Head-to-head test
EcoFlow DELTA 3800 Gen4 vs Jackery HomePower 3600 Pro Max800 W More Solar, 400 W Less Inverter. Which Do You Need?
The DELTA 4 (3800) drinks 800 W more sun, and the Jackery runs a bigger inverter for less money. I'd buy the Jackery for a house on the grid, unless your power comes from panels.
Black Friday · 23 days out
Price to beat:HomePower 3600 Pro Max $1,714
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 HomePower 3600 Pro Max →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
Gunner’s take
Whole-Home Backup Tester
The Jackery is the bigger inverter and the smaller bill.
The HomePower 3600 Pro Max runs 4,000 W, surges to 8,000 W and has a 240 V outlet. The DELTA 4 (3800) runs 3,600 W from 120 V outlets and surges to 7,200 WA2. EcoFlow lists it at $2,199, and the Jackery sells for $1,799.
The EcoFlow's answer is the sun.
It takes 2,000 W of solar through two inputs, each good for 11 to 60 V and 1,000 WA5, against 1,200 W on the Jackery. It also holds 179 Wh more and weighs about 6 lb less. Both take extra batteries, so neither one boxes you in.
So the question is where your power comes from.
If it comes from the grid, I'd keep the difference and take the Jackery's 240 V outlet. If it comes from panels on the roof, the DELTA 4 (3800) refills faster every day of an outage. EcoFlow ships it in late NovemberA10, and you can order the Jackery now.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
solar input
Perfect sun is a clear noon in June. A December day gives you a few strong hours, and the box that drinks faster is the one more likely to be full by dinner. In a week-long outage with panels on the roof, that edge comes back every single day.
DELTA 4 (3800): two solar inputs, 11 to 60 V and 1,000 W each, 2,000 W in allA5HomePower 3600 Pro Max: 1,200 W of solar input3,763 Wh against 3,584 Wh
Why it mattersIf you own panels or plan to, this is the reason to pay for the EcoFlow.
cost / lifetime kWh
With identical cycle ratings, the cost to own follows the price, and the Jackery comes out cheaper per lifetime kWh. The EcoFlow's extra 179 Wh is a sliver at this size, so it doesn't close that gap. What the premium buys is the solar input and a lighter box.
$2,199 for 3,763 Wh; $1,799 for 3,584 WhBoth rated for 6,000 cycles$0.10 against $0.08 per lifetime kWh
Why it mattersIf you'd never hang a panel on it, the EcoFlow's premium buys you very little.
continuous output
A motor pulls two to three times its running watts for an instant as it starts, so 8,000 W of surge is what turns a well pump over. The 4,000 W ceiling still holds once the grid dropsB1, so whatever hangs on that 240 V outlet has to fit under it.
HomePower 3600 Pro Max: 4,000 W continuous, 8,000 W surge, one 240 V outletDELTA 4 (3800): 3,600 W continuous, 7,200 W surge, 120 V outletsA2A commenter under a Jackery review notes its inverter carries no more than 4,000 W at 240 V once pass-through power is cutB1
Why it mattersIf a 240 V load or a big motor is on your list, buy the Jackery.
The specific dimensions that decide these two units — everything else is a tie.
Growth Path
Selected because: Both expand, and the DELTA 4 (3800) feeds its bank with 2,000 W of solar against 1,200 W.
solar input
Both grow, and a bigger bank is where the extra solar pays. The DELTA 4 (3800) takes up to two extra batteries, EcoFlow's DELTA Pro 3 or DELTA 3 Max Plus packs, and EcoFlow quotes 4 to 12 kWh in allA6. Add batteries to any station and the solar input becomes the bottleneck. This one starts with 800 W more of it.
I can't give you the Jackery's ceiling. It takes Jackery's expansion batteries, but the published figures for how far it goes disagree with each otherB0. If you already own one of those EcoFlow packs, that settles which box to grow.
What the Specs Don't Tell You
Selected because: The Jackery runs 4,000 W with an 8,000 W surge and a 240 V outlet. The DELTA 4 (3800) runs 3,600 W.
The Jackery starts bigger motors. It peaks at 8,000 W against 7,200 W, and that startup ceiling decides whether a motor turns over at all. A fridge or a sump pump starts on either. A deep well pump on 240 V has one option here.
