelled
What plugs in where, and how much it takes
EcoFlow DELTA 3 Plus
Front panel
- 12× USB-C · 140 WOutTwo USB-C ports, printed USB-C 140W: up to 140 W each by EcoFlow’s spec table. Enough for a big laptop.
- 22× USB-A · 36 WOutTwo USB-A ports printed FAST CHARGE, 36 W max by EcoFlow’s spec table.
- 36× AC outletsOutSix outlets, three two-prong and three T-slot, sharing 1,800 W and a 3,600 W surge. X-Boost runs devices up to 2,200 W.
Photo: EcoFlow · Product image, EcoFlow US store · numbers and labels are ours. Ratings printed on EcoFlow’s panel and listed in the spec table on EcoFlow’s US store page.
Rear panel
- 1Solar/car in · 500 WInPrinted SOLAR/CAR INPUT. An XT60 input, 11 to 60 V, up to 500 W of solar.
- 2Battery portIn · OutPrinted EXTRA BATTERY PORT. EcoFlow lists the DELTA 3, DELTA 2, DELTA 2 Max and DELTA Pro 3 extra batteries, connected by its Alternator Charger XT150 Output Cable, up to 5 kWh in all.
- 3AC in · 1,500 WInPrinted AC CHARGE. Charges at up to 1,500 W.
- 412 V car socket · 126 WOutA capped car socket, 12.6 V at 10 A, 126 W max.
- 52× DC5521 · 3 AOutTwo DC5521 barrel outputs, 12.6 V at 3 A max; 3A MAX is printed between them.
The inputs sit behind the flap, shown closed. EcoFlow’s spec table lists two solar inputs of 500 W each (1,000 W in all), but the flap marks only one, so where the second sits isn’t shown here. The DC ON/OFF button switches the car socket and the barrel ports.
Photo: EcoFlow · Product image, EcoFlow Canada store · numbers and labels are ours. Port names printed on EcoFlow’s panel; ratings and battery list from the spec table and product copy on EcoFlow’s US store page; the connector type from our catalogue.
EcoFlow DELTA 3000 Gen4
Front panel
- 1USB-C · 140 WOutUp to 140 W (USB-PD up to 28 V at 5 A). The port for a laptop.
- 22× USB-C · 65 WOutUp to 65 W each. EcoFlow says these two and the USB-A share 16 W when two or more are in use at once.
- 3USB-A · 36 WOutUp to 36 W (5, 9 or 12 V at 3 A).
- 430 A twist-lockOutA three-slot twist-lock marked 30A MAX, rated 30 A at 120 V on the US unit.
- 54× 20 A outletsOutFour T-slot 120 V outlets rated 20 A each, sharing 3,600 W continuous and a 7,200 W surge.
Photo: EcoFlow · Product image, EcoFlow Japan store · numbers and labels are ours. Ratings from EcoFlow’s US spec table; outlet shapes read by us from EcoFlow’s picture, taken of the Japanese unit, which shares the US panel.
Input side
- 1Solar/DC in · 1,000 WIn11 to 60 V, up to 20 A, 1,000 W.
- 2AC in · 1,800 WIn100–120 V at 15 A. Charges at up to 1,800 W, which at 120 V is the whole of an ordinary 15 A circuit.
No battery port: the 3000 doesn’t take extra batteries.
Photo: EcoFlow · Product image, EcoFlow Japan store · numbers and labels are ours. Ratings from EcoFlow’s US spec table and the panel’s own printing.
Strengths & trade-offs
EcoFlow DELTA 3 Plus
Strengths
- +Costs $980 less
- +Lighter by 30.3 lb
Trade-offs
- –Weaker inverter (-1,800W) limits appliance compatibility.
- –Shorter-lived battery — rated for 4,000 charge cycles vs the DELTA 3000 Gen4's 6,000, so it wears out sooner.
EcoFlow DELTA 3000 Gen4
Strengths
- +Larger battery capacity
- +Higher AC output
- +Rated for 6,000 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$980) than the DELTA 3 Plus.
