Head-to-head test
EcoFlow DELTA 3 Ultra vs Jackery Explorer 2000 Plus
Same $1,199 price tag, but the DELTA 3 Ultra packs 1,029Wh more capacity — the only real question is whether you can carry the extra 15.7 lbs that comes with it.
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk

EcoFlow
DELTA 3 Ultra
5,362Power Score · The AC & Fridge Zone
$1,299.00 list · direct from EcoFlow

Jackery
Explorer 2000 Plus
4,407Power Score · Appliance Class
$899.00 list · direct from Jackery
Spec deltas
Both cost $1,199. The DELTA 3 Ultra holds 3,072Wh; the Explorer 2000 Plus holds 2,042.8Wh. That's not a rounding difference — it's 1,029 more watt-hours for the same money, which is roughly one and a half times the battery.
That capacity gap isn't theoretical. Run the numbers with a realistic 85% usable-capacity haircut and the DELTA 3 Ultra covers a full weekend camping load using 80% of what it has. The Explorer needs 121% of what it has for the same trip — it simply can't do it.
The one place the Explorer pushes back is weight: 61.5 lbs against the DELTA 3 Ultra's 77.2. If you're the one lifting it, that's a real number, not a footnote.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
Spread across the warranty period, that's ten cents per lifetime kWh for the DELTA 3 Ultra against fifteen cents for the Explorer. When two units cost exactly the same, cost-per-kWh isn't a tiebreaker — it's the whole argument.
DELTA 3 Ultra: $1,199, 3,072WhExplorer 2000 Plus: $1,199, 2,042.8Wh
Why it mattersAnyone comparing these on price alone should stop: the price is a wash, so the decision comes down entirely to what the extra capacity is worth to you physically.
weight
Work it per pound and the DELTA 3 Ultra actually comes out ahead: roughly 40Wh of capacity per pound against the Explorer's 33Wh per pound. Reviewers note both units need two hands and grab handles built for exactly this kind of liftA14B3 — so if you're moving it once and living off it, the heavier box is also the more efficient one to have hauled.
DELTA 3 Ultra: 77.2 lbs, 3,072WhExplorer 2000 Plus: 61.5 lbs, 2,042.8Wh
Why it mattersA van-lifer or home-backup buyer who sets it down once and leaves it should stop weighing raw pounds and start weighing Wh per pound — the DELTA 3 Ultra wins that math despite being the bigger lift.
This isn't a marginal edge — the Explorer literally cannot complete the weekend camping scenario at its rated capacity, while the DELTA 3 Ultra finishes it with a fifth of its battery still in reserve. Same money, structurally different outcome the moment you actually use the thing.
Weekend Camping (2,100Wh need): DELTA 3 Ultra uses 80% of usable capacity; Explorer needs 121% and can't cover it8-Hour Blackout (1,645Wh need): DELTA 3 Ultra uses 63%; Explorer uses 95%
Why it mattersIf you have a specific weekend or outage load in mind, run it against both usable-capacity numbers before you buy — at this price parity, the DELTA 3 Ultra is the one that doesn't come up short.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: Same price makes cost-per-kWh the cleanest way to show the capacity gap.
cost / lifetime kWh
Ten cents a kilowatt-hour against fifteen — at the same $1,199 sticker price, that's what 1,029 extra watt-hours of capacity buys you over the DELTA 3 Ultra's rated life. When price stops being a variable, cost-per-kWh becomes the whole conversation.
This isn't a case of paying more for more. It's the rare matchup where the bigger, longer-lasting unit costs exactly the same as the smaller one — which is why the verdict here isn't close.
Your Life, Your Pick
Selected because: The Explorer fails a scenario the DELTA 3 Ultra clears with room to spare — worth naming directly.
Run a real weekend camping load through both units with a realistic 85% usable-capacity haircut, and the DELTA 3 Ultra finishes at 80% used. The Explorer needs 121% of what it has — it can't finish the trip at all.