Weight and switchover are close enough to ignore. 67.5 lb against 73.9 lb is about 6 lb, and both are lifts you plan rather than grab. Both promise a switchover no worse than 10 ms, and EcoFlow's FAQ says the DELTA 4 (3800) doesn't support HIDA8, the USB link a UPS uses to tell a computer to shut down.
Lifetime Value
Selected because: Both are rated for 6,000 cycles, so the cost to own follows the price.
cost / lifetime kWh
With the same cycle rating, the cheaper box is the cheaper box to own. Spread each price over its rated energy and the Jackery comes to $0.08 a kWh against $0.10. At one cycle a day either reaches its rating in 16.4 years, so neither wears out first.
So the premium has to buy something other than battery. The DELTA 4 (3800) holds 179 Wh more, a sliver at this size. What $400 actually buys is 800 W more solar and a lighter box. If neither touches your life, the Jackery is the better deal.
Brand Trust
Selected because: In a blackout you lean on the app, and the two brands' apps rate far apart.
In a blackout, the app is the screen you'll lean on. EcoFlow's rates 4.6 out of 5 on iOS and 4.2 on Android. Jackery's rates 2.3 to 3.3, and it wants a login even offline, an odd ask when the internet went down with the power.
EcoFlow brings its own baggage. It tested paywalls on advanced app features in early 2025 before backing off, and it offers no parts or service out of warranty. Whichever you buy, I'd buy it from a big retailer for the return window.
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 HomePower 3600 Pro Max
Front panel
- 1USB-C 100 W · USB-A 18 WOutOne USB-C port, up to 100 W (20 V at 5 A), and one USB-A port, up to 18 W, as printed on the panel and in Jackery’s specs.
- 22× NEMA 5-20R · 120 VOutTwo 120 V T-slot outlets, 16.7 A and 2,000 W each by Jackery’s specs. The 120 V side gives 2,000 W in all, with a 4,000 W surge.
- 3NEMA 14-50R · 240 VOutA 240 V outlet, 16.7 A and 4,000 W rated (8,000 W surge at 240 V) by Jackery’s specs. Jackery recommends its grounding adapter for EV charging.
No car socket on this unit. The inputs, the battery port and the parallel port are on the side, mapped below.
Photo: Jackery · Product image, Jackery store · numbers and labels are ours. USB ratings printed on Jackery’s panel; outlet types and ratings from the tech specs on Jackery’s US store page.
Input side
- 1AC expansion port · 240 VInListed by Jackery as an input: 240 V at up to 16.7 A, 4,000 W.
- 2Parallel portIn · OutA port Jackery names Parallel Communication, for the cable that links two units.
- 3EPOInA terminal Jackery names EPO (Emergency Power Off).
- 42× DC8020 solar · 1,200 WInTwo DC8020 inputs: 16 to 60 V at up to 12 A each and 24 A together, 1,200 W of solar in all (8 A combined at 12 to 16 V), by Jackery’s figures.
- 5AC in · 15 AInThe AC charging inlet, printed AC 100V-120V 15A MAX.
- 6Battery portIn · OutA port Jackery names the DC Expansion Port, for its Battery Pack 3600. Jackery says one unit expands to 21.5 kWh.
Photo: Jackery · Product image, Jackery store; Jackery’s numbered callouts cropped off and their leader lines painted out · numbers and labels are ours. Port names printed on Jackery’s panel and listed on Jackery’s US store page; ratings from the tech specs on that page and the panel’s printing; the solar figures from Jackery’s own answer on that page.
Strengths & trade-offs
EcoFlow DELTA 3800 Gen4
Strengths
- +Lighter by 6.3 lb
- +Larger battery capacity
- +Faster solar charging
Trade-offs
- –No major technical downsides compared to rival.
Jackery HomePower 3600 Pro Max
Strengths
- +Costs $400 less
- +Higher AC output
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
Either unit
Both handle the 2,100 Wh weekend with room left. The DELTA 4 (3800) is about 6 lb lighter, and that's all that separates them at the campsite.
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
Either unit
Both finish the 1,645 Wh night, the DELTA 4 (3800) with 1,554 Wh left and the Jackery with 1,401 Wh. Call it a tie and decide on solar or 240 V.
