Head-to-head test
EcoFlow DELTA 3800 Gen4 vs Jackery Explorer 2000 v2Only One of These Can Grow. Do You Need It To?
The Jackery is a finished box and the DELTA 4 (3800) is the first battery of a bigger system. I'd buy the EcoFlow if this is the start of home backup, and the Jackery if it's a box for the car and one night of outage.
Black Friday · 23 days out
Price to beat:Explorer 2000 v2 $799
The lowest we have recorded. A Black Friday price above it is a sale this unit has already had.
Full profiles: EcoFlow DELTA 3800 Gen4 → · Jackery Explorer 2000 v2 →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
Gunner’s take
Whole-Home Backup Tester
Only one of these can grow, and it's also the one that starts bigger.
The DELTA 4 (3800) holds 3,763 Wh and takes up to two extra batteries through EcoFlow's expansion adapterA6. The Explorer 2000 v2 is sealed at 2,042 Wh.
That makes this less a step up than a change of plan.
A box the Jackery's size is something you buy, use and eventually replace. The DELTA 4 (3800) is something you build on: EcoFlow quotes 4 to 12 kWh with extra batteriesA6, and its two solar inputs take 2,000 W against the Jackery's 400 W.
The Jackery's answer is that it's already done.
It weighs 39.5 lb to the DELTA 4's 67.5 lb, costs $1,300 less, and is on sale now. EcoFlow lists the DELTA 4 (3800) at $2,199 and ships it in late NovemberA10.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
EcoFlow sells the DELTA 4 (3800) in a kit with a DELTA 3 Max Plus battery, 6 kWh in allA10, which carries it past the 4,685 Wh day. The Jackery's only fix is a second station, with a second inverter and a second set of outlets you've already paid for once.
DELTA 4 (3800): up to two extra batteries, the DELTA Pro 3 battery or the DELTA 3 Max Plus batteryA6Explorer 2000 v2: sealed at 2,042 WhVan Life Daily needs 4,685 Wh: the DELTA 4 (3800) is 1,486 Wh short on its own battery, the Jackery 2,949 Wh short
Why it mattersIf your needs might climb past one box, the DELTA 4 (3800) is the one you won't have to sell.
solar input
With enough panels, the DELTA 4 (3800) refills a battery nearly twice the Jackery's size in less sun than the Jackery needs for its own. In a multi-day outage that's the gap between a box that's full by lunch and one still charging at dinner. Two inputs also let a roof array and a folding panel each run on their own input.
DELTA 4 (3800): two solar inputs, 1,000 W each at 11 to 60 VA5Explorer 2000 v2: 400 W of solar input3,763 Wh against 2,042 Wh
Why it mattersIf the outage plan runs on solar, the DELTA 4 (3800) is the one that keeps up.
weight
A tailgate, a workday, a CPAP night: the Jackery handles all of them. Carrying 67.5 lb to use about a fifth of it is a poor trade. The DELTA 4 (3800) earns its weight where it sits still, beside a fridge or a transfer switch.
DELTA 4 (3800): 67.5 lb, a handle at each endA7Explorer 2000 v2: 39.5 lb with a flip-up handleB1Tailgate Party needs 670 Wh: the DELTA 4 (3800) uses 21%, the Jackery 39%
Why it mattersIf the box moves every weekend, the Jackery's lighter frame beats the bigger battery.
The specific dimensions that decide these two units — everything else is a tie.
Growth Path
Selected because: Only the DELTA 4 (3800) takes extra batteries; the Explorer 2000 v2 stops at 2,042 Wh.
solar input
The DELTA 4 (3800) is a starting point, and the Jackery is a finished product. EcoFlow's adapter takes up to two extra batteries, either the DELTA Pro 3 battery or the DELTA 3 Max Plus battery, and EcoFlow quotes 4 to 12 kWh in allA6. The Jackery's 2,042 Wh is the most it will ever hold.
Growth only counts if you'll use it. If you already own one of those EcoFlow batteries, it plugs straight in, and that settles it. If you'll never add one, you're paying for a port that stays capped, and the smaller DELTA 4 gives you more battery than the Jackery without it.
Runtime: Will It Power Your Gear?
Selected because: 3,763 Wh against 2,042 Wh, and the gap shows up on the second night of an outage.
continuous output
The second night is where 3,763 Wh pays. Our 8-hour blackout asks for 1,645 Wh. The Jackery ends it with 91 Wh. The DELTA 4 (3800) ends it with 1,554 Wh, 94% of a second night.
