Head-to-head test
EcoFlow DELTA Pro vs Jackery HomePower 3600 Pro Max
Nearly the same capacity and price band, but one runs at 30 dB and lasts 6,000 cycles while the other hits 60 dB under load and taps out at 3,500 — the quiet, longer-lived Jackery is the cheaper box to own even though it costs more to buy.
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
EcoFlow
DELTA Pro
4,810Power Score · Appliance Class
$1,899.00 · direct from EcoFlow
Last checked 6 days ago. Prices move — check before you buy.
Jackery
HomePower 3600 Pro Max
5,159Power Score · The AC & Fridge Zone
$2,099.00 · direct from Jackery
Last checked 6 days ago. Prices move — check before you buy.
Spec deltas
The DELTA Pro and the HomePower 3600 Pro Max hold almost the same energy — 3,600Wh against 3,584Wh — but they could not sound more different in a room. The DELTA Pro is rated 60 dB and the Pro Max 30, and that gap decides more of this matchup than the 16Wh between their batteries ever could.
On price the DELTA Pro leads: $1,399 against $1,799, a real $400 in your pocket today, plus a 1,600W solar input the Pro Max does not list and EcoFlow's much-loved app behind it. Those are not small things, and for the right buyer they settle it.
But the Pro Max is quieter, lighter by 25 pounds, and rated for 6,000 cycles against the DELTA Pro's 3,500 — enough that the pricier unit is actually the cheaper one to own across a decade of daily use. The decision comes down to a single question: where does this thing live, and how hard will you run it?
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Sixty against thirty is not a little louder, because every 10 dB is roughly a doubling of perceived loudness — so the DELTA Pro under load is a window AC in the room while the Pro Max stays a quiet fridge, and these boxes live exactly where you sleep or work through the blackout.
DELTA Pro is rated 60 dB and its fans whine past about 2,000WA4Pro Max is rated 30 dBboth units are bought to run indoors through an outage
Why it mattersIf this unit will ever run in a bedroom, an office, or a studio apartment, the DELTA Pro's noise takes it out of the running and the Pro Max is the one you forget is on.
rated cycles
Spread each price across the energy the battery will actually deliver — 6,000 cycles against 3,500 — and the pricier unit becomes the cheaper one, at roughly $0.08 a lifetime kilowatt-hour to the DELTA Pro's $0.11, because the $400 you save today you spend back buying a replacement battery years sooner.
Pro Max is $1,799 and rated for 6,000 cyclesDELTA Pro is $1,399 and rated for 3,500 cyclesthe Pro Max works out to about $0.08 per lifetime kWh, the DELTA Pro about $0.11
Why it mattersCycle this daily for years and the Pro Max is the cheaper box in the accounting that counts the whole life; use it a few weekends a year and both outlast you, so the $400 simply stays in your pocket.
Weight barely matters in a fixed install and matters a lot if you move it — 99 pounds is a committed two-person lift where the Pro Max's 73.85 is merely heavy — but the DELTA Pro earns some of that bulk back with a 1,600W array input the Pro Max's spec sheet does not carry, which becomes the tiebreak the instant you want to charge off-grid.
DELTA Pro weighs 99 lb and lists a 1,600W solar inputPro Max weighs 73.85 lb and lists no solar inputboth roll on built-in wheels
Why it mattersStationary and grid-tied, the lighter, quieter, longer-lived Pro Max wins; mobile or solar-dependent, the DELTA Pro's panel input and lower price start to outweigh its noise.
The specific dimensions that decide these two units — everything else is a tie.
What the Specs Don't Tell You
Selected because: The noise warning against the DELTA Pro is the sharpest single point in the matchup.
rated cycles
Four flags fire and one towers over the rest: noise. The DELTA Pro is rated 60 dB and grows a distinct high-pitched whine past about 2,000W of drawA4, while the Pro Max holds 30 dB whether it is idling or working. In a garage that is irrelevant; two feet from your pillow it is the entire decision.