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 HomePower 3600 Pro Max is rated 30dB and the DELTA 3800 Gen4 40dB, but the HomePower 3600 Pro Max'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
Either unit
Both power your workstation all day without strain. At these utilization levels the real difference is USB-C for direct laptop charging — 140W on the DELTA 3800 Gen4 against 100W — which beats the inverter for convenience and wastes less energy.
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 handle game day easily. Since capacity isn't the deciding factor, weight is: at 67.5 lbs the DELTA 3800 Gen4 is the one you'll be glad you brought. Fan noise under load is worth a listen too — it's audible in the lulls between songs.
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 holds 4,685 Wh on its own battery. Both take extra batteries, and the DELTA 4 (3800) refills faster from panels between stops.
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 15.6h. 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 0–213.2hComfort & 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 HomePower 3600 Pro Max
For a house on the grid, I'd buy the Jackery. At $1,799 against $2,199 it costs less per watt-hour, runs 4,000 W against 3,600 W, surges to 8,000 W against 7,200 W and has the only 240 V outlet on this page. Both carry 6,000-cycle ratings, so the Jackery is also cheaper to own per kWh, $0.08 against $0.10. The DELTA 4 (3800) earns its premium on solar: 2,000 W across two open 11 to 60 V inputsA5 against 1,200 W through a plug one commenter calls proprietaryB3. If panels charge it every day, that flips the call.
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.
$2,099.00 · direct from Jackery
Last checked 31 days ago. Prices move — check before you buy.
or check the DELTA 3800 Gen4 price$2,199.00 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): 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 3800 Gen4 rates 4.1/5 (48th percentile of 22 Home Backup-class units), and HomePower 3600 Pro Max rates 4.3/5 (57th percentile of 22 Home Backup-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.
About 6 lb Apart
The DELTA 4 (3800) is 67.5 lb and the Jackery 73.9 lb. Both are lifts you plan rather than grab, so weight shouldn't decide this pair.
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.
Full record above — the Test Desk pick is the HomePower 3600 Pro Max.
Check HomePower 3600 Pro Max price →or check the DELTA 3800 Gen4 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 HomePower 3600 Pro Max wins on both sticker price and long-term value. At $0.08/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner. One thing to know reading the table: both carry the same 6,000-cycle rating, so the lifetime rows are sticker price and capacity in disguise — the wear horizon is identical and decides nothing here.
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.
HomePower 3600 Pro Max
EXPANDABLESupports Jackery expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 3,584Wh.
Accepts up to 1,200W of solar. Enough for a serious multi-panel array.
Limited ports. You'll likely need a power strip or splitter.
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 3800 Gen4's higher solar ceiling (2,000W 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 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 page leans on EcoFlow's US store page and our own arithmeticA1A5.
I'd want to load both solar inputs with another brand's panels. Hypothetically: one string per input, each under 60 V, on a clear noon, to see whether it really pulls close to 2,000 WA5. If it does, the case for paying more holds.
“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 HomePower 3600 Pro Max
What exists on the Jackery comes from reviewers and their commenters, not long-term ownersB0. One commenter asks why Jackery uses its own solar plug instead of the common XT60B3. Another points out that the inverter carries no more than 4,000 W at 240 V once pass-through power is cutB1.
A press reviewer shrugged at the switchover spec. He calls Jackery's 10 ms transfer impressive but perhaps practically meaningless, since he never noticed a switchover on another brand's unit eitherB6.
“Regarding your dislike of inverter fail to stay on if > 4000W passthrough is terminated, it's understandable. It's internal inverter can only handle 4000W 240V.”
Sources
powerstationlab.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]
- Commenters and a press reviewer repeatedly question whether the marketed automatic transfer switch delivers true whole-home UPS coverage, given the 4,000W continuous ceiling and a gap between switchover-speed marketing claims and what testers actually notice in practice. [HomePower 3600 Pro Max · 3 entries]
- Getting the full ATS benefit requires extra infrastructure (a dedicated sub-panel or Jackery's smart panel), and the solar input uses a proprietary connector rather than the industry-common XT60. [HomePower 3600 Pro Max · 2 entries]
- Reactions to price and capacity are mixed: cheaper than the closest whole-home competitor but with roughly half the base capacity, and viewers flag the price point as a barrier despite liking the concept. [HomePower 3600 Pro Max · 2 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]
- A2
“US unit: 120 V AC, 60 Hz; rated 3,600 W continuous with a 7,200 W surge. It supports X-Boost (EcoFlow refers to the manual for the US X-Boost figure); X-Boost is unavailable while the unit charges from the wall or runs in bypass.”
