Head-to-head test
EcoFlow DELTA 3 1000 Air vs Goal Zero Yeti 300
EcoFlow stopped making the Air, so the only live question on this page is whether 252Wh of usable energy covers your evening, because that is all the Yeti 300 brings however long it lasts.
Full profiles: Goal Zero Yeti 300 →
Written by Wenny ZhengUpdated
Portable Power Tester, Station Arena Test Desk
Spec deltas
EcoFlow has discontinued the DELTA 3 1000 Air. It's gone from EcoFlow's own store and out of our price trackingA0A4, which is why this page carries no price and no buy button beside it, and why the recommendation here has exactly one live candidate: the Goal Zero Yeti 300. EcoFlow's designated replacement for the Air is the DELTA 3 Classic.
That makes the Yeti 300 the winner by survival, and the margin is worth being honest about. It holds 297Wh where the Air held 960Wh, and of the seven load profiles on this page it finishes one. The Air's specs are still true and still worth reading if you own one or you've turned up retailer stock. But the choice in front of anyone shopping today is the Yeti 300 against the Air's successor, not against the Air.
So the live question is a small one, and it answers fast. 252Wh usable, 13.7 lbs, IP54 sealingB2, a 100W USB-C port and a five-year term. If your list is devices, that's a good buy. If it's a CPAP, a fridge or an eight-hour outage, the Yeti 300 will let you down in ways this page can measure.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Put those together and you have the unit's real identity: a fast, rugged charger for things that carry their own batteries, not a box that holds a load until morning. Anything that has to run unattended for eight hours sits outside it, and the 100W port is the tell. Goal Zero built this to top devices up, not to sustain appliances.
297Wh nameplate on the Yeti 300, which the flat 15% conversion allowance takes to 252Wh usableOur CPAP Overnight profile draws 320Wh across a nightIts fastest USB-C port delivers 100W, against 18W on the Air
Why it mattersIf your shopping list has one thing that must run all night, this isn't it. If it's a laptop, a camera and three phones, it's close to ideal.
A surge rating buys you the startup, not the job. Read 350W as the Yeti 300's real ceiling and 600W as a courtesy, and the whole appliance category drops off your list before you buy rather than in a parking lot with a dead griddle.
350W continuous output with 600W of surge headroomOur Tailgate Party profile needs 400W at peakA reviewer testing it near the 300W line watched it shut down after about two minutes on a coffee makerB3
Why it mattersAnyone whose reason for shopping is one 400W-plus appliance should skip both units and size up.
rated cycles
Cycle counts flatter small batteries. What 4,000 cycles actually promise here is that the pack won't be the thing that limits you, and with five years of cover behind it they're a credible promise. What ends this unit's usefulness is you needing more energy than it holds, not the cells wearing out.
4,000 rated cycles on the Yeti 300 against 3,000 on the AirA Yeti cycle moves 297Wh; an Air cycle moves 960WhOver the rated life that works out to roughly 1,188 kWh against 2,880 kWh
Why it mattersBuy this on whether 252Wh covers your evening and ignore the cycle number entirely. It isn't the constraint.
That model works beautifully where sun or a socket comes around every day, and collapses the moment neither does. In a real outage you aren't refilling anything, and 15% of the load is simply what you have.
200W maximum solar input into a 297Wh pack0 to 100% in about 50 minutes from the wallB2Our 8-Hour Blackout profile needs 1,645Wh, of which the Yeti 300 covers 15%
Why it mattersCampers and day-trippers with a daily charge source should buy it cheerfully. Anyone buying for a multi-day blackout should not.
The specific dimensions that decide these two units — everything else is a tie.
Your Life, Your Pick
Selected because: Seven load profiles, and the Yeti 300 finishes one of them, so the real question isn't which unit wins but whether your evening fits inside 252Wh.
One of seven, and the one it takes is the smallest on the board: 100Wh of phones and a speaker across an afternoon, finished at 40% used with 152Wh still in the pack. Everything above that the Yeti 300 either misses narrowly, like a CPAP night, or misses by a mile, like the 1,645Wh eight-hour blackout it covers 15% of.
Read the misses in two groups, because they mean different things. Weekend camping, van life and the blackout are jobs neither unit was built for, and the answer to all three is a bigger station rather than a choice between these two. The CPAP row and the tailgate row are the ones that sting. Both sit squarely in the size class the Yeti 300 is sold for, and it loses both by margins narrow enough to feel like bad luck.