For anything short, the gap stops mattering. A CPAP night, a remote workday, a tailgate: both cover them with room left over. What the DELTA 4 (3800) buys is the outage that won't end, and the ordinary evening never asks for it.
Portability & Form Factor
Selected because: 67.5 lb against 39.5 lb, for a box that may never need to leave the house.
weight
At 67.5 lb, this one gets placed once. It has a handle at each end, and EcoFlow sells a folding cart for it separatelyA7. The Jackery is 39.5 lb with a flip-up handle, 28 lb lighter.
I'd carry the Jackery to a campsite without thinking twice. The DELTA 4 (3800) I'd move twice in its life: into the house, then next to whatever it backs up. If yours has to go in and out of a trunk every weekend, that difference outweighs the battery.
What the Specs Don't Tell You
Selected because: The cards flag the DELTA 4 (3800)'s weight and the Jackery's fixed ceiling, and rate switchover at no worse than 10 ms against 20 ms.
rated cycles
On switchover, the DELTA 4 (3800) is quicker on paper. Switchover is the gap between the grid dropping and the battery taking the load. EcoFlow rates it at no worse than 10 ms and Jackery rates the Explorer 2000 v2 at no worse than 20 ms, so a router rides through either and a desktop PC is where it counts. EcoFlow's FAQ says it doesn't support HID, the USB link that tells a computer to shut downA8.
Its wall charging wants a circuit to itself. EcoFlow rates it at up to 1,800 W from the wall, which at 120 V is 15 A, the full rating of an ordinary 15 A circuitA4. On a circuit you share with a fridge or a space heater, you'd turn the charge rate down in the app.
In the makers’ pictures
What you’d actually be living with
Every port, labelled
What plugs in where, and how much it takes
EcoFlow DELTA 3800 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
- 12× Solar/DC in · 1,000 WInTwo inputs, each 11 to 60 V, up to 20 A, 1,000 W: 2,000 W of panels in all.
- 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.
- 3Battery portIn · OutTakes up to two of EcoFlow’s DELTA 3 Max Plus or DELTA Pro 3 extra batteries; EcoFlow quotes 4–12 kWh.
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.
Jackery Explorer 2000 v2
Front panel
- 112 V car socket · 10 AOutA 12 V car socket, printed DC 12V 10A. Jackery rates it 12 V at 10 A at most.
- 2USB-C · 30 WOutUp to 30 W (up to 20 V at 1.5 A), printed USB-C 30W.
- 3USB-C · 100 WOutUp to 100 W (up to 20 V at 5 A), printed USB-C 100W.
- 4USB-A · 18 WOutUp to 18 W, printed USB-A 18W.
- 53× 120 V outletsOutThree T-slot 120 V outlets, 18.3 A by Jackery’s specs. Together they give 2,200 W continuous and a 4,400 W surge.
The AC and solar inputs are on the right side, mapped below.
Photo: Jackery · Product image, Jackery store · numbers and labels are ours. Ratings printed on Jackery’s panel and in the tech specs on Jackery’s US store page and the Explorer 2000 v2 user manual.
Input side
- 1AC in · 15 AInThe AC charging inlet, 100 to 120 V at 15 A at most. In bypass mode, with the wall passing straight through to the outlets, Jackery limits it to 12 A.
- 22× DC8020 solar · 400 WInTwo DC 8 mm inputs, which Jackery calls DC8020 ports, each taking one 100 W or 200 W panel. 16 to 60 V at 12 A each, up to 21 A and 400 W with both; from a car (11 to 16 V), 8 A in all.
No battery port: the Explorer 2000 v2 doesn’t take extra batteries.
Photo: Jackery · Product image, via Best Buy · numbers and labels are ours. Port layout as drawn in Jackery’s Explorer 2000 v2 user manual; ratings from the tech specs on Jackery’s US store page and the manual.
Strengths & trade-offs
EcoFlow DELTA 3800 Gen4
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
- +Rated for 6,000 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$1,300) than the Explorer 2000 v2.
- –Significantly heavier (+28 lbs), making it harder to move.
Jackery Explorer 2000 v2
Strengths
- +Costs $1,300 less
- +Lighter by 28 lb
Trade-offs
- –Weaker inverter (-1,400W) limits appliance compatibility.