The gap holds through an 8-hour blackout too: 63% used for the DELTA 3 Ultra against 95% for the Explorer. Only at CPAP-level loads, where both units are barely taxed, does the difference stop mattering.
What the Specs Don't Tell You
Selected because: Weight is the DELTA 3 Ultra's one honest tradeoff for the extra capacity; UPS speed also splits.
77.2 lbs versus 61.5 — a 15.7 lb difference you'll feel every time you relocate either unit. Neither one is a one-hand carry; both need two hands and the grab handles they ship withA14B3. If a single-person lift matters more to you than capacity, that's a real reason to take the smaller box.
The DELTA 3 Ultra also switches to battery faster: 10ms against the Explorer's 20ms. For anything sensitive plugged in as a UPS — a NAS, a desktop, a router — that gap is the difference between a clean handoff and a noticeable blip.
Growth Path
Selected because: Both expand, but solar ceiling differs enough to matter for off-grid growth.
solar input
Both units accept expansion batteries, so neither locks you into today's capacity. The DELTA 3 Ultra's edge is upstream of that: 1,600W max solar input against the Explorer's 1,200W, a 400W gap that matters more as your setup — and your battery bank — grows.
More solar input means faster refills as you add panels, which is the quieter but more durable growth path of the two.
Strengths & trade-offs
EcoFlow DELTA 3 Ultra
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Substantially more expensive (+$400) than the Explorer 2000 Plus.
- –Significantly heavier (+15.7 lbs), making it harder to move.
Jackery Explorer 2000 Plus
Strengths
- +Costs $400 less
- +Lighter by 15.7 lb
Trade-offs
- –Weaker inverter (-600W) limits appliance compatibility.
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 3 Ultra
The Explorer 2000 Plus runs out of juice. It only has 1,736Wh usable, but this scenario needs 2,100Wh. The DELTA 3 Ultra covers it and still has 34h of phone charging left over.
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 3 Ultra
Both survive, but the DELTA 3 Ultra finishes at just 63% used. That's enough reserve for a second blackout night. The Explorer 2000 Plus at 95% leaves little margin if the outage runs longer than expected. In storm-prone areas, that remaining capacity is insurance.
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 are wildly overqualified for CPAP. You're using 18% or less. Save your money and buy whichever is cheaper; the extra capacity is completely wasted on a 40W overnight load. Put the savings toward a second battery for multi-night trips.
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 3 Ultra
The DELTA 3 Ultra gives you a comfortable buffer at 35%. Enough to work late, join extra video calls, or charge a second device without worry. The Explorer 2000 Plus at 52% works but leaves less room for the unexpected. For daily remote work, that peace of mind matters.
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 Ultra
Both handle game day, and the DELTA 3 Ultra does it with more in reserve — 26% used against 39%. Tailgating is a light load, so that headroom counts for less here than the 16 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: DELTA 3 Ultra runs 12.7h vs 8.5h.
$1,299 list · direct from EcoFlow
Modeled from the spec record — same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.¹
Essentials
The basics you need runningscale 0–174.1hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–34.8hHigh-Draw Appliances
These reveal the real limitsscale 0–2.6h¹ Runtime = (capacity × 0.85) ÷ appliance watts. Within each group, all bars share one time scale (the group's longest runtime), so lengths are comparable across appliances; identical runtimes collapse into a single blue/orange bar. Actual runtime varies with battery age, temperature, and simultaneous loads — see methodology.
Conclusion
July 14, 2026
Verdict: the DELTA 3 Ultra, on Power Score margin
At identical prices, the DELTA 3 Ultra gives you roughly 1.5 times the Explorer's capacity, wins nearly every real-world scenario, and switches to battery twice as fast. Take it unless the extra 15.7 lbs is a genuine dealbreaker for how you'll move it.
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.
$1,299.00 list · direct from EcoFlow
or check the Explorer 2000 Plus price$899.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated July 14, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): Apartment Balcony.