Runtime: Will It Power Your Gear?
Selected because: 252Wh of usable energy is four to six hours on a laptop or twenty to thirty phone charges, and this is where that gets concrete.
continuous output
252Wh spends fast when you say it out loud: four to six hours on a laptop, or twenty to thirty phone chargesB3. That's a long Saturday of devices. It's also one evening of anything with a compressor or a heating element in it, and then you're done.
The spec that changes how that feels isn't the capacity, it's the 100W USB-C port. Charging a laptop at 100W rather than 18W means the pack does its work and stops instead of trickling all afternoon. On a 297Wh unit, speed is what makes a small battery feel adequate rather than cramped.
What the Specs Don't Tell You
Selected because: Five spec catches fire on this pair, and the two that would change a purchase are USB-C wattage and how long each warranty runs.
rated cycles
Five catches fire here and only two would change a purchase. The USB-C gap is the big one and it falls in the live unit's favour: 100W against 18W is more than five times the per-port rate, and it's the difference between a laptop that charges and a laptop that charges eventually.
The second is the warranty, five years against two, which counts for more on a small unit than a large one because a small unit gets thrown in a car and forgotten. Then there's the noise line, which is honest about itself. The Air published a figure and the Yeti 300 doesn't, and an absent number is not evidence of a loud fan. If you're buying for a bedroom you'll have to go find hands-on reports, because the spec sheet won't answer it.
Brand Trust
Selected because: One of these two lines has just dropped the unit you came to read about, and the other prices at a premium and asks you to trust a five-year term.
One of these brands has just retired the unit you came here to read about, which is the most useful brand fact on the page. EcoFlow's range is the widest in portable power and it turns over quickly. That's how a 960Wh box rated no worse than 10ms on UPS switchoverA2 leaves the range while its specs still read as current.
Goal Zero's pitch is the opposite of cadence: a small line, a case built to be left in a truck bed, and a long term on paper. The catch is that the premium-support argument which used to justify premium prices has thinned, so treat those five years as a contract rather than a relationship. Register the unit and keep the receipt instead of counting on a fast phone call.
Strengths & trade-offs
EcoFlow DELTA 3 1000 Air
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Shorter-lived battery — rated for 3,000 charge cycles vs the Yeti 300's 4,000, so it wears out sooner.
Goal Zero Yeti 300
Strengths
- +Lighter by 8.3 lb
- +Longer warranty
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –No major technical downsides compared to rival.
Will It Power Your Gear?
Scenario math and per-appliance runtimes, modeled from the spec record.
Scenario verdicts
We ran the math on seven 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
Neither unit
Neither unit covers this scenario's 2,100Wh: the DELTA 3 1000 Air comes up 1,284Wh short (about 39% covered), the Yeti 300 1,848Wh (12%). This is well outside what either unit is for; the right answer here is a larger station, not a choice between these two.
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
Neither unit
Neither unit covers this scenario's 1,645Wh: the DELTA 3 1000 Air comes up 829Wh short (about 50% covered), the Yeti 300 1,393Wh (15%). This is well outside what either unit is for; the right answer here is a larger station, not a choice between these two.
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
DELTA 3 1000 Air
The arithmetic goes to the Air, and the arithmetic no longer decides anything: it covers a 320Wh night with 496Wh to spare and it's out of production. What you can actually buy falls 68Wh short, 252Wh of usable energy against 320Wh, about four fifths of the night. In practice that means the machine stops at the wrong end of it. If a CPAP is the reason you're shopping, this row is pointing you past both units toward the Air's successor, the DELTA 3 Classic.
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
Neither unit
Neither unit covers this scenario's 910Wh: the DELTA 3 1000 Air comes up 94Wh short (about 89% covered) (its nameplate 960Wh actually clears this — the flat 15% conversion allowance is what tips it under), the Yeti 300 658Wh (28%). Treat this as partial cover — enough for the essentials in it, not the whole list.
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 3 1000 Air
600W of surge gets a 400W load moving and the 350W continuous rating can't keep it there, so the Yeti 300 starts your blender or your griddle and then quits on it. The Air holds the same scenario with 146Wh left, which is a fact about a unit nobody can order rather than a reason to go hunting for one. For a tailgate, size on the biggest single appliance you'll plug in, or plan on plugging in something smaller.
