Head-to-head test
EcoFlow DELTA Pro Ultra X vs Jackery HomePower 3600 Plus
One of these plugs into an extension cord and the other plugs into a breaker panel, so if you can't name the 240V circuit you're backing up, the extra $6,100 buys headroom you will never touch.
Full profiles: EcoFlow DELTA Pro Ultra X → · Jackery HomePower 3600 Plus →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
$7,999.00 · direct from EcoFlow
Last checked 1 day ago. Prices move — check before you buy.
$1,899.00 · direct from Jackery
Last checked 1 day ago. Prices move — check before you buy.
Spec deltas
The HomePower 3600 Plus costs $1,899 and finishes five of the six loads modeled on this page. The DELTA Pro Ultra X costs $7,999 and finishes all six. The extra $6,100 buys one more scenario, a 4,685Wh van-life day, which is your first clue that the money isn't going toward watt-hours.
What it's going toward is 12,000W continuous at 120/240V with 45,000W of surgeA1. The Jackery's inverter stops at 3,600W. These two aren't one appliance scaled up and down; one feeds your extension cords and the other feeds your service panel, and the second one arrives with an install date attachedA4. Buy the DELTA X because you can point at the circuit it's for. Buy it for capacity and you've overpaid by thousands.
Everything else on the sheet leans the other way, and not gently. The Jackery is rated for 6,000 cycles against 3,500. Its cells are good for 16.4 years at a full cycle a day, the DELTA's for 9.6. Both warranties run five years, identically. And 77.2 lbs rolls to the car while 298.7 lbs goes wherever the installer leaves it.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
continuous output
The gap doesn't buy watt-hours, because you can already out-buy the DELTA X on watt-hours with change left over. It buys one 12,000W, 240V supply. Four Jackeries are four separate 3,600W islands with four separate cords, and no arrangement of them starts a well pump on a 240V circuit.
DELTA Pro Ultra X: $7,999 for 12,288WhHomePower 3600 Plus: $1,899 for 3,584WhDELTA Pro Ultra X delivers 12,000W continuous at 120/240V with 45,000W surgeA1; the HomePower's inverter tops out at 3,600W
Why it mattersIf you're accumulating capacity for ordinary 120V appliances, the Jackery is the strictly better dollar; if you need one panel-level feed, buying more small units gets you no closer.
solar input
The solar number is a shopping list, not a charging speed. To collect those two and a half hours you have to own ten times the array, and on any array smaller than 1,000W the two units charge at exactly the same rate, because they're both just taking whatever the panels hand them. What 10,000W actually buys is the ability to keep feeding the bank as the bank grows.
DELTA Pro Ultra X: 10,000W solar input into 12,288WhHomePower 3600 Plus: 1,000W solar input into 3,584Wh
Why it mattersOff-grid buyers should compare the array they'll actually own rather than the ceiling on the spec sheet, and only pay for the 10,000W ceiling if a roof-scale array is already in the plan.
rated cycles
The expensive unit is also the one that reaches end of life first. Cycled hard, the Jackery has close to seven more years in it, and both carry the same five-year warranty, so nothing in the coverage compensates for the shorter deck of cycles.
HomePower 3600 Plus rated 6,000 cycles; DELTA Pro Ultra X rated 3,500Total lifetime energy: 43,008 kWh for the DELTA X, 21,504 kWh for the HomePowerAt one full cycle a day the cells are rated 16.4 years and 9.6 years respectively
Why it mattersAnyone talking themselves into the DELTA X on 'it'll last longer' should stop and re-justify it on capability, because the longevity argument runs the other direction.
weight
Almost four times the weight earns you a single extra scenario, and it's the one scenario where a 298.7-lb installed system is the least plausible answer. Everywhere the DELTA X's storage genuinely helps, it's also parked for good.
HomePower 3600 Plus: 77.2 lbs, with wheels and a pull handle called out in the reviews as what makes the class manageableB2DELTA Pro Ultra X: 298.7 lbs, with a quick-connect installation measured in daysA4The HomePower completes five of six modeled scenarios, failing only Van Life Daily at 4,685Wh against 3,046Wh usable
Why it mattersIf the unit ever has to be in a car, at a campsite, or out of the apartment at the end of a lease, stop comparing the batteries and buy the one with wheels.
The specific dimensions that decide these two units — everything else is a tie.
Your Life, Your Pick
Selected because: The Jackery completes five of the six modeled loads; only a 4,685Wh van-life day exceeds it, so the capacity gap changes one outcome out of six.