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 Ultra rates 5.0/5 (99th percentile of 25 Large-class units), and Explorer 2000 Plus rates 4.5/5 (71st percentile of 25 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.
The Trade for 1,029 Extra Watt-Hours
77.2 lbs against 61.5 — the DELTA 3 Ultra is the heavier lift of the two, full stop. But it's also carrying about 40Wh per pound versus the Explorer's 33Wh per pound, so the extra weight is buying more battery than it looks like on the bathroom scale. If you're setting it down once and leaving it there, that trade favors the bigger unit.
10ms vs 20ms — Which Matters for a Home UPS
The DELTA 3 Ultra's 10ms switchover is fast enough that reviewers running sensitive equipment through it reported no dips or shutoffs during a real power interruption. The Explorer's 20ms is still fine for most electronics, but it's the slower of the two if you're protecting something that can't tolerate a hiccup.
Warranty Value Comparison
The Explorer 2000 Plus gives you 5.6 years of warranty per $1,000 spent, vs the DELTA 3 Ultra's 3.8 years. That's 1.4× more coverage per dollar. An underrated factor if you're keeping this unit for years.
Full record above — the Test Desk pick is the DELTA 3 Ultra.
Check DELTA 3 Ultra price →or check the Explorer 2000 Plus priceOwnership Analysis
What happens after you buy — true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.
Analyst note
The Explorer 2000 Plus is cheaper to buy, but the DELTA 3 Ultra is cheaper to own. At $0.11/kWh over its lifetime vs $0.11/kWh, the DELTA 3 Ultra'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
EcoFlow's X-Stream fast-charging tech and the deepest product ecosystem in the category back up the DELTA 3 Ultra's spec advantage here — this is a brand built around exactly this kind of flagship.
Worth knowing
EcoFlow's October 2025 DELTA Max 2000 recall over overheating risk is worth knowing about, even though it's a different model line than the DELTA 3 Ultra.
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
Jackery's advantage is availability, not capacity — Costco, Home Depot, and Best Buy shelves mean you can hold one before you buy it.
Worth knowing
Jackery has been the slowest of the major brands to standardize on LFP chemistry across its lineup, though the Explorer 2000 Plus itself uses it.
Analyst note
EcoFlow's ecosystem is larger and its support more consistent than Jackery's on paper, and the DELTA 3 Ultra's spec sheet here reflects a brand pushing the category forward rather than defending shelf space.
Growth path
DELTA 3 Ultra
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 3,072Wh.
Accepts up to 1,600W of solar. Enough for a serious multi-panel array.
Generous port selection supports complex multi-device setups.
Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.
Explorer 2000 Plus
EXPANDABLESupports Jackery expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 2,043Wh.
Accepts up to 1,200W 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 Jackery-specific. You're investing in the Jackery ecosystem.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Both expand, but the DELTA 3 Ultra's higher solar ceiling (1,600W vs 1,200W) gives it the stronger off-grid growth path — more panels can feed a bigger bank as it grows.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3 Ultra
This is a recent release, so most published testing covers the closely related Ultra Plus configuration on the same chassis and inverter — worth knowing before you weight the ledger too heavily. With that caveat, the fan behavior stands out: reviewers pushing the inverter to its maximum output report the fans never become annoying or distractingA1A2, a real change from earlier EcoFlow generations.
The UPS switchover holds up under scrutiny too — one reviewer with an APC-trained ear called the transfer to battery immediate, with no dips or shutoffs when unplugged from the wallA5A6. On the workday side, one reviewer ran a laptop, desktop workstation, and monitors for a full eight-hour day and still had 40% leftA8. The build itself reads as premium rather than plasticky: reviewers single out the case, cable, and port doors as feeling substantialA9A15.
“Even when you're pushing it hard, the DELTA 3 Ultra Plus runs much quieter than older EcoFlow models, like the DELTA 2 Max.”