The rest are supporting cast. The Pro Max is 25 pounds lighter and cuts over in 10ms against the DELTA Pro's 20, and it carries nearly twice the cycle rating. None of those would flip the matchup on their own, but they all lean the same way, and the noise flag is what turns a lean into a verdict for anyone keeping this indoors.
Lifetime Value
Selected because: The Pro Max is cheaper to own despite the higher price — the counterintuitive core.
cost / lifetime kWh
This is the counterintuitive part. The Pro Max costs $400 more to buy, and it is still the cheaper unit to own, because a 6,000-cycle battery passes far more energy before it fades than a 3,500-cycle one does. Run the price across that life and the Pro Max lands near $0.08 a lifetime kilowatt-hour, the DELTA Pro near $0.11.
The honest asterisk cuts the other way: that math only pays off if you cycle the thing. A weekend-a-month user will never reach 3,500 cycles, let alone 6,000, so both batteries outlive the use case and the DELTA Pro's $400 head start simply stays saved. Heavy daily use rewards the Jackery; light use hands the value crown back to EcoFlow.
Growth Path
Selected because: The DELTA Pro's 1,600W solar input is its real structural advantage.
solar input
Both units accept expansion batteries, but only one has a documented way to refill from the sun. The DELTA Pro lists a 1,600W solar input; the Pro Max's spec sheet lists none, and leans on the wall and the grid instead. For an off-grid build — a cabin, a van, a property where outages run for days — that input is the on-ramp, and it belongs to the DELTA Pro.
This is the clearest place the cheaper unit is also the more capable one. If your growth plan is more panels feeding a bigger bank, the Pro Max is the wrong end of this comparison, whatever its cycle rating says.
Brand Trust
Selected because: EcoFlow's app and ecosystem versus Jackery's retail reach and weaker app.
EcoFlow brings the deeper bench here: the largest ecosystem in portable power, the fastest-charging tech, and an app that rates 4.6 on iOS against Jackery's 2.3-to-3.3. If you value living in a polished app and a big accessory catalog, that is a real EcoFlow advantage the spec table does not show.
Jackery's counterweight is reach and recognition — it is the brand you can buy and return at Costco or Home Depot, which is its own kind of insurance on a $1,799 purchase. Just know that its app is the weakest of the major brands, and on a unit whose headline feature is an app-managed transfer switch, that is worth weighing.
Strengths & trade-offs
EcoFlow DELTA Pro
Strengths
- +Costs $200 less
- +Larger battery capacity
- +Faster solar charging
Trade-offs
- –Significantly heavier (+25.2 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
- –Can receive complaints about fan noise under heavy load.
- –Shorter-lived battery — rated for 3,500 charge cycles vs the HomePower 3600 Pro Max's 6,000, so it wears out sooner.
Jackery HomePower 3600 Pro Max
Strengths
- +Lighter by 25.2 lb
- +Higher AC output
- +Rated for 6,000 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
Either unit
Both handle two nights comfortably. The HomePower 3600 Pro Max uses 69% and the DELTA Pro uses 69%. With this little difference, pick based on weight and portability instead. The lighter unit wins for car camping.
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 cover an eight-hour essentials load with room left, so the night itself is a tie. The split shows up if the outage runs long: the DELTA Pro can pull 1,600W off panels to refill, while the Pro Max answers with a longer-lived, larger reserve and a wall it is waiting on. Solar prep leans DELTA Pro; raw endurance leans Pro Max.
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
HomePower 3600 Pro Max
Either battery runs a CPAP all night on a tenth of its capacity, so this was never about runtime — it is about the sound eighteen inches from your head. The Pro Max idles at 30 dB and stays there; the DELTA Pro is rated 60 and whines under load. For the person listening for the fan at 2 a.m., that is not close.
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, and their USB-C output is a wash — pick on weight, ports, or price.