The DELTA X takes five of these and ties the sixth, and almost none of that is a reason to buy it. Read the second column instead. The Jackery ends a camping weekend at 69% used, an eight-hour blackout at 54%, a remote workday at 30%. Finishing at 54% and finishing at 16% are the same evening: the lights stayed on. Headroom only turns into a different result when the load actually exceeds the battery, and on this page that happens once.
That once is Van Life Daily. 4,685Wh against 3,046Wh of usable storage is 154%, a real miss and worth naming plainly. It's also the scenario where the alternative is least appealing, since the DELTA X's answer to a van conversion weighs 298.7 lbs. Worth noting on the other side of the ledger: every peak load in all six scenarios starts on both units, so the Jackery never trips its inverter here. It only runs out of energy, and only on the biggest day.
Lifetime Value
Selected because: Eight cents per lifetime kilowatt-hour against nineteen: the cheaper unit to buy is also the cheaper one to own.
cost / lifetime kWh
Cheaper to buy and cheaper to keep is not the usual arrangement, but that's what the cycle ratings do here. $1,899 spread across 6,000 cycles of 3,584Wh comes to eight cents a lifetime kilowatt-hour. $7,999 across 3,500 cycles of 12,288Wh comes to nineteen. You only need that pair of figures once: the DELTA X delivers twice the total energy over its life, 43,008 kWh against 21,504, and asks 4.9 times the price for it.
Put that on a calendar and it's 16.4 years of daily cycling for the Jackery against 9.6 for the DELTA X. Neither unit is likely to be cycled that hard in a backup role, so treat these as a ranking rather than a prophecy. The ranking still holds: on the engine's own numbers, the expensive box is the one you replace first.
Portability & Form Factor
Selected because: 77.2 lbs on wheels against 298.7 lbs, which is the line between a purchase and an installation.
weight
77.2 lbs is a poor lift and a fine roll, with wheels and a pull handle underneath that reviewers single out as what makes a 3.6kWh-class unit movable at allB2. 298.7 lbs isn't a lift in any posture. It's a delivery, a location decision, and a thing you don't get to reconsider on a Saturday.
This, not capacity, is the fork in the road. If the unit ever needs to be in a trunk, at a campsite, in a different room, or out of a rental when the lease ends, then 12,288Wh is a number about a box that isn't going with you. Buy the DELTA X for the address you plan to still have in ten years.
What the Specs Don't Tell You
Selected because: Both warranties run five years; the surge and switchover gaps are real but change none of the six outcomes.
rated cycles
Both warranties are five years. Identical term, identical promise. The card beside this splits it into $1,600 per warranty year against $324, but that's arithmetic on the purchase price wearing a warranty costume, and reading it as a coverage difference is how buyers talk themselves into the wrong unit.
The surge advantage is genuine and settles nothing on this page. 45,000W behind a 12,000W inverter is a 3.75x reserve; 7,200W behind 3,600W is 2x. Every peak load in all six scenarios starts on both units, so that reserve is buying the loads that aren't listed here, which mostly means compressors on a 240V circuit. Switchover is 10ms against 20ms. Both sit inside what a desktop power supply rides through without noticing, so let it break a tie and nothing more.
Growth Path
Selected because: Both take expansion batteries, but only one is aiming at 184.32kWh and a 10,000W array.
solar input
Both units take expansion batteries, which makes the yes/no row the least useful line on the table. The ceilings are what matter, and they aren't in the same conversation: 61.44kWh on one inverter and 184.32kWh across three for the DELTA XA2, against a Jackery path that reviews describe as a very large bank without publishing a number we can hold them toB4.
The solar ceilings tell the same story from the other end. 10,000W of input against 1,000W isn't mainly about charging faster, it's about how much array the unit can keep absorbing as the bank grows. Add batteries to the Jackery and its 1,000W input becomes the constraint long before its battery ceiling does. Add them to the DELTA X and the roof can keep up.
Strengths & trade-offs
EcoFlow DELTA Pro Ultra X
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Substantially more expensive (+$6,100) than the HomePower 3600 Plus.
- –Significantly heavier (+221.5 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
- –Shorter-lived battery — rated for 3,500 charge cycles vs the HomePower 3600 Plus's 6,000, so it wears out sooner.
