Head-to-head test
EcoFlow DELTA 2 vs Jackery Explorer 1000 v2
The DELTA 2 has left EcoFlow's range, so this comes down to one question about the Explorer 1000 v2: does everything you run fit under its 1,500W continuous ceiling? If it does, the lighter, longer-rated Jackery is the buy; if it doesn't, the answer is EcoFlow's DELTA 3, not leftover DELTA 2 stock.
Full profiles: EcoFlow DELTA 2 → · Jackery Explorer 1000 v2 →
Written by Ian SchneiderUpdated
Solar & Off-Grid Tester, Station Arena Test Desk
Spec deltas
EcoFlow no longer sells the DELTA 2. Its store page forwards to the DELTA 3, so anyone shopping today is really choosing between the Jackery Explorer 1000 v2 and EcoFlow's newer box, and the DELTA 2 stays on this page as the reference point it used to be.
As a reference point, it explains the Jackery well. The two hold almost the same energy, 1,024Wh against 1,070Wh, and the Explorer does it 3.2 lbs lighter with a battery rated for 4,000 cycles to the DELTA 2's 3,000. Run either one daily and that's about 11 years of rated life against 8.2. The things the DELTA 2 did better were brawn: 1,800W of continuous output to the Explorer's 1,500W, six AC outlets to three, and an expansion port.
So the Explorer wins by default and by merit at once, which is a tidy outcome for a page that lost a contestant. The only reader who should hesitate is the one whose must-run list crosses 1,500 watts, and that reader should be looking at the DELTA 3, not at old stock.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
rated cycles
That gap was the Explorer's best argument when both were on sale, and the retirement doesn't weaken it; it removes the only rival it was being weighed against here. The reviewers' read of the Explorer as a long-lived LFP unitB2 matches the spec, so the one live unit on the page is also the one built to last longer.
DELTA 2: 1,024Wh, 3,000 cycles, 3,072 kWh of rated lifetime energyExplorer 1000 v2: 1,070Wh, 4,000 cycles, 4,280 kWh of rated lifetime energythe DELTA 2 is discontinued; EcoFlow points buyers to the DELTA 3
Why it mattersAnyone buying for years of daily or weekly use should take the Explorer without looking for leftover DELTA 2 stock.
continuous output
Motors that spike at startup and then settle, like a fridge compressor or a pump, play to the Explorer's 3,000W ceiling. Resistive loads that pull steady wattage, like a space heater on high, play to sustained output, and that's the one column where the Explorer is the smaller number. With the DELTA 2 gone, the 300W gap is no longer a reason to buy a DELTA 2; it's the reason to check the DELTA 3's sheet.
DELTA 2 sustains 1,800W and surges to 2,700WExplorer 1000 v2 sustains 1,500W and surges to 3,000WExplorer reviewers name 1,500W continuous as its main limitB0B4
Why it mattersIf your heaviest load runs steadily above 1,500W, skip the Explorer and compare the DELTA 3; otherwise the output question is settled in the Jackery's favour.
The Explorer wins the row, but it wins it on the edge, and a sealed pack means there is no add-on battery to buy when the edge isn't enough. That's the Explorer's honest catch in practical form: size it for the job you have, because the box you buy is the ceiling.
Remote Workday needs 910Wh; the Explorer has 910Wh usable, the DELTA 2 870Whthe DELTA 2 falls 40Wh short of that daythe Explorer is sealed at 1,070Wh with no expansion
Why it mattersRemote workers who already know their day runs past 910Wh should budget for a recharge midday or look at a bigger station rather than counting on the Explorer to grow.
The specific dimensions that decide these two units — everything else is a tie.
What the Specs Don't Tell You
Selected because: Output, expansion and noise ratings are where the two sheets disagree, and the DELTA 2's retirement changes how each one reads.
rated cycles
The surge card flatters the Explorer and the output column flatters the DELTA 2, and both are telling the truth. The Explorer clears a motor's startup kick with 300W more headroom; the DELTA 2 held 300W more once the load settled. Which one matters depends on whether your heaviest appliance spikes or sustains, and that's worth knowing before you buy either the Explorer or the DELTA 3.
