Head-to-head test
EcoFlow DELTA 2 vs Jackery Explorer 1500 Ultra
Same $0.16 per lifetime kilowatt-hour, less than half the sticker price — the DELTA 2 only loses if you need the Explorer's extra headroom in one sealed, quiet box.
Written by Ian SchneiderUpdated
Solar & Off-Grid Tester, Station Arena Test Desk
EcoFlow
DELTA 2
3,128Power Score · Appliance Class
$499.00 list · direct from EcoFlow
Jackery
Explorer 1500 Ultra
3,193Power Score · Appliance Class
$999.00 list · direct from Jackery
Spec deltas
The EcoFlow DELTA 2 costs $479. The Jackery Explorer 1500 Ultra costs $999. Run the ownership math and they land at the exact same $0.16 per lifetime kilowatt-hour — so the Explorer's extra $520 isn't cheaper energy, it's more energy in one box.
The DELTA 2 holds 1,024Wh to the Explorer's 1,536Wh, is rated for 3,000 cycles against 4,000, and it's the one of the two that accepts EcoFlow's add-on batteries. The Explorer is sealed at 1,536Wh for good.
Where the Explorer earns its price is quiet and headroom: 30dB against the DELTA 2's spec'd 50dB, and enough extra capacity to clear a remote workday's load where the DELTA 2 is already stretched past its usable ceiling.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
cost / lifetime kWh
Because the DELTA 2 can take an add-on battery, a buyer who starts there and adds capacity later reaches Explorer-class capacity without ever committing $999 on day one.
the DELTA 2 is $479, the Explorer 1500 Ultra is $999 — a $520 gapboth work out to $0.16 per lifetime kilowatt-hour once cycle life is factored inthe DELTA 2 supports EcoFlow add-on batteries; the Explorer is a sealed 1,536Wh unit
Why it mattersAnyone unsure how much capacity they'll eventually need should start with the DELTA 2 and grow into it, not buy the ceiling upfront.
A compressor appliance like a fridge or window AC can surge to 2-3x its rated draw on startup, so that extra headroom is exactly where it matters: the DELTA 2's 2,700W ceiling covers most of them, but the Explorer's 3,600W leaves noticeably more margin on a hot day or an aging compressor.
the DELTA 2 surges to 2,700W on an 1,800W inverterthe Explorer 1500 Ultra surges to 3,600W on the same 1,800W inverter
Why it mattersBuyers planning to run a fridge or window AC off either unit should weight this surge gap over the base Wh numbers.
EcoFlow has reportedly told reviewers a firmware fix for the fan behavior is planned, following the pattern of past models, but nothing has shipped yetA4 — so today, running anything demanding near where you sleep means listening to the DELTA 2's fans or running an extension cord out of the roomA1.
the DELTA 2 is spec'd at 50dB noise under load, the Explorer 1500 Ultra at 30dBowners report DELTA 2 fans trigger once load climbs past a moderate threshold and hold near that same 50dB levelA1A2
Why it mattersCPAP users and light sleepers should treat the Explorer's quiet spec as the deciding factor and pay the premium for it.
The specific dimensions that decide these two units — everything else is a tie.
Growth Path
Selected because: The DELTA 2's expansion option is the strongest argument against paying $999 upfront.
solar input
The DELTA 2 accepts EcoFlow's add-on batteries; the Explorer 1500 Ultra doesn't expand at all — what you buy at $999 is the ceiling. That's the one lever that breaks the tie in the lifetime-value math.
A buyer who starts with the $479 DELTA 2 and adds a battery later only spends the difference when they actually need more capacity, instead of paying for headroom on day one that might sit unused.
Lifetime Value
Selected because: Both land at the same $0.16/kWh — the real story is upfront price and warranty-year cost.
cost / lifetime kWh
Run the ownership math and both units land at $0.16 per lifetime kilowatt-hour — the DELTA 2's 3,072 lifetime kWh against the Explorer's 6,144, scaled to their respective $479 and $999 price tags. That puts the DELTA 2's warranty-year cost at $96, against the Explorer's $200, over the same 5-year term.