- –Significantly heavier (+30.3 lbs), making it harder to move.
Will It Power Your Gear?
Scenario math and per-appliance runtimes, modeled from the spec record.
Scenario verdicts
We ran the math on six real-world scenarios. Here's which unit survives your actual life.
SCN-01 · 2 nights · needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
DELTA 3000 Gen4
The DELTA 3 Plus doesn't finish — 870Wh usable against the 2,100Wh this needs leaves it 1,230Wh short, about 41% of the scenario covered. The DELTA 3000 Gen4 covers it with 511Wh to spare.
Battery budget usedlower = more headroom
LOAD Phone Charger 15W×6h · LED Lights 40W×8h · Box Fan 75W×14h · CPAP Machine 40W×16h
SCN-02 · 8 hours · needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
DELTA 3000 Gen4
The 3 Plus runs 775 Wh short of the 1,645 Wh night. The DELTA 4 (3000) finishes with 966 Wh left, more than half of a second one.
Battery budget usedlower = more headroom
LOAD Fridge 150W×8h · Router + Modem 20W×8h · LED Lights (4 bulbs) 40W×6h · Phone Charger 15W×3h
SCN-03 · 8 hours · needs 320Wh
CPAP Overnight
Sleep therapy without interruption — the #1 medical use case
Either unit
A CPAP is about 40W for eight hours, so both of these cover the night at least twice over — capacity isn't the question here. The only published difference is fan noise, and it can't settle this: the DELTA 3 Plus is rated 30dB and the DELTA 3000 Gen4 40dB, but the DELTA 3 Plus's is its maker's best case and the DELTA 3000 Gen4's is EcoFlow's maximum under heavy charge and discharge, so at a 40W draw the real gap can only be narrower than it looks, and may even run the other way. Neither settles which box is quieter at a bedside. Buy whichever is cheaper or easier to carry.
Battery budget usedlower = more headroom
LOAD CPAP Machine 40W×8h
SCN-04 · 8 hours · needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
DELTA 3000 Gen4
The 3 Plus misses by 40 Wh, close enough that one trimmed load gets it there. The DELTA 4 (3000) finishes with 1,701 Wh to spare.
Battery budget usedlower = more headroom
LOAD Laptop 60W×8h · External Monitor 30W×8h · Router + Modem 20W×8h · Phone Charger 15W×2h
SCN-05 · 4 hours · needs 670Wh
Tailgate Party
Game day power for the crew
DELTA 3000 Gen4
Both handle game day; the DELTA 3000 Gen4 keeps more in reserve (26% used vs 77%). Tailgating is a light load, though, so the number you'll feel is weight: 27 lbs for the DELTA 3 Plus against 57.3 lbs for the DELTA 3000 Gen4, from the trunk to the setup spot.
Battery budget usedlower = more headroom
LOAD Blender 400W×0.5h · LED TV (55") 80W×4h · Bluetooth Speaker 15W×4h · Phone Charger (×3) 45W×2h
SCN-06 · 24 hours · needs 4,685Wh
Van Life Daily
A full day of mobile living — the ultimate endurance test
Neither unit
Neither covers 4,685 Wh. The 3 Plus can at least take extra batteries; the DELTA 4 (3000) stays at 3,072 Wh.
Battery budget usedlower = more headroom
LOAD Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h
The Load Test
RUNTIME = (Wh × 0.85) ÷ LOAD
None of the scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.
Essentials
Comfort & Convenience
High-Draw Appliances
Test duration
8h
Continuous draw
205W
Projected runtime
For this load: DELTA 3000 Gen4 runs 12.7h vs 4.2h.
$1,699 list · direct from EcoFlow
Planning for more than this? Describe your whole setup and get it sized →
Modeled from the spec record — same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.¹
Essentials
The basics you need runningscale 0–174.1hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–34.8hHigh-Draw Appliances
These reveal the real limitsscale 0–2.6h¹ Runtime = (capacity × 0.85) ÷ appliance watts. Within each group, all bars share one time scale (the group's longest runtime), so lengths are comparable across appliances; identical runtimes collapse into a single blue/orange bar. Actual runtime varies with battery age, temperature, and simultaneous loads — see methodology.