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 73.9 lbs the HomePower 3600 Pro Max 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 unit covers this scenario's 4,685Wh: the DELTA Pro comes up 1,625Wh short (about 65% covered), the HomePower 3600 Pro Max 1,639Wh (65%). 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 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 14.9h. Pick on price, weight, or ports.
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 0–204hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–40.8hHigh-Draw Appliances
These reveal the real limitsscale 0–3.1h¹ 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 18, 2026
Verdict: the Jackery HomePower 3600 Pro Max
Take the HomePower 3600 Pro Max if this battery lives indoors or gets cycled hard. It is rated 30 dB where the DELTA Pro is 60 and grows a high-pitched fan whine past about 2,000WA4, it weighs 25 pounds less, it cuts over in 10ms instead of 20, and its 6,000-cycle pack makes it cheaper to own over a decade — about $0.08 a lifetime kilowatt-hour against $0.11 — despite the $400-higher sticker. The DELTA Pro's answer is genuine: it costs $1,399 to the Jackery's $1,799, it has a real 1,600W solar input the Pro Max's spec sheet lists as zero, and EcoFlow's app and ecosystem are far ahead. So buy the DELTA Pro for the garage, the solar rig, or the tighter budget. Buy the Pro Max for the quiet room you actually sit in.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 18, 2026. The links below open EcoFlow's and Jackery's current prices.
$2,099.00 · direct from Jackery
Last checked 6 days ago. Prices move — check before you buy.
or check the DELTA Pro price$1,899.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated July 18, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): Tailgating.
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 Pro rates 3.9/5 (33rd percentile of 16 Home Backup-class units), and HomePower 3600 Pro Max rates 4.4/5 (67th percentile of 16 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.
Weight Reality Check
Neither unit is grab-and-go. The HomePower 3600 Pro Max (73.9 lbs) is manageable solo but heavier than a large checked suitcase. The DELTA Pro (99 lbs) is noticeably heavier. That's a 25 lb difference.
The 60 dB problem
The DELTA Pro's rated 60 dB is not a footnote once this unit is indoors, and it climbs into a high-pitched whine past roughly 2,000W of draw. The Pro Max holds 30 dB idling or working. Every 10 dB is about a doubling of loudness, so this is the difference between a unit you forget is on and one you relocate to the garage. If it never leaves a utility room, ignore this entirely.
UPS Switchover: ≤10ms vs ≤20ms
Both list a UPS mode, at different rated speeds. The HomePower 3600 Pro Max is rated ≤10ms — quick enough on paper that desktop PCs and routers should ride through, treating that as the rating it is. The DELTA Pro 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.
Twice the cycles, if you use them
The Pro Max is rated for 6,000 charge cycles to the DELTA Pro's 3,500, which is why it costs less per lifetime kilowatt-hour despite the higher price. The honest catch: you only cash that in by cycling the battery hard for years. A light, weekend user never reaches either ceiling, so the longevity edge quietly evaporates and the cheaper DELTA Pro wins on value.
Full record above — the Test Desk pick is the HomePower 3600 Pro Max.
Check HomePower 3600 Pro Max price →or check the DELTA Pro 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 DELTA Pro is cheaper to buy, but the HomePower 3600 Pro Max is cheaper to own. At $0.1/kWh over its lifetime vs $0.15/kWh, the HomePower 3600 Pro Max's higher cycle life and capacity make each dollar go further over the years.
Brand trust
EcoFlow
Ecosystem
EcoFlow runs the deepest bench in portable power — a dozen-plus models across the DELTA and RIVER lines, panels, and smart home panels — plus X-Stream fast charging that is genuinely quick.
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
The largest owner community in the category, with an active subreddit and official forum, so answers to odd questions are usually a search away.
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 very top of the range, the DELTA Pro Ultra platform stacks batteries and inverters into whole-home backup — a flagship path, not a line-wide feature.
Worth knowing
The app is a real strength, rating 4.6 on iOS. Worth noting on the record: EcoFlow issued an October 2025 recall on the DELTA Max 2000 for overheating risk, and it briefly tested paywalling advanced app features before backlash paused the plan.