Neither unit is cheaper energy — they're identically priced energy in different container sizes. The decision isn't value, it's how much capacity you want to own on day one.
What the Specs Don't Tell You
Selected because: Noise and surge-ratio gaps are the clearest technical trade-offs between them.
rated cycles
Two gaps stand out. The DELTA 2 is spec'd at 50dB under load against the Explorer's 30dB, and owner reports back that number up almost exactly, with fans holding near that level once draw climbs past a moderate thresholdA1A2. The Explorer's inverter also carries more surge headroom, 3,600W against the DELTA 2's 2,700W, on an identical 1,800W continuous rating.
Both carry a 5-year warranty, so the warranty-year cost gap is really a proxy for how much capacity you're paying to own, not how well either unit is covered.
Your Life, Your Pick
Selected because: The Explorer's extra capacity clears loads the DELTA 2 can't quite reach alone.
The Explorer clears CPAP overnight and a tailgate party with real margin to spare, and edges ahead on a full remote workday, which lands right at the DELTA 2's usable ceiling. The DELTA 2 handles CPAP and tailgate loads too — it's the workday scenario where the gap shows up.
Neither one covers a full weekend camping trip, an 8-hour blackout, or van-life daily use on its own. Those all call for a second battery on the DELTA 2 or an entirely different class of unit for the sealed Explorer.
Strengths & trade-offs
EcoFlow DELTA 2
Strengths
- +Costs $500 less
- +Lighter by 11.6 lb
Trade-offs
- –Shorter-lived battery — rated for 3,000 charge cycles vs the Explorer 1500 Ultra's 4,000, so it wears out sooner.
Jackery Explorer 1500 Ultra
Strengths
- +Larger battery capacity
- +Faster solar charging
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$500) than the DELTA 2.
- –Significantly heavier (+11.6 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
Neither unit
Neither unit can fully handle this scenario (needs 2,100Wh). You'd need a higher-capacity station or to cut back on usage.
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
An eight-hour blackout with a fridge, lights, and devices running wants around 1,645Wh, more than either unit holds alone. The DELTA 2's expansion battery is the practical fix here; the sealed Explorer would need a second unit entirely.
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
Explorer 1500 Ultra
Both are massively overpowered for CPAP — the Explorer 1500 Ultra finishes at 25% used against the DELTA 2's 37%. At a 40W load that reserve is comfort rather than necessity, so if a CPAP is the only thing you plan to run, price and portability should count for more than capacity does.
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
Explorer 1500 Ultra
A laptop-monitor-router day draws around 910Wh — just past what the DELTA 2's usable capacity comfortably covers, but well inside the Explorer's larger reserve. If daily untethered work is the use case, the Explorer's extra headroom is the safer buy.
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
Explorer 1500 Ultra
Both handle game day, and the Explorer 1500 Ultra does it with more in reserve — 51% used against 77%. Tailgating is a light load, so that headroom counts for less here than the 12 lbs you'll actually carry across the parking lot.
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 can fully handle this scenario (needs 4,685Wh). You'd need a higher-capacity station or to cut back on usage.
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 six 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: Explorer 1500 Ultra runs 6.4h vs 4.2h.
$999 list · direct from Jackery
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 0–87hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–17.4hHigh-Draw Appliances
These reveal the real limitsscale 0–1.3h¹ 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
July 14, 2026
Verdict: the DELTA 2
The DELTA 2 is $479 to the Explorer 1500 Ultra's $999, and both work out to the identical $0.16 per lifetime kilowatt-hour — the extra $520 isn't buying cheaper energy, it's buying 512Wh more of it in a single sealed box. The DELTA 2 also accepts EcoFlow's add-on batteries, so a buyer who's unsure how much capacity they'll eventually need can start cheap and grow into it. The Explorer answers back with real advantages: 30dB against the DELTA 2's spec'd 50dB, more surge headroom (3,600W vs 2,700W), and enough capacity to clear a full remote workday where the DELTA 2 falls just short. Take the DELTA 2 for value and growth room; pay the premium for the Explorer if quiet, surge headroom, or single-box capacity matter more to you than price.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 14, 2026. The links below open EcoFlow's and Jackery's current prices.