Conclusion
November 4, 2026
Verdict: the DELTA 3000 Gen4, on Power Score margin
I'd buy the DELTA 4 (3000) for a house that loses power, and the 3 Plus for a car. It holds three times the battery, runs 3,600 W against 1,800 WB2, and at $1,699 against $719 it still costs less for every watt-hour it holds. It finishes the blackout, the camping weekend and the remote workday that the 3 Plus can't. The price of all that is 57.3 lb against 27 and a battery sealed at 3,072 Wh for goodB6. It ships in early DecemberB10, so if you need power sooner, or the box rides in your car, the 3 Plus is the better buy.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of November 4, 2026. The links below open EcoFlow's current price.
$1,699.00 · direct from EcoFlow
or check the DELTA 3 Plus price$719.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated November 4, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): CPAP, Camping.
Full specifications
ᵈ Derived: price ÷ rated capacity. See the data behind our comparisons →
Comparison ToolAdd more power stations, side by sideOpen Tool →How these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it — no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews — see Sources & Research Notes below.
Runtime model
Runtime = (rated capacity × 0.85 inverter efficiency) ÷ device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.
Power Score
Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.
See the full weight table and data sourcing on our methodology page →Class ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews — no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5★. Here, DELTA 3 Plus rates 4.3/5 (62nd percentile of 27 Everyday-class units), and DELTA 3000 Gen4 rates 4.8/5 (86th percentile of 29 Large-class units).
How the class ranking is computed →Test Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
Done Growing at 3,072 Wh
The DELTA 4 (3000) holds 3,072 Wh and has no way to add more. The 3 Plus starts at 1,024 Wh and takes extra batteries, so it only pulls ahead once you'd want more than 3,072 Wh, and even then it runs half the load.
Warranty: No Difference
Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here. Both figures are maximums rather than guarantees — they depend on registering the unit in the EcoFlow app, which adds two years to a three-year standard term. Worth saying because the per-dollar framing can suggest otherwise: the DELTA 3 Plus works out at 7 years of cover per $1,000 spent against the DELTA 3000 Gen4's 2.9, but that spread is the price gap, not the terms.
Battery Lifespan in Real Years
The DELTA 3000 Gen4 is rated for 6,000 cycles vs 4,000. In real life: at daily use, that's 16.4 vs 11 years. At weekend use (twice a week), it's 58 vs 38 years. One caution reading years across different sizes: a cycle is 3,072Wh on the DELTA 3000 Gen4 and 1,024Wh on the DELTA 3 Plus, so count lifetime energy — roughly 18,432 kWh against 4,096 kWh over the rated life. After hitting the cycle limit, the battery doesn't die — it drops to ~80% of original capacity, which is still very usable.
Full record above — the Test Desk pick is the DELTA 3000 Gen4.
Check DELTA 3000 Gen4 price →or check the DELTA 3 Plus priceOwnership Analysis
What happens after you buy — true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.
Analyst note
The DELTA 3 Plus is cheaper to buy, but the DELTA 3000 Gen4 is cheaper to own. At $0.09/kWh over its lifetime vs $0.18/kWh, the DELTA 3000 Gen4's higher cycle life and capacity make each dollar go further over the years.
Growth path
DELTA 3 Plus
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 1,024Wh.
Accepts up to 1,000W of solar. Enough for a serious multi-panel array.
Generous port selection supports complex multi-device setups.
Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.
DELTA 3000 Gen4
FIXED CAPACITYFixed at 3,072Wh — a sealed, complete system rather than a starting point. There's no expansion port, so that figure is the ceiling: check it against your longest unplugged stretch before you buy.
Accepts up to 1,000W of solar. Enough for a serious multi-panel array.