Jackery HomePower 3600 Plus
Strengths
- +Costs $6,100 less
- +Lighter by 221.5 lb
- +Rated for 6,000 charge cycles — much longer battery lifespan
Trade-offs
- –Weaker inverter (-8,400W) 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
HomePower 3600 Plus
2,100Wh over a weekend leaves the DELTA X at 20% used and the Jackery at 69%, so the headroom win goes to the big unit by a mile. Both of them get you to Sunday with power to spare. Only one of them gets into the car.
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 Pro Ultra X
The Jackery ends an eight-hour outage at 54% used, with a second evening still in it. The DELTA X ends it at 16%, and that gap is the actual argument for a whole-home system: it isn't sized for one outage, it's sized for the week the outage turns into.
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 asks for 320Wh, which is 3% of one unit and 11% of the other, and this one is a dead heat that neither battery will notice. Nine nights out of the Jackery, thirty-two out of the DELTA X, on a single charge. There's no honest tiebreak in the machine either, since both are rated at 30dBA, so break it on the $6,100 and the 298.7 pounds instead.
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 Pro Ultra X
The DELTA Pro Ultra X clears the workday at 9% used, banking 9,535Wh — late work, extra calls, or a second laptop charge without arithmetic. The HomePower 3600 Plus at 30% also finishes, with 2,136Wh 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
HomePower 3600 Plus
670Wh is 6% of the DELTA X and 22% of the Jackery, so the headroom title goes to the big one. Then you have to get 298.7 pounds across a parking lot. The Jackery finishes the afternoon at roughly a fifth of its charge and rolls back to the car on its own wheels.
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
DELTA Pro Ultra X
4,685Wh a day is the single load on this page the Jackery can't finish, running 154% of its 3,046Wh of usable storage. The DELTA X covers it at 45% and is the only unit here that clears the day. It also weighs 298.7 pounds and installs into a building, which is not a van conversion, so treat this less as a recommendation and more as proof that a daily 4.7kWh draw has outgrown both of these.
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 Pro Ultra X runs 51h vs 14.9h.
$7,999 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 0–696.3hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–139.3hHigh-Draw Appliances
These reveal the real limitsscale 0–10.4h¹ 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
August 9, 2026
Verdict: the Jackery HomePower 3600 Plus
Buy the HomePower 3600 Plus unless you can name the 240V circuit you're backing up. At $1,899 it finishes five of the six loads modeled on this page, missing only a 4,685Wh van-life day, and it's rated for 6,000 cycles against the DELTA X's 3,500, which makes the cheap unit the long-lived one too: eight cents a lifetime kilowatt-hour against nineteen. The DELTA Pro Ultra X earns its $7,999 in exactly one way, and it's a good way: 12,000W continuous at 120/240V with 45,000W of surge behind it, enough to carry every circuit including a 5-ton ACA1. That is panel-level backup the Jackery's 3,600W inverter cannot reach at any quantity. So the test is short. If your outage plan is the fridge, the router and the bedroom, the Jackery does it and leaves $6,100 in your account. If your outage plan is the well pump and the central air, the Jackery isn't a candidate and the price gap stops being interesting.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of August 9, 2026. The links below open EcoFlow's and Jackery's current prices.
$1,899.00 · direct from Jackery
Last checked 1 day ago. Prices move — check before you buy.
or check the DELTA Pro Ultra X price$7,999.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated August 9, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): UPS, RV Living, Solar Generator, 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 Ultra X rates 4.3/5 (61st percentile of 29 Whole-Home / Off-Grid-class units), and HomePower 3600 Plus rates 4.1/5 (47th 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.
298.7 lbs isn't a lift, it's a delivery
77.2 lbs is a bad lift made fine by wheels and a pull handle. 298.7 lbs is nearly four times that and has no good posture. Plan the DELTA X's location before it arrives, because moving it later is a project rather than an afternoon.
The surge reserve is real and decides nothing here
45,000W behind a 12,000W inverter is a 3.75x reserve against the Jackery's 2x, and that headroom is the mark of a serious inverter. It just doesn't change an outcome on this page: every peak load in all six scenarios starts on both units. The reserve is for the loads that aren't listed, which mostly means 240V compressors.
10ms against 20ms: a tiebreaker, not a reason
Both switchover times sit inside the window a desktop power supply rides through without dropping. The difference shows up only with genuinely intolerant gear on a dirty grid. If this line is what's deciding your purchase, the rest of the page hasn't given you enough.
Same warranty, both units
Five years each. Identical term, identical promise, nothing to choose between them. The $1,600 versus $324 per-warranty-year figure is the purchase price divided by five, so it's the price gap in a different outfit rather than a coverage finding.