The noise card needs a lighter touch than it gets. The Explorer is published at 30dB and the DELTA 2 at 50dB, but the makers don't measure the same way, so those two numbers aren't a gap you can count on hearing. What the field record does say is that the DELTA 2's fan spun up above about 120WA1, while Explorer reviewers describe quiet operationB4. Treat that as a lean, not a verdict.
Growth Path
Selected because: The DELTA 2 took expansion batteries and the Explorer is sealed at 1,070Wh, but growth only counts on a unit you can still buy.
solar input
Expandability was the DELTA 2's best long-term argument, and it went out of the catalogue with the unit. A growth path only counts if you can still buy the thing at the start of it, so for a new purchase this section has one live candidate, and that candidate is sealed.
That's the Explorer's real weakness, stated once: 1,070Wh is the ceiling, forever. For a camping or desk-day unit that rarely bites. If you already suspect you'll want twice the runtime in a year, don't buy a box you'll outgrow; look at the DELTA 3 or a larger station now.
Lifetime Value
Selected because: The Explorer's 4,000-cycle rating against 3,000 is its strongest spec-sheet advantage.
Four thousand rated cycles against three thousand is the difference between a battery you replace and one you forget about. At one full cycle a day the Explorer's rating runs about 11 years against the DELTA 2's 8.2, and reviewers tie that directly to its move to LFP chemistryB2.
None of this depends on what the DELTA 2 used to cost, because it no longer costs anything at EcoFlow. It simply means the unit you can buy is also the one rated to outlast the one you can't.
Portability & Form Factor
Selected because: The Explorer carries slightly more energy in a body 3.2 lbs lighter.
weight
The Explorer is 23.8 lbs, the DELTA 2 was 27, and the lighter one holds 46Wh more. Three pounds isn't a different category of lift, but it's the difference between one hand on the handle and two, and reviewers single out the Explorer's weight as light for its classB1.
The DELTA 2's counter was outlets: six AC sockets and four USB-A ports against the Explorer's three and one. If you're plugging in a crowd at a campsite, a power strip closes that gap for a few dollars. Nothing closes a weight gap.
Strengths & trade-offs
EcoFlow DELTA 2
Strengths
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Shorter-lived battery — rated for 3,000 charge cycles vs the Explorer 1000 v2's 4,000, so it wears out sooner.
Jackery Explorer 1000 v2
Strengths
- +Lighter by 3.2 lb
- +Larger battery capacity
- +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 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 covers this scenario's 2,100Wh: the DELTA 2 comes up 1,230Wh short (about 41% covered), the Explorer 1000 v2 1,191Wh (43%). Treat this as partial cover — enough for the essentials in it, not the whole list.
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 2 comes up 775Wh short (about 53% covered), the Explorer 1000 v2 736Wh (55%). Either gets you most of the way, so this is a scenario you plan around rather than one you should rule them out for.
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
Both cover a 320Wh night with room to spare, 590Wh left on the Explorer and 550Wh on the DELTA 2, so capacity doesn't separate them. The Explorer takes the row, and for a new purchase the deciding fact is simple: it's the one you can still buy. The published noise ratings come from makers who measure differently, so don't count on hearing the difference at a 40W draw.
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 1000 v2
A 910Wh desk day is exactly what the Explorer has usable, so it finishes the day with nothing in reserve. The DELTA 2 runs 40Wh short and would need one small load trimmed to get there. The Explorer wins, but plan a top-up if your day ever runs long.
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
Either unit
Both run the full game-day load, with 240Wh left on the Explorer and 200Wh on the DELTA 2, and both start the 400W peak easily. Call it a dead heat on the field. The tiebreaks are that the Explorer is the lighter one to carry from the car and the only one still on sale.
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 2 comes up 3,815Wh short (about 19% covered), the Explorer 1000 v2 3,776Wh (19%). 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
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
Dead heat — both run this 205W load for roughly 4.2h. Pick on price, weight, or ports.