Sources
thesolarlab.com · postperspective.com · appleinsider.com · digitaltrends.com · popsci.com
Jackery Explorer 2000 Plus
Reviewers keep landing on the same word for the Explorer 2000 Plus: dependable. It holds a full 3,000W load without drama and covers everything from a CPAP machine to an electric grill without complaintB1. The app has real substance too — cycle counts and efficiency graphs that go beyond the basicsB4.
The honest catch is the one every review repeats: at 61-62 lbs it's not light, and while the wheels and handle help on smooth ground, stairs turn it into a two-person jobB3. Reviewers also note the app still needs polish beyond those core numbersB4 — solid fundamentals, rougher edges.
“Reviewers describe it as dependable, easy to use, and relatively quiet even under a 3000W load, with universal compatibility for powering everything from CPAP machines to electric grills.”
Sources
outdoorgearlab.com · thesolarpit.com · jackery.com · voltagebasics.com · storagereview.com · thesolarlab.com · tipselite3s.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
- Reviewers consistently praise the quiet fan operation of the Ultra-tier unit compared to older EcoFlow models, though this is described in professional test conditions rather than long-term ownership. [DELTA 3 Ultra · 2 entries]
- UPS/switchover performance is repeatedly called seamless with no observed dips or shutdowns during power interruption tests. [DELTA 3 Ultra · 3 entries]
- The unit's substantial 74 lb weight is flagged across multiple reviews as a portability drawback, mitigated somewhat by wheels and handle design. [DELTA 3 Ultra · 2 entries]
- Build quality/durability (casing, cable, port covers) is repeatedly highlighted as premium and well-engineered. [DELTA 3 Ultra · 2 entries]
- Standout expandability (up to 24kWh dual), a rugged IP65 build with wheels, and dependable quiet operation are the praise; the heavy weight and an app that needs polish are the caveats. [Explorer 2000 Plus · 3 entries]
- A1
“Even when you're pushing it hard, the DELTA 3 Ultra Plus runs much quieter than older EcoFlow models, like the DELTA 2 Max.”
thesolarlab.com — EcoFlow DELTA 3 Ultra Plus Review: The Ultimate DELTA? · 2025-09/10 (approx) · [positive]
- A2
“Even when you're pushing the inverter to its maximum output, the fans never become annoying or distracting.”
thesolarlab.com — EcoFlow DELTA 3 Ultra Plus Review: The Ultimate DELTA? · 2025-09/10 (approx) · [positive]
- A5
“Over my career I have become accustomed to APC batteries immediately switching on when there is a power hit or power shut-off, and the EcoFlow Delta 3 Ultra Plus works in the exact same way.”
postperspective.com — Review: EcoFlow Delta 3 Ultra Plus Portable Power Station · 2026-04 · [positive]
- A6
“I didn't experience any shut-offs or dips when I unplugged the EcoFlow from the wall.”
postperspective.com — Review: EcoFlow Delta 3 Ultra Plus Portable Power Station · 2026-04 · [positive]
- A8
“I was able to work remotely for an eight-hour day with 40% power left, which included running my laptop, desktop workstation and monitors.”
postperspective.com — Review: EcoFlow Delta 3 Ultra Plus Portable Power Station · 2026-04 · [positive]
- A9
“It does not feel cheap or fragile. Everything from the outer shell case to the plastic buttons and the AC cable feels substantial and durable enough to withstand day-to-day wear and tear.”
appleinsider.com — EcoFlow Delta 3 Ultra Plus review: Premium, but solid power · 2025-11-16 · [positive]
- A14
“The sturdy telescoping handle and wheels make it effortless to cart around, and if you do have to lift its admittedly somewhat hefty 74 lbs, grab handles are well placed for the task.”
popsci.com — EcoFlow DELTA 3 portable power station series first impressions · 2025-09-29 · [positive]
- A15
“I really love how the rear panel doors for the input ports slide into protective slots when in use.”