$499.00 list · direct from EcoFlow
or check the Explorer 1500 Ultra price$999.00 list
Written by Ian Schneider, Solar & Off-Grid Tester · Station Arena Test Desk · Updated July 14, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
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 2 rates 4.0/5 (39th percentile of 24 Everyday-class units), and Explorer 1500 Ultra rates 3.7/5 (22nd percentile of 24 Everyday-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.
Fan Noise: Spec Matches Reality
The DELTA 2's 50dB rating isn't a worst-case number — real-world testing shows the fans holding right there once load climbs past a light trickle charge, and a firmware fix has reportedly been in the works without a ship date yet. The Explorer's 30dB spec doesn't have a matching complaint on record yet, though it's also the newer unit with less time to accumulate one.
One Unit Grows, One Doesn't
The DELTA 2 accepts EcoFlow's add-on batteries, so a buyer can start small and grow capacity later without replacing the base unit. The Explorer 1500 Ultra is sealed — 1,536Wh is the ceiling, full stop, so make sure that number covers your future needs before you buy it.
Surge Headroom Favors the Explorer
Both units run 1,800W continuous, but the Explorer surges to 3,600W against the DELTA 2's 2,700W — nearly a third more headroom before a hard startup spike, like a fridge or window AC compressor kicking on, trips the inverter.
Warranty Value Comparison
The DELTA 2 gives you 10 years of warranty per $1,000 spent, vs the Explorer 1500 Ultra's 5 years. That's 2× more coverage per dollar. An underrated factor if you're keeping this unit for years.
Battery Lifespan in Real Years
The Explorer 1500 Ultra 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. After hitting the cycle limit, the battery doesn't die. It drops to ~80% original capacity, which is still very usable.
Full record above — the Test Desk pick is the DELTA 2.
Check DELTA 2 price →or check the Explorer 1500 Ultra 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
Both units have similar long-term ownership costs ($0.16/kWh vs $0.16/kWh). The price difference is what you see on the sticker — neither is a hidden bargain or rip-off.
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. Supports up to 180kWh modular expansion with DELTA Pro Ultra X.
Worth knowing
The Oct 2025 DELTA Max 2000 recall (overheating/fire risk, 6 incidents) is worth noting. Also tested subscription paywalls for advanced app features in early 2025 before community backlash paused the plan. No parts or service offered out of warranty.
Jackery
Ecosystem
12-15+ models across Explorer (portable) and HomePower (home backup) series, plus SolarSaga panel ecosystem and innovative form factors
Support
US-based support but widely criticized. Reddit reports describe slow/dismissive responses, scripted AI agents, strict receipt requirements for warranty claims, and refurbished replacements for clearly defective units. Strongly recommended: buy from Costco or Amazon for return protection.
Community
Smallest community of the major brands — Reddit r/Jackery has ~2,000 members. YouTube presence is solid due to brand recognition.
App experience
Rated 2.3-3.3/5 iOS and Android — the weakest app experience of the major brands. Multiple confusing apps (Jackery app vs Jackery Home) and mandatory login even offline.
Unique strength
Highest brand recognition and widest retail distribution (Costco, Home Depot, Best Buy, Amazon). The "Toyota" of power stations — dependable, proven, wide availability. Innovative form factors like the Solar Gazebo and Solar Mars Bot.
Worth knowing
A couple of older models still ship NMC chemistry with a shorter rated lifespan, so check the cycle rating on the specific unit — though most of the current line has moved to LFP. Generally perceived as overpriced for the specs offered compared to newer competitors. App experience is significantly behind rivals.