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 unit covers this scenario's 4,685Wh: the DELTA 3 1000 Air comes up 3,869Wh short (about 17% covered), the Yeti 300 4,433Wh (5%). This is well outside what either unit is for; the right answer here is a larger station, not a choice between these two.
Battery budget usedlower = more headroom
LOAD Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h
SCN-07 · an afternoon · needs 100Wh
Afternoon Off-Grid
Phones and a speaker at the park, beach, or campsite — the small-unit job description
Either unit
This is the Yeti 300's home row: phones, a speaker, 100Wh across an afternoon, home at 40% used with 152Wh still in the pack. Both units cover it comfortably, which leaves weight as the tiebreak, and 13.7 lbs against 22 lbs is the difference between carrying it one-handed to the far picnic table and deciding the near one will do. It's the one row on this page where nothing bigger would serve you better.
Battery budget usedlower = more headroom
LOAD Phone Charger (×2) 30W×2h · Bluetooth Speaker 10W×4h
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 3 1000 Air runs 4h vs 1.2h.
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 0–54.4hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–10.9hHigh-Draw Appliances
These reveal the real limits¹ 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
September 19, 2026
Verdict: the Goal Zero Yeti 300
Buy the Yeti 300, and know that you're buying it partly because the other unit no longer exists. It's a 297Wh box, 13.7 lbs, IP54 sealedB2, with a 100W USB-C port, 4,000 rated cycles and five years of cover, and it clears exactly one of the seven load profiles on this page: an afternoon of phones and a speaker. That's a real product with a real job, and the port and the case are worth paying for. What it is not is a stand-in for a 960Wh unit. It can't finish a CPAP night, and it starts a 400W appliance without holding it. So the recommendation splits on your load list rather than on the two units: if what you plug in has a battery of its own, the Yeti 300 is the right call. If it has a compressor or a heating element, the honest answer is neither of these, and the Air's named successor, the DELTA 3 Classic, is where EcoFlow points you.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of September 19, 2026. The links below open Goal Zero's current price.
Sold on Amazon · today’s price is on the listing
Written by Wenny Zheng, Portable Power Tester · Station Arena Test Desk · Updated September 19, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): Tailgating.
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 1000 Air rates 5.0/5 (99th percentile of 20 Compact-class units), and Yeti 300 rates 3.7/5 (22nd percentile of 24 Personal-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.
USB-C: 100W Against 18W
This is the one spec where the live unit simply wins, and it happens to be the spec that matters most for what the Yeti 300 is actually for. Its 100W USB-C port clears the 96W a MacBook Pro asks for, so the laptop charges at full speed. The Air's best USB-C port managed 18W, which is phone-charger territory and would have left the same laptop crawling, or under load not gaining at all. 100W against 18W is more than five times the per-port rate, and on a 297Wh pack that speed is most of what makes the small capacity workable.
UPS Switchover: ≤10ms vs ≤20ms
Both list a UPS mode, at different rated speeds. The DELTA 3 1000 Air is rated ≤10ms — quick enough on paper that desktop PCs and routers should ride through, treating that as the rating it is. The Yeti 300 is rated ≤20ms — fine on paper for routers and most electronics; the fussiest PC power supplies sit right at this line. If a computer with unsaved work is the thing being protected, the stated class is worth the attention; nothing here is a lab result.
Warranty: Five Years Against Two
Goal Zero covers the Yeti 300 for five years. EcoFlow's term on the Air was two. On a pack rated for 4,000 cycles, five years of cover means the warranty is still live long after you have stopped thinking about the unit, which is the right shape for something you throw in a car and forget. The catch is that a term is only as good as the claims desk behind it, so register the unit and keep the receipt rather than assuming the length of the term is the whole story.
Battery Lifespan in Real Years
The Yeti 300 is rated for 4,000 cycles vs 3,000. In real life: at daily use, that's 11 vs 8.2 years. At weekend use (twice a week), it's 38 vs 29 years. One caution reading years across different sizes: a cycle is 297Wh on the Yeti 300 and 960Wh on the DELTA 3 1000 Air, so count lifetime energy — roughly 1,188 kWh against 2,880 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.