- –Sealed capacity — the DELTA 3800 Gen4 can add batteries to grow past 2,042Wh; this one can't.
- –Shorter-lived battery — rated for 4,000 charge cycles vs the DELTA 3800 Gen4's 6,000, so it wears out sooner.
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 3800 Gen4
The Explorer 2000 v2 doesn't finish — 1,736Wh usable against the 2,100Wh this needs leaves it 364Wh short, about 83% of the scenario covered. The DELTA 3800 Gen4 covers it with 1,099Wh 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 3800 Gen4
Both finish the night. The Jackery ends it with 91 Wh. The DELTA 4 (3800) ends with 1,554 Wh, enough for most of a second night.
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 several times over — capacity isn't the question here. The only published difference is fan noise, and it can't settle this: the Explorer 2000 v2 is rated 30dB and the DELTA 3800 Gen4 40dB, but the Explorer 2000 v2's is its maker's best case and the DELTA 3800 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 3800 Gen4
The DELTA 3800 Gen4 clears the workday at 28% used, banking 2,289Wh — late work, extra calls, or a second laptop charge without arithmetic. The Explorer 2000 v2 at 52% also finishes, with 826Wh of slack for the unplanned.
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 3800 Gen4
Both handle game day; the DELTA 3800 Gen4 keeps more in reserve (21% used vs 39%). Tailgating is a light load, though, so the number you'll feel is weight: 39.5 lbs for the Explorer 2000 v2 against 67.5 lbs for the DELTA 3800 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 the 4,685 Wh day on its own battery. The DELTA 4 (3800) takes extra batteries and can be built up to it; the Jackery can't.
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 3800 Gen4 runs 15.6h vs 8.5h.
$2,199 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 0–213.2hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–42.6hHigh-Draw Appliances
These reveal the real limitsscale 0–3.2h¹ 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 3800 Gen4, on Power Score margin
I'd buy the DELTA 4 (3800) if this is the start of home backup. It holds 3,763 Wh against 2,042 Wh, finishes our 8-hour blackout with 94% of a second night still in it, and is the only one of the two that takes extra batteries, up to twoA6. Its two solar inputs take 2,000 W against the Jackery's 400 W, which turns a refill into a morning's job instead of a day's. Over its rated life it costs $0.10 a kWh against $0.11, close enough that ownership cost isn't the reason. The Jackery costs $1,300 less, weighs 28 lb less and is on sale now, while EcoFlow ships the DELTA 4 (3800) in late NovemberA10. If you'll never add a battery or a second array and the box has to travel, the Jackery 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 and Jackery's current prices.
$2,199.00 · direct from EcoFlow
or check the Explorer 2000 v2 price$999.00 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 3800 Gen4 rates 4.1/5 (48th percentile of 22 Home Backup-class units), and Explorer 2000 v2 rates 3.7/5 (21st 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.
Placed Once, Then Left Alone
The DELTA 4 (3800) weighs 67.5 lb, 28 lb more than the Explorer 2000 v2. It has a handle at each end, so two people make short work of it and one can manage a short carry. It's a box to set beside what it backs up, not one to haul every weekend.
The Jackery Stops at 2,042 Wh
The Explorer 2000 v2 is sealed at 2,042 Wh. The DELTA 4 (3800) starts at 3,763 Wh and takes extra batteries on top. That second step only matters if you'd outgrow 3,763 Wh as well, but it's the one step the Jackery can never take.
UPS Switchover: ≤10ms vs ≤20ms
Both list a UPS mode, at different rated speeds. The DELTA 3800 Gen4 is rated ≤10ms — quick enough on paper that desktop PCs and routers should ride through, treating that as the rating it is. The Explorer 2000 v2 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: No Difference
Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here. Both figures are maximums rather than guarantees: EcoFlow's depends on registering the unit in the EcoFlow app, which adds two years to a three-year standard term; Jackery's on registering the unit with Jackery, which is what extends the base term to the full period. Worth saying because the per-dollar framing can suggest otherwise: the Explorer 2000 v2 works out at 5.6 years of cover per $1,000 spent against the DELTA 3800 Gen4's 2.3, but that spread is the price gap, not the terms.