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 0–60.6hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–12.1hHigh-Draw Appliances
These reveal the real limitsscale 0–0.9h¹ 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
October 5, 2026
Verdict: the Jackery Explorer 1000 v2
Buy the Jackery Explorer 1000 v2. EcoFlow has discontinued the DELTA 2 and points buyers to the DELTA 3, so only one unit on this page can be recommended, and it happens to be the one the spec sheet already favoured on the everyday axes: 23.8 lbs against 27, a 4,000-cycle battery against 3,000, and 1,070Wh against 1,024Wh. The honest catch is output. The Explorer sustains 1,500W where the DELTA 2 held 1,800W, and it's sealed where the DELTA 2 took expansion batteries. If either of those is a requirement, the Explorer is the wrong box and the DELTA 3 is the comparison to make next. If neither is, stop here and buy the Jackery.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of October 5, 2026. The links below open Jackery's current price.
$589.00 · direct from Jackery
Last checked 28 days ago. Prices move — check before you buy.
Written by Ian Schneider, Solar & Off-Grid Tester · Station Arena Test Desk · Updated October 5, 2026
Black Friday · 26 days out
Price to beat:Explorer 1000 v2 $489
The lowest we have recorded. A Black Friday price above it is a sale this unit has already had.
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): RV Living, Food Truck.
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 4.1/5 (50th percentile of 27 Everyday-class units), and Explorer 1000 v2 rates 3.7/5 (23rd percentile of 27 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.
Two noise ratings that don't measure the same thing
The DELTA 2 is published at 50dB and the Explorer at 30dB, but each maker rates its own way, so the 20dB difference on paper isn't a measured gap. Treat the numbers as a prompt to look for hands-on reports before putting either unit beside a bed, not as proof of how either sounds at a light load.
The Explorer is sealed, and that's the ceiling
This card cuts against our pick. The Explorer 1000 v2 has no expansion port, so 1,070Wh is all it will ever hold. The DELTA 2 took add-on batteries, but it's discontinued, so that option belongs to existing owners rather than new buyers. If you expect your needs to grow, the honest move is to buy bigger now or look at EcoFlow's DELTA 3.
The Explorer starts harder; the DELTA 2 ran longer at the top
The Explorer surges to 3,000W against the DELTA 2's 2,700W, a 2x ratio to its continuous rating against 1.5x, which suits motors with a hard startup kick. The trade is that it sustains 1,500W where the DELTA 2 held 1,800W. Check whether your heaviest appliance spikes or pulls steadily before deciding the surge figure settles anything.
Five years on both records, with one condition
Both units carry a 5-year warranty on our records, so coverage isn't a tiebreaker. The difference is in the terms: the Explorer's five years is the maximum, reached by registering it with Jackery, so register it the day it arrives. The DELTA 2's term only matters now to people who already own one, since EcoFlow no longer sells it.
Battery Lifespan in Real Years
The Explorer 1000 v2 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% of original capacity, which is still very usable.
Full record above — the Test Desk pick is the Explorer 1000 v2.
Check Explorer 1000 v2 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 2 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 Explorer 1000 v2 works out at $0.13/kWh over its rated life. If you already own the DELTA 2, the hardware comparison still holds: over its rated life the DELTA 2 delivers about 3,072 kWh and the Explorer 1000 v2 about 4,280 kWh.
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
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 brings the stronger software: its app rates 4.6 on iOS against Jackery's 2.3 to 3.3, and Jackery's requires a login even offline. That matters less on this page than usual, because the EcoFlow unit here is retired and the DELTA 3 is the brand's live answer. Support draws criticism at both makers, so buy from a retailer with an easy return window whichever brand you land on.
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 1000 v2
FIXED CAPACITYFixed at 1,070Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 400W of solar. Suitable for a 1-2 panel setup.
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 2 is no longer sold (EcoFlow points owners to the DELTA 3). That leaves the Explorer 1000 v2: it is sealed at 1,070Wh, so buy the size that covers you now. The DELTA 2's expandability still matters if you already own one, but it isn't a reason to pick it over the Explorer 1000 v2.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 2
The DELTA 2 built a long, solid record before it was retired. One long-term reviewer ran it for 18 months through outages, camping trips and daily home-office use and came away crediting its fast charging, its LFP battery and its expandabilityA3. Our research found that consensus consistent across sourcesA0.
The recurring gripe was the fan. Reviewers report it kicking in above roughly 120W and running at about 48 to 55 dB near full loadA1, sounding like a gaming laptop when charging fast, though slowing the charge rate in the app quiets itA2. EcoFlow said it planned a firmware fixA4. None of this is a reason to replace one you own; it's simply what owning one was like.