Adequate ports for most setups, but heavy users may want a power strip.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Don't read the DELTA 3 Plus's expandability as a straight win here: it starts at 1,024Wh, below the DELTA 3000 Gen4's 3,072Wh, so a first expansion battery largely buys back capacity the DELTA 3000 Gen4 already includes. It only pulls ahead if you'd grow past 3,072Wh — short of that, the DELTA 3000 Gen4's larger fixed capacity is the simpler value.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3 Plus
Reviewers like how fast the 3 Plus recharges and how quickly it switches over. Coverage praises its recharge speed and a switchover under 10 ms when the grid dropsA3. The complaint that keeps coming back is the fans, which start at light loads and cycle on and offA1A2.
Reviewers think a firmware update could fix thatA4. Until one does, I'd listen to a 3 Plus at a light load before it goes beside a bedA1.
“Otherwise well-designed, with very fast recharge times and a seamless sub-10ms UPS switchover for uninterrupted power.”
Sources
thesolarlab.com
EcoFlow DELTA 3000 Gen4
Nobody owns a DELTA 4 (3000) yet. It went on sale at EcoFlow's US store on launch day and ships in early December, so everything here is EcoFlow's own spec page plus our arithmeticB1B4B10.
I'd want to plug one into a kitchen outlet that shares a breaker with the fridge, leave the charge rate at full, and see whether EcoFlow's charger backs off before the breaker doesB4. That's the test that tells you where it can live in a real house.
“Capacity 3,072 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3000 Gen4; buyers and the press call the pair the DELTA 4.”
Sources
us.ecoflow.co · jp.ecoflow.co
Sources & Research Notes
Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.
Recurring owner themes
- The DELTA 3 Plus's headline weakness is fan behavior — fans run even at low load and cycle erratically, undercutting its quiet-UPS marketing. [DELTA 3 Plus · 3 entries]
- Launch-day ledger: every entry is EcoFlow's own US store and documentation, or our labelled arithmetic. No owner or reviewer evidence exists yet. [DELTA 3000 Gen4 · 12 entries]
- A1
“Marketed as near-silent, but real-world fan performance is a significant flaw: the fans activate even under low loads and cycle on and off erratically, which limits its effectiveness as a quiet UPS.”
T3 — EcoFlow DELTA 3 Plus review: Lightning-fast charging with a noisy flaw; thesolarlab.com — DELTA 3 Plus Review · 2026 · [negative]
- A2
“Part of why it stays quiet is that the internal fans aren't always doing their job properly — the erratic cycling raises the risk of the unit overheating when running heavy loads.”
thesolarlab.com — EcoFlow DELTA 3 Plus Review: Amazing, but One Big Quirk? · 2026 · [negative]
- A3
“Otherwise well-designed, with very fast recharge times and a seamless sub-10ms UPS switchover for uninterrupted power.”
T3 / thesolarlab.com — DELTA 3 Plus reviews · 2026 · [positive]
- A4
“Reviewers note EcoFlow should be able to resolve the fan behavior with a software update, as it has done for other power stations after release.”
thesolarlab.com — DELTA 3 Plus Review · 2026 (dated claim — may be partially addressed by firmware) · [mixed]
- B1
“Capacity 3,072 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3000 Gen4; buyers and the press call the pair the DELTA 4.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- B2
“US unit: 120 V AC, 60 Hz; rated 3,600 W continuous with a 7,200 W surge. It supports X-Boost (EcoFlow refers to the manual for the US X-Boost figure); X-Boost is unavailable while the unit charges from the wall or runs in bypass.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- B3
“AC outlets: 5 total, four rated 20 A max and one rated 30 A max (on EcoFlow's product images, four T-slot outlets and a three-slot twist-lock). USB-A: one port, 36 W max. USB-C: one at 140 W max and two at 65 W max; the two 65 W ports share circuitry with the USB-A, limited to 16 W total when used together. No 12 V car socket.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- B4
“AC input 100–120 V, 15 A, 50/60 Hz; X-Stream charging up to 1,800 W from a US wall outlet. Our arithmetic: 1,800 W at 120 V is 15 A, the full rating of an ordinary 15 A circuit, so on a shared circuit you would set the charge rate lower in the EcoFlow app.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- B6
“No extra-battery port. EcoFlow lists expansion only for the DELTA 3800 Gen4 (two extra batteries through its expansion adapter); the 3000 is sealed at 3,072 Wh.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- B7
“Weight 57.3 lb (26 kg); 16.77 × 11.36 × 12.09 in without handles, 18.76 in long with them. A handle at each end; EcoFlow sells a folding transport cart separately ($109 at launch, listed at $199). EcoFlow calls it the smallest and lightest portable power station in its class (3 kWh and 3,600 W).”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- B10
“On sale at us.ecoflow.com from November 4, 2026 at $1,699; EcoFlow says it ships in early December. Kit with two 160 W solar panels $2,299. EcoFlow also sells it in Japan, where it went on sale October 30 at ¥179,900.”