The cheap one outlives the expensive one
6,000 rated cycles against 3,500, which at a full cycle a day is 16.4 years against 9.6. Neither unit will be cycled that hard in a backup role, so read it as a ranking rather than a countdown. The ranking is the surprise: the $7,999 system is the one that reaches end of life first.
Full record above — the Test Desk pick is the HomePower 3600 Plus.
Check HomePower 3600 Plus price →or check the DELTA Pro Ultra X 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 Plus wins on both sticker price and long-term value. At $0.09/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner. One caution on the lifespan row: the HomePower 3600 Plus takes longer to reach its cycle rating, but a cycle moves a different amount of energy on each unit — the DELTA Pro Ultra X still delivers more over its shorter horizon (43,008 vs 21,504 kWh). Years measure wear, not usefulness.
Delivers each lifetime kWh for $0.10 less — check the HomePower 3600 Plus price →
Brand trust
EcoFlow
Ecosystem
The deepest catalogue in portable power, 12-15 models across DELTA Pro, DELTA 3 and RIVER 3 plus panels and smart home panels, and the DELTA Pro Ultra X sits at the top of that stack rather than off to one side of it.
Support
US phone, email and chat, with genuinely polarized results: plenty of hassle-free prepaid-label replacements, and plenty of long waits and refurbished units sent against new-unit claims. Buying through Costco or Amazon gives you a second safety net that doesn't depend on which experience you get.
Community
The biggest owner community in the category, around 31,000 on Reddit plus Facebook groups and an official forum, which is worth real money on a system you may be troubleshooting yourself.
App experience
Rated 4.6/5 iOS (~8,400 ratings) · 4.2/5 Android (~17,000 ratings)
Unique strength
X-Stream fast charging, the fastest innovation cadence in the space, and an expansion ceiling nothing else here approaches.
Worth knowing
No parts or service offered out of warranty, which reads differently on a $7,999 installed system than on a portable box. The October 2025 DELTA Max 2000 recall for overheating risk is on the record, as is a 2025 attempt to paywall advanced app features that was paused after owner pushback.
Jackery
Ecosystem
12-15+ models across the portable Explorer and home-backup HomePower lines plus the SolarSaga panels, with the widest retail footprint in the category: Costco, Home Depot, Best Buy and Amazon.
Support
The weak spot. US-based but widely criticized for slow and scripted responses, strict receipt requirements on warranty claims, and refurbished replacements for clearly defective units. Buying from a retailer with its own return policy is less a tip than a precaution here.
Community
The smallest of the major brands, around 2,000 on Reddit, so DIY troubleshooting help is thinner than the brand's name recognition suggests. YouTube coverage is good.
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
Availability and predictability. You can put hands on one at a big-box store this afternoon and return it there if it disappoints, which is a real advantage over any direct-order-only rival.
Worth knowing
The app is the worst of the majors at 2.3-3.3 out of 5, split across two confusing apps, and it demands a login even offline. That is a peculiar thing to discover in a product bought for the day the internet is down. A few older Jackery models still ship NMC cells with shorter rated lives, though this one is the 6,000-cycle LFP.
Analyst note
EcoFlow gives you the better software and the far bigger community, which matters more as the system gets more complicated, and this system is complicated. Jackery gives you a shelf at Costco, which matters more when support goes badly, and both brands' support can go badly. The sharpest brand-level asymmetry is that EcoFlow offers nothing out of warranty: on a $1,899 wheeled unit that's an annoyance, on a $7,999 installed one it's a question to ask before you sign the install.
Growth path
DELTA Pro Ultra X
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 12,288Wh.
Accepts up to 10,000W 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 Plus
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 1,000W 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 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 Ultra X's higher solar ceiling (10,000W vs 1,000W) 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 Ultra X
Limited field data on this one, and the gap is worth stating up front: what exists is the manufacturer's own material plus launch reviews, not owners a year inA1A2A3A4. The documented shape of the product is consistent across those sources: 12kW continuous at 120/240V scaling to 12-36kW with surge to 45kWA1, a 12.288kWh base built as two 6,144Wh packsA2, and EV-grade full-tab LFP cells under 24/7 BMS oversight with solar to 10kWA3.
The claim we'd most like owner corroboration on is the install. A quick-connect design said to cut installation time and cost by up to 80% and be ready in about seven days is a vendor numberA4, and installation is exactly where whole-home systems tend to surprise people. Treat the CES 2026 Innovation AwardA4 as evidence the design impressed a jury, not evidence it survived a winter.