Battery Lifespan in Real Years
The DELTA 3800 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 3,763Wh on the DELTA 3800 Gen4 and 2,042Wh on the Explorer 2000 v2, so count lifetime energy — roughly 22,578 kWh against 8,168 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 3800 Gen4.
Check DELTA 3800 Gen4 price →or check the Explorer 2000 v2 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 Explorer 2000 v2 is cheaper to buy, but the DELTA 3800 Gen4 is cheaper to own. At $0.10/kWh over its lifetime vs $0.11/kWh, the DELTA 3800 Gen4's higher cycle life and capacity make each dollar go further over the years.
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 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 3800 Gen4
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 3,763Wh.
Accepts up to 2,000W of solar. Enough for a serious multi-panel array.
Adequate ports for most setups, but heavy users may want a power strip.
Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.
Explorer 2000 v2
FIXED CAPACITYFixed at 2,042Wh — 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 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
The Explorer 2000 v2 is sealed at 2,042Wh, which is fine if that covers you. The DELTA 3800 Gen4 starts at 3,763Wh and can grow beyond it with EcoFlow expansion batteries — real headroom the Explorer 2000 v2 doesn't have if your needs climb toward partial-home backup.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3800 Gen4
Nobody owns a DELTA 4 (3800) yet. EcoFlow put it on sale on November 4 and ships it in late NovemberA10, so this side runs on EcoFlow's US store page and our own arithmeticA1A5A6.
I'd want to see what both solar inputs do on a cold morning. Hypothetically, I'd put a roof string on one input and a folding panel on the other in January and watch the charge rate. EcoFlow says it charges only from 32°F upA9, so in a frozen garage the sun may have to wait for the cells to warm.
“Capacity 3,763 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3800 Gen4; buyers and the press call the pair the DELTA 4.”
Sources
us.ecoflow.co · jp.ecoflow.co
Jackery Explorer 2000 v2
Reviewers keep coming back to how easy the Explorer 2000 v2 is to move. It's compact, with a flip-up handle, and stows in a car without a fightB1. One tester used it for over six months, camping and as office backup for a laptop, monitor and Starlink, and rode out a simulated outage with a fridge, lights and a laptop with no noticeable voltage dropsB4.
Its fan is easy to live with. Reviewers find it quiet and infrequent, though louder than advertised during normal charging, and the app's Silent mode cuts it back at the cost of charge speedB2.
“At right under 40 lbs it's noticeably lighter than many other 2kWh stations — small, compact, with a flip-up handle that makes it easy to carry and stash in a car. Not featherweight, but easy to move from car to garage.”
Sources
outdoorgearlab.com · backuppowerhub.com · thesolarlab.com · voltagebasics.com · portablepowerstationreview.com · gp-reviews.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
- 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 3800 Gen4 · 12 entries]
- Lightweight, compact portability is the standout theme; quiet operation (especially in Silent mode) and proven real-world reliability round out strong sentiment. [Explorer 2000 v2 · 3 entries]
- A1
“Capacity 3,763 Wh, LFP (LiFePO4) cells. EcoFlow sells it as the DELTA 3800 Gen4; buyers and the press call the pair the DELTA 4.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A3
“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-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A4
“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-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A5
“Solar: two inputs, 11–60 V DC at up to 20 A and 1,000 W each, 2,000 W total (XT60i; two XT60i-to-LP60 cables are in the box). EcoFlow lists six charging methods; its 800 W Alternator Charger is limited to 500 W through the Solar/DC port.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A6
“Extra Battery Port: up to two extra batteries through EcoFlow's Smart Extra Battery Expansion Adapter. Compatible: the DELTA Pro 3 Smart Extra Battery and the DELTA 3 Max Plus (2,048 Wh) Smart Extra Battery. EcoFlow quotes 4–12 kWh of expandable capacity.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A7
“Weight 67.5 lb (30.6 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 (3–4 kWh and 3,600 W).”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A8
“Switches to backup within 10 ms when the grid drops; EcoFlow's FAQ says it does not support HID communication. Noise by EcoFlow's figures: 40 dB or less at up to 1,800 W, 50 dB or less at the full 3,600 W. IP20.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A9
“Rated for 6,000 cycles (EcoFlow: "15+ years"). Charges at 32–113°F (0–45°C), runs at 14–113°F (−10–45°C). Wi-Fi and Bluetooth with the EcoFlow app. Warranty: 3 years plus a 2-year extension when registered in the EcoFlow app.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- A10
“On sale at us.ecoflow.com from November 4, 2026 at $2,199; EcoFlow says it ships in late November. Kits: with two 160 W solar panels $2,899; with a DELTA 3 Max Plus extra battery (6 kWh in all) $2,999. EcoFlow also sells it in Japan, where it went on sale October 30 at ¥240,900.”