EcoFlow US store, us.ecoflow.com/products/delta-3000-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
Research compiled November 4, 2026.
Who Should Buy Which
Buy the DELTA 3 Plus if you…
- →It rides in your car. 27 lb against 57.3, and a CPAP night or a tailgate fits with room left.
- →You need power sooner. The DELTA 4 (3000) ships in early DecemberB10; the 3 Plus is on sale now at $719.
- →You'd rather grow it a battery at a time. The 3 Plus takes EcoFlow's extra batteries; the DELTA 4 (3000) never willB6.
- →Your cooler plugs into a 12 V car socket. The 3 Plus has one and the DELTA 4 (3000) has noneB3.
Buy the DELTA 3000 Gen4 if you…
- →You want one box for a whole outage night. It finishes our 1,645 Wh blackout with 966 Wh left.
- →Several things in the house run at once. 3,600 W continuous and a 7,200 W surge, against 1,800 W and 3,600 WB2.
- →You'll never need more than 3,072 Wh. Then a sealed battery costs you nothing.
- →You'll cycle it hard. EcoFlow rates it for 6,000 cycles against the 3 Plus's 4,000.
If neither fits
If your days look like Van Life Daily at 4,685 Wh, close this tab. The DELTA 4 (3000) comes up 2,074 Wh short and can't grow, and the 3 Plus would need a stack of extra batteries. Look at a station that starts bigger and still expands, like the bigger DELTA 4B6 or the DELTA Pro 3.
The Bottom Line
For a house that loses power, I'd buy the DELTA 4 (3000). It holds exactly three times the battery, runs twice the load, finishes the blackout the 3 Plus can't, and costs less per watt-hour doing it.
For a car, a campsite, or power before it ships, buy the 3 Plus. It's less than half the weight, it keeps the 12 V socket, and it can grow a battery at a time.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
How much does the EcoFlow DELTA 4 (3000) cost in the US?
EcoFlow lists it at $1,699 on its US store, where it went on sale on November 4, 2026 and ships in early December. The DELTA 3 Plus is $719.
Can you add batteries to the DELTA 4 (3000)?
No. It has no extra-battery port, so 3,072 Wh is all it will ever hold. The DELTA 3 Plus takes EcoFlow's extra batteries.
Can the DELTA 3 Plus run the same appliances as the DELTA 4 (3000)?
Not the big ones together. The DELTA 3 Plus runs 1,800 W continuous with a 3,600 W surge, and the DELTA 4 (3000) runs 3,600 W with a 7,200 W surge. Adding extra batteries to the 3 Plus makes it last longer but doesn't raise its output.
Can the DELTA 3 Plus get through a night without power?
Not our eight-hour blackout on its own. That load needs 1,645 Wh and the DELTA 3 Plus has about 870 Wh usable, so it runs 775 Wh short. The DELTA 4 (3000) finishes it with 966 Wh left.
Which one is lighter?
The DELTA 3 Plus, at 27 lb against 57.3 lb for the DELTA 4 (3000). It also holds a third of the battery.
Where to buy
EcoFlow DELTA 3 Plus
$719.00
$719.00 · direct from EcoFlow
Last checked 31 days ago. Prices move — check before you buy.
EcoFlow DELTA 3000 Gen4Pick
$1,699.00
$1,699.00 · direct from EcoFlow
Prices may vary by retailer and are subject to change.