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]
- 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
“Regarding your dislike of inverter fail to stay on if > 4000W passthrough is terminated, it's understandable. It's internal inverter can only handle 4000W 240V.”
YouTube — The Solar Lab, "Jackery HomePower 3600 Pro Max - Don't Fall For This!" (viewer comment) · 2026-06 · [mixed]
- B3
“Why doesn't Jackery use the common XT60 connector when hooking up solar? Seems proprietary.”
YouTube — The Solar Lab, "Jackery HomePower 3600 Pro Max - Don't Fall For This!" (viewer comment) · 2026-06 · [negative]
- B6
“Jackery says it can automatically flip on backup power in just 10 milliseconds...impressive, but perhaps practically meaningless, considering I never noticed when the Solix E10 switched to backup power in my testing.”
Gizmodo — "Jackery's New HomePower Backup Batteries Could Be a Cheap Way to Get (Partially) Off the Grid" · 2026 · [mixed]
Research compiled November 4, 2026.
Who Should Buy Which
Buy the DELTA 3800 Gen4 if you…
- →You charge from panels. 2,000 W of solar against 1,200 W.
- →You own another brand's panels. Each input takes 11 to 60 V on an XT60i plugA5.
- →You already own a DELTA Pro 3 or DELTA 3 Max Plus extra battery. The DELTA 4 (3800) takes eitherA6.
- →Your laptop wants 140 W from USB-C. The Jackery tops out at 100 W.
Buy the HomePower 3600 Pro Max if you…
- →Something runs on 240 V, like a deep well pump or a dryer.
- →Your biggest loads have motors. 8,000 W of surge against 7,200 W.
- →It charges from the wall and waits for outages. Without panels, the EcoFlow's premium buys very little.
- →The outage won't wait for late November. EcoFlow ships the DELTA 4 (3800) thenA10.
If neither fits
If this is for weekend camping, both carry far more than the 2,100 Wh weekend needs and both weigh 67.5 lb or more. A smaller portable and one folding panel do that job with less hauling.
The Bottom Line
If your power comes from the grid, buy the Jackery. It costs less to own, runs the bigger inverter and has the 240 V outlet, and you can order it today.
If your power comes from the sun, the DELTA 4 (3800) is worth the premium. It takes 800 W more solar and holds a little more, and that edge pays out on every short winter day.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
How much is the DELTA 4 (3800) in the US, and when does it ship?
EcoFlow lists it at $2,199 on its US store. It went on sale on November 4, 2026, and EcoFlow says it ships in late November. The HomePower 3600 Pro Max sells for $1,799.
Which one charges faster from solar?
The DELTA 4 (3800). It takes 2,000 W of solar across two inputs, against 1,200 W on the HomePower 3600 Pro Max. In perfect sun that refills it from empty in under two hours.
Can the DELTA 4 (3800) run 240 V appliances?
No. Its outlets are 120 V and it runs 3,600 W. The HomePower 3600 Pro Max has a 240 V outlet and runs 4,000 W.
How far can the DELTA 4 (3800) expand?
It takes up to two extra batteries, either EcoFlow's DELTA Pro 3 or DELTA 3 Max Plus packs, and EcoFlow quotes 4 to 12 kWh in all. The HomePower 3600 Pro Max also takes expansion batteries, Jackery's own.
Which one is cheaper to own?
The HomePower 3600 Pro Max. Both are rated for 6,000 cycles, and spread over that life it costs $0.08 per kWh against $0.10 for the DELTA 4 (3800).
Brand matchup
EcoFlow vs Jackery: measured across every matchup →Where to buy
EcoFlow DELTA 3800 Gen4
$2,199.00
$2,199.00 · direct from EcoFlow
Jackery HomePower 3600 Pro MaxPick
$2,099.00
$2,099.00 · direct from Jackery
Last checked 31 days ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.