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 is the recognition-and-retail brand — stocked and returnable at Costco, Home Depot, Best Buy, and Amazon, which is its own safety net on a purchase this size.
Worth knowing
The app is the weakest of the major brands, rating between 2.3 and 3.3, with more than one confusing app and a mandatory login even offline. On a unit whose headline is an app-managed transfer switch, that is a fair thing to weigh.
Analyst note
EcoFlow wins the software and ecosystem contest cleanly, and for buyers who live in the app that matters. Jackery counters with retail ubiquity and brand trust rather than polish. If your backup plan involves tinkering, monitoring, and expanding through an app, EcoFlow is the more comfortable home; if you just want a proven box you can return to a local store, Jackery earns its keep.
Growth path
DELTA Pro
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 3,600Wh.
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.
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 Pro'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 Pro
The DELTA Pro is the established home-backup platform in this pairing, long treated as a gold standard for carrying a fridge, lights, and even a space heater through an outageA1, and reliable across months of repeated overnight use on an LFP pack rated for thousands of cyclesA3.
Two knocks recur. It is heavy, and while integrated wheels and a telescoping handle move it on flat, smooth ground, uneven terrain really wants a cartA2. And it is not quiet under load: past about 2,000W the fans take on a high-pitched whine that carries in a still room, though it stays civil at lighter drawsA4.
“Long regarded as a gold standard for home backup — designed for high-draw appliances and full-scale battery expansion, running home essentials like a fridge, lighting, and a space heater through outages.”
Sources
backuppowerhub.com · us.ecoflow.co · outdoorgearlab.com · bobvila.com · powerstationadvisor.com · robbsutton.com
Jackery HomePower 3600 Pro Max
The Pro Max shipped in 2026, so there is no seasoned field record to lean on yet — the early read comes from reviewers and their comment threads, not years of logs. The theme there is value: even viewers who like the system flag its price as the thing that gives buyers pauseB5, which lands hard against a DELTA Pro that costs $400 less up front.
The other early caveat is about the marquee feature. The automatic transfer switch truly covers a house only with extra wiring behind it — a dedicated sub-panel or Jackery's own smart panel, per an early reviewerB2. The quiet operation and 6,000-cycle longevity are the Pro Max's honest answers to the DELTA Pro, but on a launch-week unit they are ratings and promises, not yet proof.
“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
- Established home-backup platform with wheeled portability and massive expandability; the consistent knock is fan noise under heavy load. [DELTA Pro · 3 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
“Long regarded as a gold standard for home backup — designed for high-draw appliances and full-scale battery expansion, running home essentials like a fridge, lighting, and a space heater through outages.”
backuppowerhub.com / us.ecoflow.com — EcoFlow DELTA Pro review · 2025-2026 · [positive]
- A2
“Heavy but wheeled — integrated wheels and a telescoping handle help move its considerable weight, though they work best on flat, smooth surfaces; a cart is needed for uneven ground.”
outdoorgearlab.com / bobvila.com — DELTA Pro-line review · 2025-2026 · [mixed]
- A3
“Reliable through extended outage use — served as primary backup across multiple overnight outages over months, powering essentials simultaneously; LFP battery rated for thousands of cycles and 10+ years of daily use.”
powerstationadvisor.com / robbsutton.com — DELTA Pro-line review · 2025-2026 · [positive]
- A4
“Not silent under heavy load — under 2000W-plus draws the fans emit a noticeable high-pitched whine that's distracting in a quiet room, though it runs quietly enough at lighter loads.”
outdoorgearlab.com — DELTA Pro-line noise testing · 2025-2026 · [negative]
- B2
“Most homeowners use a generator input with a MANUAL interlock switch...you still have to manually flip the interlock to get power back into the house. To make the ATS work as intended, you need a dedicated sub-panel or Jackery's smart panel.”