Yeti 300: Noise Level Not Disclosed
The DELTA 3 1000 Air publishes its noise level (39dB); the Yeti 300 doesn't publish one. That isn't evidence the Yeti 300 is louder — it means there's no figure to hold it to, and no way to compare the two on this without hearing them. If you're buying for a bedroom, a CPAP, or an apartment, treat the DELTA 3 1000 Air's 39dB as the only published number on the table — a spec-sheet figure, not a measurement — and look for hands-on reports of the Yeti 300 before deciding.
Full record above — the Test Desk pick is the Yeti 300.
Check Yeti 300 price →Ownership 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 1000 Air is no longer sold, so there is no price to work its cost per kWh from, and this comparison doesn't quote one. On what you can actually buy today, the Yeti 300 works out at $0.29/kWh over its rated life. If you already own the DELTA 3 1000 Air, the hardware comparison still holds: over its rated life the DELTA 3 1000 Air delivers about 2,880 kWh and the Yeti 300 about 1,188 kWh. One caution on the lifespan row: the Yeti 300 takes longer to reach its cycle rating, but a cycle moves a different amount of energy on each unit — the DELTA 3 1000 Air still delivers more over its shorter horizon. Years measure wear, not usefulness.
Brand trust
EcoFlow
Ecosystem
Largest in portable power — 12-15 models across DELTA Pro, DELTA 3, and RIVER 3 series, plus solar panels and smart home panels
Support
US-based phone/email/chat support (1-800-368-8604). Experiences are polarized — many report hassle-free prepaid-label replacements, but others report long waits and refurbished units sent for new claims. Pro tip: buying from Costco or Amazon gives you a stronger return safety net.
Community
Largest community in the space — Reddit r/Ecoflow_community (~31K members), multiple Facebook groups, and an official community forum
App experience
Rated 4.6/5 iOS (~8,400 ratings) · 4.2/5 Android (~17,000 ratings)
Unique strength
Fastest-charging technology (X-Stream), deepest product ecosystem, and most active innovation cadence. At the top of the range sit two whole-home paths: the TITAN line, one 5 kWh unit that grows to 30 kWh, and the DELTA Pro Ultra platform, which stacks batteries and inverters further — flagship paths, not line-wide features.
Worth knowing
EcoFlow's range is the widest in portable power and it moves fast, which cuts both ways. The DELTA 3 1000 Air is a casualty of that cadence, retired while its specs still read as current. The line it belonged to carries on without it, and the DELTA 3 Classic is the replacement EcoFlow points to.
Goal Zero
Ecosystem
Focused rather than sprawling: the current sixth-generation Yeti and Yeti Pro line, Sherpa power banks below 100Wh, Alta coolers, Nomad and Ranger panels, and vehicle integration kits. The previous-generation X series is out of stock across Goal Zero's own store, so anything with an X in the name now means hunting retailer inventory.
Support
US-based, out of Salt Lake City, owned by NRG Energy. Premium support used to be the argument for premium prices, and that argument is thinner now. Treat the five-year warranty as a term on paper: register the unit properly and keep your paperwork rather than counting on a fast phone call.
Community
Small and loyal, strongest in overlanding and preparedness circles. The official forums were shuttered recently, so the conversation has scattered to Reddit and Facebook rather than living anywhere Goal Zero hosts.
App experience
Rated 4.4/5 iOS (~1,200 ratings) but recent reviews skew negative — recurring connectivity issues, crashes, and stability problems.
Unique strength
It invented this category and still builds like it. Ruggedized, weather-resistant cases with IP ratings that vary by model, and a Yeti-Ready ecosystem of coolers, lights and vehicle kits that genuinely plug into each other.
Worth knowing
Goal Zero prices at a premium per watt-hour as a matter of brand position, and reliability reports on the newer models are worth reading before you commit. What you're buying is heritage, ruggedness and a long warranty term rather than the most energy for the money.
Analyst note
The difference that matters here isn't ecosystem depth or app ratings. One of these brands stopped making the unit you came to compare, and the other is still selling its small unit at a premium with a long term behind it. If you're picking a line to buy into rather than a box to buy, EcoFlow gives you somewhere to go when 297Wh stops being enough, and Goal Zero gives you a case you can leave in a truck bed.
Growth path
DELTA 3 1000 Air
FIXED CAPACITYFixed at 960Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 500W of solar. Suitable for a 1-2 panel setup.
Limited ports. You'll likely need a power strip or splitter.
Yeti 300
FIXED CAPACITYFixed at 297Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 200W of solar. Limited to a single portable panel.