“Base config delivers 12kW continuous at 120/240V — enough to power every circuit including a 5-ton AC — scaling to 12-36kW with surge handling to 45kW via Adaptive Start.”
Sources
ecoflow.com · outboundpower.com · bobvila.com · thesolarlab.com
Jackery HomePower 3600 Plus
The field record here is better and it's consistent. Reviews put the unit at about 77 lbs with built-in wheels and a pull handle, and treat that as the headline for the classB2, while the aggregate on Amazon sits at 4.5 out of 5 with ease of use, quiet operation and reliability the recurring notesB4. The 6,000-cycle EV-grade LiFePO4 rating is corroborated in the same coverageB1, which matters because it's the spec doing most of the work in the verdict.
One owner reported riding out a three-day regional blackout by running a fridge, a microwave, string lights, fans and a CPAP for two straight days on a single chargeB3. Take it as encouraging rather than as a planning figure. 3,584Wh across 48 hours is a 75W average, so that account implies a very light fridge duty cycle and not much running alongside it. It's one report, and we'd rather you size from the scenario table than from someone's good week.
“EV-grade LiFePO4 battery rated for 6,000 cycles, giving well over a decade of service life.”
Sources
jackery.com · batteryskills.com · poweraic.com · tipselite3s.com · greattips3s.com · powerelectrichub.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
- Whole-home 12kW output, massive scalability (to 184kWh), EV-grade LFP, 10kW solar, and fast install are the standout features. [DELTA Pro Ultra X · 3 entries]
- Light weight (with wheels), a 6,000-cycle EV-grade battery, quiet reliable operation, and strong owner ratings are the standout praise. [HomePower 3600 Plus · 3 entries]
- A1
“Base config delivers 12kW continuous at 120/240V — enough to power every circuit including a 5-ton AC — scaling to 12-36kW with surge handling to 45kW via Adaptive Start.”
ecoflow.com / outboundpower.com — DELTA Pro Ultra X review · 2026 · [positive]
- A2
“Base 12.288kWh of LFP storage (6,144Wh x 2), expandable to 61.44kWh with one inverter and up to 184.32kWh with three inverters and thirty batteries.”
ecoflow.com / outboundpower.com — DELTA Pro Ultra X · 2026 · [positive]
- A3
“EV-grade full-tab LFP cells with a multi-layer safety architecture and 24/7 BMS oversight; solar charging up to 10kW.”
ecoflow.com / bobvila.com — DELTA Pro Ultra X review · 2026 · [positive]
- A4
“A quick-connect design cuts installation time and cost by up to 80%, ready in about 7 days; a CES 2026 Innovation Award Honoree at a $7,999 base price.”
ecoflow.com / thesolarlab.com — DELTA Pro Ultra X review · 2026 · [positive]
- B1
“EV-grade LiFePO4 battery rated for 6,000 cycles, giving well over a decade of service life.”
jackery.com / batteryskills.com — HomePower 3600 Plus review · 2026 · [positive]
- B2
“About 77 lbs with built-in wheels and a pull handle for easy mobility — light and manageable for a 3.6kWh-class unit.”
jackery.com / poweraic.com — HomePower 3600 Plus review · 2026 · [positive]
- B3
“In a three-day regional blackout, one owner ran a fridge, a microwave, string lights, fans, and a CPAP machine for two straight days on a single charge.”
tipselite3s.com / greattips3s.com — HomePower 3600 Plus owner review · 2026 · [positive]
- B4
“Holds a 4.5-out-of-5 rating on Amazon, with customers consistently praising ease of use, quiet operation, and reliable performance; expandable to a very large bank.”
batteryskills.com / powerelectrichub.com — HomePower 3600 Plus review · 2026 · [positive]
Research compiled August 9, 2026.
Who Should Buy Which
Buy the DELTA Pro Ultra X if you…
- →You can name the 240V circuit. A well pump, a range, central air: 12,000W continuous with 45,000W of surge is specced to carry every circuit including a 5-ton ACA1, and that is the one job on this page the Jackery cannot be talked into.
- →You're building a bank, not buying a battery. One inverter takes the DELTA X to 61.44kWh and three take it to 184.32kWhA2. If your five-year plan has a number in it that starts with a 6, this is the only side of the comparison that can get there.
- →You already have roof-scale solar. A 10,000W input ceiling is the difference between an array that charges the house battery and an array that waits its turn.