popsci.com — EcoFlow DELTA 3 portable power station series first impressions · 2025-09-29 · [positive]
- B1
“Reviewers describe it as dependable, easy to use, and relatively quiet even under a 3000W load, with universal compatibility for powering everything from CPAP machines to electric grills.”
outdoorgearlab.com / thesolarpit.com — Jackery Explorer 2000 Plus review · 2026 · [positive]
- B3
“Not light at around 61-62 lbs — included wheels and a handle help on smooth surfaces, but it still demands a two-person lift for stairs.”
outdoorgearlab.com / voltagebasics.com — Explorer 2000 Plus review · 2026 · [mixed]
- B4
“The app nails the essentials with pro-level insights like cycle counts and efficiency graphs, but it lacks some of the bells and whistles of rivals and still needs polishing.”
storagereview.com / thesolarlab.com — Explorer 2000 Plus review · 2026 · [mixed]
Research compiled July 14, 2026.
Who Should Buy Which
Buy the DELTA 3 Ultra if you…
- →Anyone comparing these two at the same price point who wants the bigger battery for no extra dollars.
- →Weekend campers and blackout-preppers whose actual load (a fridge, a few devices, lighting) is in the 1,500-2,100Wh range where the Explorer falls short.
- →Buyers using this as a home UPS, where the faster 10ms switchover has real value.
Buy the Explorer 2000 Plus if you…
- →Buyers for whom 61.5 lbs is a hard ceiling for what they can lift alone — the 15.7 lb gap is real if you're doing this solo.
- →Anyone already inside the Jackery ecosystem, or buying specifically through Costco or Amazon for the return protection.
- →Shoppers who genuinely don't need 3,000Wh and would rather carry less than pay for capacity they won't use.
If neither fits
If your daily draw is closer to 4,700Wh (a van-life daily load), both units fall short even at full capacity — you're in 5,000Wh-plus territory, and that's a different comparison.
The Bottom Line
When two units cost exactly the same, the one with 1,029 more watt-hours and a faster UPS switchover isn't a hard call — it's the DELTA 3 Ultra, and the scenario math backs it up: it clears a full weekend camping load the Explorer can't finish.
The 15.7 extra pounds are real and worth weighing if you're lifting this alone. But for the same price, that's the only thing standing between you and roughly half again the battery.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the EcoFlow DELTA 3 Ultra or Jackery Explorer 2000 Plus a better deal?
At the same $1,199 price, the DELTA 3 Ultra is the better deal by a wide margin — it holds 1,029Wh more capacity, which works out to ten cents per lifetime kWh against the Explorer's fifteen. The only reason to pick the Explorer at this price is if the extra 15.7 lbs of weight is a real problem for how you'll carry it.
How much heavier is the DELTA 3 Ultra than the Explorer 2000 Plus?
15.7 lbs heavier — 77.2 lbs versus 61.5 lbs. Neither is a one-hand carry; both ship with grab handles built for a two-handed lift. Per pound of capacity carried, though, the DELTA 3 Ultra is actually the more efficient of the two.
Can either unit handle a full weekend of camping?
The DELTA 3 Ultra can, using about 80% of its usable capacity for a 2,100Wh weekend load. The Explorer 2000 Plus can't — the same load would require 121% of what it actually has available, so you'd run out before the trip ends.
Do both units support battery expansion?
Yes, both the DELTA 3 Ultra and Explorer 2000 Plus accept add-on expansion batteries, so neither locks you into today's capacity. The DELTA 3 Ultra's higher 1,600W solar input (versus 1,200W) gives it a faster path to refilling a larger combined setup.
Where to buy

EcoFlow DELTA 3 UltraPick
$1,299.00
$1,299.00 list · direct from EcoFlow

Jackery Explorer 2000 Plus
$899.00
$899.00 list · direct from Jackery
Prices may vary by retailer and are subject to change.