EcoFlow US store, us.ecoflow.com/products/delta-3800-gen4 (spec table, features and FAQ, read 2026-11-04) · 2026-11-04 · [mixed]
- B1
“At right under 40 lbs it's noticeably lighter than many other 2kWh stations — small, compact, with a flip-up handle that makes it easy to carry and stash in a car. Not featherweight, but easy to move from car to garage.”
outdoorgearlab.com / backuppowerhub.com — Jackery Explorer 2000 v2 review · 2025-2026 · [positive]
- B2
“The fan is relatively quiet and comes on infrequently — about 30 dB in Silent Charging Mode, ideal for indoor use. It's louder than the advertised sub-30 dB during normal charging, but the app's Silent mode dramatically reduces fan noise at the cost of charge speed.”
thesolarlab.com / voltagebasics.com — Explorer 2000 v2 review · 2025-2026 · [positive]
- B4
“Used for over six months on camping trips and as office backup for a laptop, monitor, and Starlink; rode out a multi-hour simulated home outage powering a standard fridge plus lighting and a laptop with no noticeable voltage drops.”
outdoorgearlab.com — Explorer 2000 v2 long-term testing · 2026 · [positive]
Research compiled November 4, 2026.
Who Should Buy Which
Buy the DELTA 3800 Gen4 if you…
- →You'll add a battery someday. It takes up to two, and the Jackery takes noneA6.
- →Your backup plan runs on solar. Two inputs, 2,000 W in all, against 400 W.
- →Your outages outlast a night. It ends our 8-hour blackout with 1,554 Wh left, against 91 Wh.
- →You already own a DELTA Pro 3 or DELTA 3 Max Plus battery. Either plugs into its expansion adapterA6.
Buy the Explorer 2000 v2 if you…
- →It goes in the car every weekend. 39.5 lb against 67.5 lb, with a 12 V car socket the DELTA 4 (3800) doesn't haveA3.
- →One night of backup is the whole plan. It finishes our 8-hour blackout, just.
- →You'll never add a battery or a second array. Then the DELTA 4 (3800)'s growth is money spent on nothing.
- →You need it before late November. EcoFlow ships the DELTA 4 (3800) thenA10, and the Jackery is on sale now.
If neither fits
If you want a second night but no system, look at the smaller DELTA 4. It holds more than the Jackery and skips the expansion port and second solar input you'd be paying for here.
The Bottom Line
If this is the start of home backup, I'd buy the DELTA 4 (3800). It's the only one of the two that grows past its own box, and it takes five times the solar to refill it.
If it's a box for the car and one night of outage, buy the Jackery. It's $1,300 cheaper, 28 lb lighter, and you can buy it today.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
How much is the DELTA 4 (3800), and when does it ship?
EcoFlow lists it at $2,199 on its US store and says it ships in late November. The Explorer 2000 v2 sells for $899 and is on sale now.
Can you add batteries to the Explorer 2000 v2?
No. It's sealed at 2,042 Wh. The DELTA 4 (3800) takes up to two extra batteries, either the DELTA Pro 3 battery or the DELTA 3 Max Plus battery.
How long does each one last in a power outage?
Our 8-hour blackout uses 1,645 Wh. The Explorer 2000 v2 finishes it with 91 Wh left, and the DELTA 4 (3800) finishes with 1,554 Wh, enough for most of a second night.
Which one is lighter?
The Explorer 2000 v2, at 39.5 lb against 67.5 lb for the DELTA 4 (3800).
Which one charges faster from solar?
The DELTA 4 (3800). It has two solar inputs taking 1,000 W each at 11 to 60 V, 2,000 W in all, against 400 W for the Explorer 2000 v2.
Brand matchup
EcoFlow vs Jackery: measured across every matchup →Where to buy
EcoFlow DELTA 3800 Gen4Pick
$2,199.00
$2,199.00 · direct from EcoFlow
Jackery Explorer 2000 v2
$999.00
$999.00 · direct from Jackery
Last checked 31 days ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.