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
Growth only counts if you can still buy in, and the DELTA 3 1000 Air is no longer sold (EcoFlow points owners to the DELTA 3 Classic). That leaves the Yeti 300: it is sealed at 297Wh, so buy the size that covers you now. The DELTA 3 1000 Air's fixed 960Wh still matters if you already own one, but it isn't a reason to pick it over the Yeti 300.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3 1000 Air
The field record on the Air is reviewer-grade rather than owner-grade, which is what you'd expect of a unit retired before a long-term picture could formA0. What exists agrees on shape: a deliberately minimalist 960Wh LFP box with fewer ports than its siblingsA1, built as a power-protection device to keep a desk running through an outageA2. The recurring caveat is the one the spec sheet implies, that 500W won't run a space heater or a hair dryer and was never meant toA3. Our own research note records the discontinuation, with the DELTA 3 line continuing without itA0A4.
“A 960Wh LiFePO4 unit with a 500W inverter (800W X-Boost) weighing only 22 lbs — a focused, minimalist design with fewer ports and features.”
Sources
thesolarlab.com · batteryskills.com · backuppowerhub.com · matanich.com
Goal Zero Yeti 300
The Yeti 300 reads better in the hands than on the spec sheet, and reviewers say bothB1B2. The praise is all build: 13.7 lbs, IP54 sealing, rubberized corners, a handle that feels designed rather than moulded, and 0 to 100% in about 50 minutesB2. Goal Zero is openly selling service life over output here, with 4,000 rated cycles sitting behind a 350W inverterB1.
The complaints are the two you'd predict. Capacity holds it to light duty, four to six hours on a laptop or twenty to thirty phone charges, and pushing near the 300W line produced a shutdown after roughly two minutes on a coffee makerB3. And the money stings for what you get: one reviewer said so plainlyB4.
“A 297Wh LiFePO4 pack behind a 350W pure sine inverter (600W surge), rated 4,000 cycles — Goal Zero backs it with a long service life rather than raw output.”
Sources
goalzero.com · batteryskills.com · campingsolar.us · trailandkale.com · the-gadgeteer.com
Sources & Research Notes
Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.
Recurring owner themes
- A focused home-office UPS unit — LFP, 10ms UPS, quiet and light — but low 500W output; now discontinued in favor of the DELTA 3. [DELTA 3 1000 Air · 3 entries]
- Modern LFP (4,000+ cycles), IP54 ruggedness, and fast charging are the praise; small capacity and high price are the caveats. [Yeti 300 · 3 entries]
- A1
“A 960Wh LiFePO4 unit with a 500W inverter (800W X-Boost) weighing only 22 lbs — a focused, minimalist design with fewer ports and features.”
thesolarlab.com / batteryskills.com — DELTA 3 1000 Air review · 2026 · [mixed]
- A2
“Built as a power-protection device with a 10ms UPS switchover to keep a computer, monitor, and router running through outages.”
backuppowerhub.com — DELTA 3 1000 Air review · 2026 · [positive]
- A3
“With only 500W continuous output, it won't run a space heater or hair dryer — it's built for low-to-moderate draw devices.”
backuppowerhub.com / matanich.com — DELTA 3 1000 Air review · 2026 · [mixed]
- A4
“EcoFlow no longer sells the DELTA 3 1000 Air; the closest successor is the standard DELTA 3 (1,024Wh LFP, 1,800W output, ~$549).”
backuppowerhub.com — DELTA 3 line · 2026 · [mixed]
- B1
“A 297Wh LiFePO4 pack behind a 350W pure sine inverter (600W surge), rated 4,000 cycles — Goal Zero backs it with a long service life rather than raw output.”
goalzero.com / batteryskills.com — Yeti 300 review · 2026 · [positive]
- B2
“At 13.7 lbs, meets IP54 for dust and water resistance, with top-tier build quality — rubberized corners and a sturdy handle; recharges 0-100% in 50 minutes.”
campingsolar.us / trailandkale.com — Yeti 300 review · 2026 · [positive]
- B3
“The 297Wh capacity limits it to lighter-duty use — 4-6 hours on a laptop or 20-30 phone charges — and it struggled near its 300W limit, shutting down after 2 minutes with a coffee maker.”
batteryskills.com — Yeti 300 review · 2026 · [mixed]
- B4
“A modern LFP (not NMC) rugged compact unit, though at $349.95 the price stings for the capacity.”
the-gadgeteer.com — Yeti 300 review · 2026 · [mixed]
Research compiled September 19, 2026.