“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 1000 v2
Reviewers line up behind the Explorer 1000 v2 as a well-balanced mid-size unit: light, quiet, and built on a 4,000-cycle LFP batteryB4B2. At 23.8 lbs it's described as easy to lift for a 1kWh-class stationB1, and testers consistently hit a full charge from empty in about 60 to 65 minutes using the app's emergency charge modeB3.
The limit reviewers keep naming is output: 1,500W continuous, with a 3,000W surgeB4. Our research coverage flags the same thing as the main constraint on an otherwise well-reviewed unitB0.
“At just 23.8 lbs it's easy to lift and carry — light for a 1kWh-class unit.”
Sources
backuppowerhub.com · outdoortechlab.com · rvoutfitting.com · thesolarlab.com · amusthavething.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]
- Light weight, fast ~1-hour charging, quiet operation, and a 4,000-cycle LFP battery make it a well-balanced value favorite; the main limit is 1,500W output. [Explorer 1000 v2 · 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
“At just 23.8 lbs it's easy to lift and carry — light for a 1kWh-class unit.”
backuppowerhub.com / outdoortechlab.com — Explorer 1000 v2 review · 2026 · [positive]
- B2
“Moves to LiFePO4 chemistry rated for 4,000 charge cycles before capacity drops, dramatically increasing lifespan over the original lithium-ion model.”
backuppowerhub.com / rvoutfitting.com — Explorer 1000 v2 review · 2026 · [positive]
- B3
“Fast AC charging — consistently reached 100% in about 60-65 minutes from empty via the app's emergency charge mode, a big improvement over the original's long wait.”
thesolarlab.com / outdoortechlab.com — Explorer 1000 v2 review · 2026 · [positive]
- B4
“One of the strongest mid-size portable power stations of 2026, striking an excellent balance of portability, fast charging, quiet operation, and long-term battery reliability; pushes 1,500W continuous with a 3,000W surge.”
backuppowerhub.com / amusthavething.com — Explorer 1000 v2 review · 2026 · [positive]
Research compiled October 5, 2026.
What Owners Actually Report
Drawn from 173 comments on independent review channels — not from retailer reviews, which skew to the first week of ownership. Each line is our summary of one commenter's claim, linked to the original. We record what they said, including where it contradicts the spec sheet.
EcoFlow DELTA 2
224 claims from 155 comments · 178 from owners · 60 with figures
- Runtime
- 32 · 13% negative
- Price & value
- 38 · 4% negative
- Charging
- 17 · 23% negative
- Durability
- 22 · 67% negative
- Warranty & support
- 22 · 59% negative
What owners complain about
Ignores solar unless he unplugs it from the wall, so he switched to the AC180.
Solar inputowner63 agreedsource →
His Delta 2 went bad three months after purchase and EcoFlow agreed it was defective.
Durabilityownerafter 3 months236 agreedsource →
Past 30 days the five-year warranty only gets a refurbished unit covered for 30 days.
Warranty & supportowner236 agreedsource →
What owners praise
DELTA 2 plus extra battery and 600W solar cost ~$1200 and paid for itself in under 2 years in California.
Price & valuemeasuredowner736 agreedsource →
Batteries still hold 98%+ capacity, ahead of the 80%-at-10-years warranty curve.
Durabilitymeasuredowner736 agreedsource →
Gets 180-190W into it from a 100Ah LiFePO4 via XT60i cable, no converter needed.
Chargingmeasuredowner106 agreedsource →
Jackery Explorer 1000 v2
26 claims from 18 comments · 22 from owners · 9 with figures
- Price & value
- 6 · 3% negative
- Other
- 3 · 37% negative
- Solar input
- 3 · 49% negative
- Charging
- 2 · 100% negative
- Warranty & support
- 3 · 63% negative
What owners complain about
Replacement charged at 900W out of the box but now maxes at 345W, like the failed one.
Chargingmeasuredowner5 agreedsource →
Suspects voltage: the fridge runs fine on a 14.4V supply but the Jackery puts out 12V.
Othermeasuredowner2 agreedsource →
Only dig is that max solar input tops out at 400 watts.
Solar inputmeasuredowner2 agreedsource →
What owners praise
Bought his Jackery 1000 v2 for $325 last Black Friday.