Analyst note
EcoFlow and Jackery are close competitors. Both have established support channels and growing ecosystems. Compare their specific warranty terms and community size for your peace of mind.
Growth path
DELTA 2
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 500W of solar. Suitable for a 1-2 panel setup.
Generous port selection supports complex multi-device setups.
Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.
Explorer 1500 Ultra
FIXED CAPACITYFixed at 1,536Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 800W of solar. Suitable for a 1-2 panel setup.
Limited ports. You'll likely need a power strip or splitter.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Don't read the DELTA 2's expandability as a straight win here: it starts at 1,024Wh, below the Explorer 1500 Ultra's 1,536Wh, so a first expansion battery largely buys back capacity the Explorer 1500 Ultra already includes. It only pulls ahead if you'd grow past 1,536Wh — short of that, the Explorer 1500 Ultra'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 2
Real-world testing through outages, camping trips, and daily home-office use gives the DELTA 2 credit for fast charging, reliable LiFePO4 chemistry, and its expansion pathA3. The recurring complaint is noise: fans trigger once draw climbs past a moderate threshold and hold at a volume matching its rated 50dB spec, loud enough that reviewers flag it as a real issue for anyone running medical equipment nearbyA1.
Charging at higher wattages has been compared to running a gaming laptop under load, though the charge speed can be throttled down in the app to quiet itA2. EcoFlow has reportedly told reviewers a firmware fix for the fan behavior is planned, following the pattern of past models — worth watching for, not yet deliveredA4.
“When charging at 1200W the fans sound like a gaming laptop, though you can lower the charging speed in the app to silence it.”
Sources
portablepowerlab.com
Jackery Explorer 1500 Ultra
The Explorer 1500 Ultra recharges from empty off a wall outlet in about 1.5 hours through Jackery's ChargeShield 2.0 circuitry, backed by a 4,000-cycle LFP cell and the full 5-year warrantyB3. It ships with a fully sealed titanium-alloy cooling structure and a true IP65 rating, resistant to dust, low-pressure water jets, and heavy rainB1.
This is a CES-2026 launch, so the record so far is early review coverage rather than a mature owner history — reviewers highlight the fast recharge, the cycle count, and the IP65 rating as its three defining strengths, though there's no long-run fan-noise or reliability track record to weigh yetB4.
“Built around a 1,536Wh LFP battery with a true IP65 dustproof and water-resistant rating — unique in its price bracket — and a fully sealed titanium-alloy multi-layer cooling structure; totally protected against dust, and resistant to low-pressure water jets, heavy rain, and splashes.”
Sources
backuppowerhub.com · gearbrain.com · protoolreviews.com · jackery.com · thesolarlab.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
- Fan noise under moderate-to-high load is the dominant, repeatedly-cited complaint; the fan spins up above ~120W. [DELTA 2 · 3 entries]
- IP65 ruggedness (unique at its price), fast recharge, and the 4,000-cycle LFP battery are the standout praise; it is a newer CES-2026 launch so long-term owner data is thin. [Explorer 1500 Ultra · 3 entries]
- A1
“Fans trigger at anything above 120 watts; at maximum load (1,500–1,800W) they run continuously at ~48–55 dB. Powering medical equipment above 120W in a bedroom means listening to the fans or running an extension cable out of the room.”
portablepowerlab.com — EcoFlow Delta 2 Review: 6 Months of Real Use; PCWorld — EcoFlow Delta 2 review · 2026 · [negative]
- A2
“When charging at 1200W the fans sound like a gaming laptop, though you can lower the charging speed in the app to silence it.”