YouTube — The Solar Lab, "Jackery HomePower 3600 Pro Max - Don't Fall For This!" (viewer comment) · 2026-06 · [negative]
- B5
“Really enjoy your videos! Very well thought out. This looks like a great system but definitely not for everyone due to the price point.”
YouTube — Outdoor Prepper, "The Power Went Out... Everything Stayed On - Jackery HomePower 3600 Pro Max" (viewer comment) · 2026-06 · [mixed]
Research compiled July 18, 2026.
Who Should Buy Which
Buy the DELTA Pro if you…
- →The buyer who wants a proven backup unit for $400 less and will charge it from panels. The 1,600W solar input and EcoFlow's mature app and ecosystem are advantages the Pro Max cannot match today.
- →Anyone installing it in a garage, basement, or utility room where 60 dB under load never reaches a living space. Out of earshot, the one thing that sinks the DELTA Pro indoors stops mattering, and you keep the lower price.
Buy the HomePower 3600 Pro Max if you…
- →The buyer running backup inside the house — a bedroom, a home office, a studio apartment — where the DELTA Pro's 60 dB whine would push you out of the room. The Pro Max holds 30 dB even under load.
- →The long-haul owner who will cycle this daily for a decade. At 6,000 cycles against 3,500, it is the cheaper unit to own across its life even though it costs more to buy.
If neither fits
If you need to power a full day of van life at 4,685Wh off one battery, neither 3,600Wh-class unit gets there alone — look at a larger bank or a matched pair. And if what you actually want is EcoFlow's fast-charging ecosystem more than any single spec here, that is a reason to shop the wider DELTA line rather than settle this exact two-way.
The Bottom Line
Take the HomePower 3600 Pro Max if this battery lives indoors or gets cycled hard. It runs at 30 dB where the DELTA Pro hits 60 with a whine under loadA4, it weighs 25 pounds less, and its 6,000-cycle pack makes it the cheaper unit to own over a decade despite the $400-higher sticker.
The DELTA Pro answers with everything the Pro Max gives up: $400 saved today, a real 1,600W solar input, EcoFlow's far better app, and years of proven service instead of a launch-week reputation. Buy it for the garage, the solar setup, or the budget. Buy the Pro Max for the quiet room you will actually sit in.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the Jackery HomePower 3600 Pro Max worth $400 more than the EcoFlow DELTA Pro?
For indoor, everyday use, yes. The Pro Max runs at 30 dB against the DELTA Pro's 60, and its 6,000-cycle battery makes it cheaper to own over a decade despite the higher price. For a garage install you plan to charge from solar, the $400-cheaper DELTA Pro and its 1,600W input is the better value.
Which is quieter, the DELTA Pro or the HomePower 3600 Pro Max?
The Pro Max, by a wide margin. It is rated 30 dB; the DELTA Pro is rated 60 and develops a high-pitched fan whine under heavy load. In a bedroom or office during an outage, that gap is essentially the whole decision.
Does the HomePower 3600 Pro Max charge from solar like the DELTA Pro?
Its spec sheet does not list a solar input, while the DELTA Pro lists 1,600W. If off-grid solar charging is central to your plan, the DELTA Pro is built for it and the Pro Max is not — it is designed around wall power and grid transfer instead.
Will the DELTA Pro or the Pro Max last longer?
The Pro Max, on paper: 6,000 cycles against the DELTA Pro's 3,500, which is why it costs about $0.08 per lifetime kilowatt-hour to the DELTA Pro's $0.11. The catch is that the Pro Max is brand-new, so that longevity is a rating rather than a track record, while the DELTA Pro has years of field use behind its number.
Where to buy
EcoFlow DELTA Pro
$1,899.00
$1,899.00 · direct from EcoFlow
Last checked 6 days ago. Prices move — check before you buy.
Jackery HomePower 3600 Pro MaxPick
$2,099.00
$2,099.00 · direct from Jackery
Last checked 6 days ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.