Buy the HomePower 3600 Plus if you…
- →You want the outage handled and the money kept. 1,645Wh over eight hours leaves the Jackery at 54% used with a second evening still in the tank, and $6,100 still in your account.
- →The unit has to move. 77.2 lbs on wheels with a pull handle goes up a driveway, into a trunk and out to a campsiteB2. 298.7 lbs stays where it lands.
- →You rent. Nothing about the Jackery needs a panel, an electrician or a landlord's signature, and it leaves with you.
- →You're powering appliances rather than a service panel. Five of the six loads modeled here finish on the cheaper unit, and the sixth is a van.
If neither fits
Two people should close this tab. First, anyone here for a CPAP and a couple of phones: 320Wh a night against 3,046Wh and 10,445Wh of usable storage is nine nights and thirty-two nights respectively, so even the smaller of the two is nine nights of runtime for a one-night job, and you should be looking at the compact end of the category. Second, the van-life buyer at 4,685Wh a day, who is stuck between a Jackery that finishes at 154% of its usable storage and a 298.7-lb system that installs into a building. That buyer wants a bigger battery than the Jackery and a lighter one than this, which means a vehicle house-battery setup rather than either of these boxes.
The Bottom Line
Buy the HomePower 3600 Plus. It finishes five of the six loads on this page, it's rated for nearly twice the cycles, and it's the cheaper unit to own as well as to buy. The one thing it can't do is feed a service panel, and if that isn't what you're shopping for, the DELTA Pro Ultra X is $6,100 spent on headroom that will sit at 16% used every time the lights go out.
The DELTA X isn't overpriced. It's a different product wearing the same category name: 12,000W and 45,000W of surge is a house-scale supply, and if you can point at the circuit it's for, spend the money without flinching. If what you're pointing at is a fridge, a router and a couple of lamps, take the Jackery and keep the change.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the DELTA Pro Ultra X worth five times the price of the HomePower 3600 Plus?
Only if you need 240V panel-level output. Up front it's 65 cents a watt-hour ($7,999 across 12,288Wh) against 45 cents ($1,899 across 3,584Wh), and over the full cycle life the gap widens rather than closes, to nineteen cents a lifetime kilowatt-hour against eight. What the money actually buys is a 12,000W continuous supply at 120/240V with 45,000W of surge, which is a capability the Jackery doesn't have rather than an amount of it.
Can the Jackery HomePower 3600 Plus back up my whole house?
It depends what you're counting, and the honest ceiling is 3,600W continuous with 7,200W of surge. That comfortably covers a fridge, lights, networking, a laptop and a microwave used one at a time, which is what most people mean when they say the power's out. It does not cover central air or a well pump running alongside everything else. The DELTA Pro Ultra X is specced at 12,000W continuous and is described as carrying every circuit including a 5-ton AC.
How many HomePower 3600 Plus units equal one DELTA Pro Ultra X?
Four, on paper, and it's cheaper: 4 x $1,899 is $6,476 for 14,336Wh, more stored energy than the DELTA X's 12,288Wh for $1,523 less. What you don't get is one supply. Four units are four separate 3,600W outputs with four separate cords, so if the goal is a single 240V feed into a transfer switch, stacking small units never arrives.
Which one lasts longer, the EcoFlow or the Jackery?
The Jackery, by a wide margin on cycles: 6,000 against 3,500, which at one full cycle a day works out to 16.4 years against 9.6. The warranties are identical at five years each, so the coverage doesn't offset it. Over their full lives the DELTA X delivers twice the total energy, 43,008 kWh to 21,504, but it asks 4.9 times the price to do it.
Does the EcoFlow's 10,000W solar input actually charge it faster?
Only if you own 10,000W of panels. At its own ceiling each unit refills at its own pace: 12,288Wh at 10,000W is roughly 1.2 hours, 3,584Wh at 1,000W is roughly 3.6. On any shared array under 1,000W the two charge at identical rates, because both are simply taking what the panels produce. The high ceiling matters when the battery bank grows, not on day one.
Brand matchup
EcoFlow vs Jackery: measured across every matchup →Related comparisons
Where to buy
EcoFlow DELTA Pro Ultra X
$7,999.00
$7,999.00 · direct from EcoFlow
Last checked 1 day ago. Prices move — check before you buy.
Jackery HomePower 3600 PlusPick
$1,899.00
$1,899.00 · direct from Jackery
Last checked 1 day ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.