PCWorld — EcoFlow Delta 2 power station review · 2026 · [mixed]
- A3
“After 18 months of real-world testing through multiple power outages, camping trips, and daily home-office use, the unit earned recognition for fast charging, reliable LiFePO4 battery chemistry, and expandability.”
portablepowerlab.com — EcoFlow Delta 2 Review: 6 Months of Real Use · 2026 · [positive]
- A4
“EcoFlow officials indicated they plan to address the fan noise in an upcoming firmware update, as they have for other models after release.”
portablepowerlab.com — EcoFlow Delta 2 Review · 2026 (dated claim — may be partially addressed) · [mixed]
- B1
“Built around a 1,536Wh LFP battery with a true IP65 dustproof and water-resistant rating — unique in its price bracket — and a fully sealed titanium-alloy multi-layer cooling structure; totally protected against dust, and resistant to low-pressure water jets, heavy rain, and splashes.”
backuppowerhub.com / gearbrain.com — Explorer 1500 Ultra review · 2026 · [positive]
- B3
“1.5-hour AC recharge via ChargeShield 2.0, with a 4,000-cycle LFP battery and a 5-year warranty.”
backuppowerhub.com / thesolarlab.com — Explorer 1500 Ultra review · 2026 · [positive]
- B4
“Reviewers score it 9.1/10; its three defining strengths are the IP65 certification, a 1.5-hour AC recharge, and the 4,000-cycle LFP battery with a 5-year warranty.”
thesolarlab.com / backuppowerhub.com — Explorer 1500 Ultra review · 2026 · [positive]
Research compiled July 14, 2026.
Who Should Buy Which
Buy the DELTA 2 if you…
- →You want to start cheap and add capacity later — the DELTA 2's expansion path gets you toward Explorer-class capacity without committing $999 upfront.
- →You want the lower warranty-year cost ($96 vs $200) and don't mind fan noise once draw climbs past a moderate thresholdA1.
- →You need more surge headroom than a smaller unit but don't need the Explorer's full 1,536Wh in one box.
Buy the Explorer 1500 Ultra if you…
If neither fits
Both fall short of a full weekend camping trip (needs about 2,100Wh) or an 8-hour blackout (about 1,645Wh) even before charging losses — the DELTA 2 needs a second battery to get there, and the sealed Explorer can't get there at all. Either scenario calls for a 2kWh-plus station instead.
The Bottom Line
The DELTA 2 and Explorer 1500 Ultra deliver energy at the identical $0.16 per lifetime kilowatt-hour — the real difference is $520 upfront and whether you'd rather grow into capacity or buy it all on day one. The DELTA 2's expansion path makes it the better starting point for most budgets.
Pay the premium for the Explorer only if you need 1,536Wh in a single sealed, IP65-rated box today, or if the DELTA 2's confirmed fan noiseA1A2A4 is a dealbreaker for where you'll run it. Otherwise, start with the DELTA 2 and add capacity if you actually need it.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
EcoFlow DELTA 2 or Jackery Explorer 1500 Ultra — which should I buy?
Buy the DELTA 2 if budget and growth room matter most: it's $520 cheaper, lands at the same $0.16 per lifetime kilowatt-hour, and can take an add-on battery later. Buy the Explorer if you want 1,536Wh in one sealed, quiet box today and don't plan on adding capacity — it's rated 30dB against the DELTA 2's 50dB and clears a full remote workday the DELTA 2 can't quite cover.
Is the EcoFlow DELTA 2's fan noise really a problem?
Yes, per multiple reviewers — fans trigger once draw climbs past a moderate threshold and hold near the unit's own 50dB spec. EcoFlow has reportedly told reviewers a firmware fix is planned, but nothing has shipped yet.
Can the Jackery Explorer 1500 Ultra expand its capacity?
No — it's a sealed 1,536Wh unit with no add-on battery option. The DELTA 2 does support EcoFlow's expansion batteries, which is the main reason to start there if your power needs might grow.
Which one handles a CPAP all night?
Both do. A CPAP's overnight draw is roughly 320Wh, which uses about 37% of the DELTA 2's usable capacity and about 25% of the Explorer's — either leaves plenty in reserve, so let noise and price decide instead.
Where to buy
EcoFlow DELTA 2Pick
$499.00
$499.00 list · direct from EcoFlow
Jackery Explorer 1500 Ultra
$999.00
$999.00 list · direct from Jackery
Prices may vary by retailer and are subject to change.