Who Should Buy Which
Buy the DELTA 3 1000 Air if you…
- →You already own one. Keep it on the desk it was bought for. Rated no worse than 10ms on switchoverA2, it's still a competent little UPS for a computer, a monitor and a router, and 960Wh is far more than a night of that.
- →You've turned up retailer stock and want to know what you're taking on. It's the larger battery here by a wide margin and its specs are still true, but EcoFlow is finished with it: two years of cover, no parts or service offered out of warranty, and nothing new coming for it.
Buy the Yeti 300 if you…
- →Your load list is devices. A laptop, a tablet, a camera, phones. The 100W USB-C port moves that energy quickly, and 252Wh usable is a full Saturday of it.
- →You want something you can leave in a truck bed or a boat locker and forget. IP54 sealing, rubberized corners and 13.7 lbsB2, with five years of cover behind them, is the combination you're paying the premium for.
- →You top up daily from a wall or a panel. Filling 297Wh takes about an hour and a half at the full 200W solar rating, or roughly 50 minutes from the wallB2. This is a unit that likes being refilled.
- →You want one small corner of backup: a router and a laptop through a short cut, on a switchover rated no worse than 20ms. Not the house.
If neither fits
If a CPAP has to reach morning, a fridge has to stay cold, or an eight-hour outage has to be survived, close this tab. Neither unit here does those jobs. The Yeti 300 covers 15% of the blackout profile and stops short of a CPAP night, and the Air isn't for sale at all. What you want is a live station several times this size with an inverter rated for appliances, and the Air's own named successor, the DELTA 3 Classic, is where EcoFlow points.
The Bottom Line
Buy the Goal Zero Yeti 300, and buy it for what it is rather than as a replacement for the box beside it. EcoFlow has retired the DELTA 3 1000 AirA0, so a matchup that used to turn on capacity is now a question about one unit, and the answer is a narrow one.
The Yeti 300 clears one of the seven load profiles here, and both the cycle count and the warranty term say the pack won't be what limits you. What limits you is 252Wh. If that covers a Saturday of laptops and phones, this is a rugged, fast-charging, well-covered little box, and the 100W USB-C port is the single best reason to own it. If you came here because something has to run all night, the Yeti 300 comes up short of exactly that, and the DELTA 3 Classic is where EcoFlow sends you.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the EcoFlow DELTA 3 1000 Air discontinued?
Yes. It has left EcoFlow's own store and our price tracking, which is why this page shows no price and no buy button for it. Remaining retailer stock may linger for a while, so you might still turn one up. EcoFlow's designated replacement is the DELTA 3 Classic.
Will the Goal Zero Yeti 300 run a CPAP all night?
Not on our numbers. Our CPAP Overnight profile draws 320Wh and the Yeti 300 has 252Wh usable after the flat 15% conversion allowance, so it stops about a fifth of the way from the finish. A machine drawing less than our profile would get further, but we have no figure for yours. Treat it as a unit that gets you most of the way through a night rather than all of it.
Can the Yeti 300 run a coffee maker or a kettle?
Start one, probably. Hold one, no. The inverter is rated 350W continuous with 600W of surge, and a reviewer working it near the 300W line saw it shut down after about two minutes on a coffee maker. Anything with a heating element belongs on a bigger station.
Is the Goal Zero Yeti 300 worth the money for only 297Wh?
You're paying for the case, the term and the port rather than the capacity. At $350 it's expensive per watt-hour, and one reviewer said as much. What the money buys instead is IP54 sealing, 13.7 lbs, 4,000 rated cycles, five years of warranty and a 100W USB-C port. If those are the things you need, it's fair value. If you just want watt-hours, it isn't.
What replaced the EcoFlow DELTA 3 1000 Air?
The DELTA 3 Classic. That's the replacement EcoFlow's own retirement of the Air points to. We won't print its specs here because it isn't one of the two units on this page, but it does address the Air's one real limitation: a 500W inverter that wouldn't run a space heater or a hair dryer.
Where to buy
EcoFlow DELTA 3 1000 Air
No longer sold
Goal Zero Yeti 300Pick
Sold on Amazon · today’s price is on the listing
Prices may vary by retailer and are subject to change.