Price & valuemeasuredowner10 agreedsource →
Pairing his Explorer 1000 v2 with two 200W Harbor Freight panels has been a huge success.
Solar inputowner132 agreedsource →
Loves it more than anything he bought from Goal Zero; runs his fridge/freezer daily.
Otherowner26 agreedsource →
Claims are weighted by how specific they are, whether the commenter owns the unit, and how many readers agreed. Comments that mention a product under a rival's review count for more, because the commenter had no reason to be there. This is what buyers report, not our test results — for measurements we ran ourselves, see the methodology.
Who Should Buy Which
Buy the DELTA 2 if you…
- →You already own a DELTA 2. Its 1,800W inverter and 1,024Wh are what they always were, and nothing on this page is a reason to replace a working unit.
- →You came here for the DELTA 2's 1,800W output or its expansion port. EcoFlow's replacement is the DELTA 3; compare that against the Explorer rather than hunting for old stock.
Buy the Explorer 1000 v2 if you…
- →You want a 1kWh station for camping, tailgates or a CPAP night, and nothing on your list pulls more than 1,500W steadily.
- →You'll use it often and want it to last: its battery is rated for 4,000 cycles, about 11 years at one cycle a day, and reviewers credit the LFP chemistry for itB2.
- →You carry it to the car and back, and 23.8 lbs is a one-handed lift reviewers call light for the classB1.
- →You need a fast top-up before a storm, and testers report a full charge in about an hour on the emergency modeB3.
If neither fits
Close this tab if you're planning for a full 8-hour blackout with a fridge, or living out of a van: those days need 1,645Wh and 4,685Wh, and both of these fall hundreds to thousands of watt-hours short. Look at a station with roughly double this capacity or more, or a home-backup system that takes extra batteries.
The Bottom Line
The DELTA 2 is out of EcoFlow's range, and the Explorer 1000 v2 would have been the pick for most people anyway: slightly more energy, 3.2 lbs less to carry, and 4,000 rated cycles to 3,000, which reviewers put down to its LFP packB2. The one thing it gives up is sustained output, 1,500W where the DELTA 2 managed 1,800W.
So check your heaviest steady load. If it sits under 1,500 watts, buy the Explorer and stop shopping. If it doesn't, your next tab is the DELTA 3.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the EcoFlow DELTA 2 discontinued?
Yes. EcoFlow no longer sells the DELTA 2, and its store page forwards to the DELTA 3, which EcoFlow positions as the replacement. If you were choosing between the DELTA 2 and the Jackery Explorer 1000 v2, the live comparison is now the Explorer against the DELTA 3.
EcoFlow DELTA 2 vs Jackery Explorer 1000 v2: which should I buy?
The Explorer 1000 v2, since it's the one still on sale and it also leads on the specs that matter day to day. It's 23.8 lbs against 27, holds 1,070Wh against 1,024Wh, and is rated for 4,000 cycles against 3,000. The exception is anyone who needs more than 1,500W continuous or wants to add batteries later; that buyer should look at the DELTA 3.
Can the Jackery Explorer 1000 v2 run a 1,500W space heater?
Only right at its limit. The Explorer sustains 1,500W, so a heater rated at exactly that leaves no headroom, and anything drawing more will trip it. The DELTA 2 sustained 1,800W, which is why steady high-draw loads were its strongest case; a buyer with that need should check the DELTA 3 instead.
Which is quieter next to a CPAP?
Probably the Explorer, but not by the margin the spec sheets suggest. The published 30dB and 50dB come from makers who measure differently, so they aren't comparable. Reviewers did report the DELTA 2's fan spinning up above about 120W, while the Explorer is described as quiet, and a CPAP draws around 40W, so either should be calm through the night.
How long will the Jackery Explorer 1000 v2 battery last?
It's rated for 4,000 cycles, which works out to about 11 years at one full cycle a day, against 8.2 years for the DELTA 2's 3,000-cycle rating. Reviewers attribute the long rating to its LFP chemistry. Past the rated count the pack keeps working at reduced capacity rather than dying outright.
Brand matchup
EcoFlow vs Jackery: measured across every matchup →Where to buy
EcoFlow DELTA 2
No longer sold
Jackery Explorer 1000 v2Pick
$589.00
$589.00 · direct from Jackery
Last checked 28 days ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.