Head-to-head test
EcoFlow DELTA Pro Ultra vs Jackery HomePower 3600 Pro Max
Real-world runtimes, scenario verdicts, and ownership costs compared — which wins for your use case.
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
EcoFlow
DELTA Pro Ultra
8,583Power Score · The AC & Fridge Zone
$4,099.00 list · direct from EcoFlow
Jackery
HomePower 3600 Pro Max
5,347Power Score · The AC & Fridge Zone
$1,799.00 list · direct from Jackery
Spec deltas
The EcoFlow DELTA Pro Ultra (6,144Wh) and Jackery HomePower 3600 Pro Max (3,584Wh) sit in different weight classes. The real question: do your power needs justify the larger unit, or would you be overpaying for capacity that sits unused? The DELTA Pro Ultra has a slight edge, but the margin is close enough that your use case should break the tie.
What the spec gap means in practice: the DELTA Pro Ultra's 7,200W inverter can run a window AC unit, a full-size fridge, or power tools. The HomePower 3600 Pro Max's 4,000W inverter will flat-out refuse to start those appliances. On stamina, the DELTA Pro Ultra keeps a fridge alive for roughly 35 hours vs the HomePower 3600 Pro Max's 20 hours. The cost? Portability. At 181.8 lbs, the DELTA Pro Ultra is a two-person lift you set down once and leave. The HomePower 3600 Pro Max at 73.9 lbs is more manageable, though still not light.
Pick the DELTA Pro Ultra if your primary use is weekend camping or 8-hour blackout. Go with the HomePower 3600 Pro Max if you need the heavier-duty specs for demanding loads. Most buyers overlook this: the HomePower 3600 Pro Max costs ~$0.08/kWh over its full lifespan, which adds up significantly over years of regular use. Keep scrolling for the full breakdown. The scenario verdicts below hold a few surprises.
Bench Notes
What each unit does well, where it falls short, and the trade-offs that matter.
EcoFlow DELTA Pro Ultra
With a massive 7,200W output (and 10,800W surge), the DELTA Pro Ultra can run high-wattage appliances like space heaters, hair dryers, and electric grills without tripping. Weighing in at 181.8 lbs, this is not a unit you want to carry far. It's best suited as a stationary backup or RV companion.
Strengths
- +Larger battery capacity
- +Higher AC output
- +Longer warranty
- +Faster solar charging
Trade-offs
- –Substantially more expensive (+$2,300) than the HomePower 3600 Pro Max.
- –Significantly heavier (+108 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
Jackery HomePower 3600 Pro Max
With a massive 4,000W output (and 8,000,240W surge), the HomePower 3600 Pro Max can run high-wattage appliances like space heaters, hair dryers, and electric grills without tripping. Weighing in at 73.9 lbs, this is not a unit you want to carry far. It's best suited as a stationary backup or RV companion. A standout feature is the value proposition: at roughly $0.50 per watt-hour, it's one of the most cost-effective options on the market.
Strengths
- +Costs $2,300 less
- +Lighter by 108 lb
Trade-offs
- –Weaker inverter (-3,200W) limits appliance compatibility.
Will It Power Your Gear?
Scenario math and per-appliance runtimes, modeled from the spec record.
Scenario verdicts
We ran the math on six real-world scenarios. Here's which unit survives your actual life.
SCN-01 · 2 nights · needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
DELTA Pro Ultra
The HomePower 3600 Pro Max cuts it close at 69%. One cold night or an unexpected device and you're rationing power. The DELTA Pro Ultra finishes at 40%, leaving real headroom for spontaneous use. If you camp in variable weather, that buffer keeps you relaxed instead of checking your battery app every 20 minutes.
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
Both survive, but the DELTA Pro Ultra finishes at just 31% used. That's enough reserve for a second blackout night. The HomePower 3600 Pro Max at 54% leaves little margin if the outage runs longer than expected. In storm-prone areas, that remaining capacity is insurance.
Battery budget usedlower = more headroom
LOAD Fridge 150W×8h · Router + Modem 20W×8h · LED Lights (4 bulbs) 40W×6h · Phone Charger 15W×3h
SCN-03 · 8 hours · needs 320Wh
CPAP Overnight
Sleep therapy without interruption — the #1 medical use case
Either unit
Both are wildly overqualified for CPAP. You're using 11% or less. Save your money and buy whichever is cheaper; the extra capacity is completely wasted on a 40W overnight load. Put the savings toward a second battery for multi-night trips.
Battery budget usedlower = more headroom
LOAD CPAP Machine 40W×8h
SCN-04 · 8 hours · needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
DELTA Pro Ultra
The DELTA Pro Ultra gives you a comfortable buffer at 17%. Enough to work late, join extra video calls, or charge a second device without worry. The HomePower 3600 Pro Max at 30% works but leaves less room for the unexpected. For daily remote work, that peace of mind matters.
Battery budget usedlower = more headroom
LOAD Laptop 60W×8h · External Monitor 30W×8h · Router + Modem 20W×8h · Phone Charger 15W×2h
SCN-05 · 4 hours · needs 670Wh
Tailgate Party
Game day power for the crew
Either unit
Both handle game day easily. Since capacity isn't the deciding factor, consider weight: the lighter unit is easier to load into a truck bed. Also check if either has Bluetooth speaker-level noise. Fan sound matters in social settings.
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
The HomePower 3600 Pro Max runs out of juice. It only has 3,046Wh usable, but this scenario needs 4,685Wh. The DELTA Pro Ultra covers it and still has 36h of phone charging left over.
Battery budget usedlower = more headroom
LOAD Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h
The Load Test
RUNTIME = (Wh × 0.85) ÷ LOAD
None of the six scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.
Essentials
Comfort & Convenience
High-Draw Appliances
Test duration
8h
Continuous draw
205W
Projected runtime
For this load: DELTA Pro Ultra runs 25.5h vs 14.9h.
$4,099 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 0–348.2hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–69.6hHigh-Draw Appliances
These reveal the real limitsscale 0–5.2h¹ 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
July 10, 2026
Verdict: the DELTA Pro Ultra, on Power Score margin
These two units are closely matched on individual specs, but our Power Score analysis gives the DELTA Pro Ultra the edge with a composite score of 8,583 vs 5,347.
Overall score margin: 8,583 vs 5,347 (+60.5%)
List prices as of July 10, 2026. The links below open EcoFlow's and Jackery's current prices.
$4,099.00 list · direct from EcoFlow
or check the HomePower 3600 Pro Max price$1,799.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated July 10, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): Solar Generator, Tailgating.
Full specifications
| Specification | DELTA Pro Ultra★ Our pick | HomePower 3600 Pro Max |
|---|---|---|
| Price | $4,099.00 Check latest price | $1,799.00 Check latest price |
| Capacity (Wh) | 6144 | 3584 |
| Output (W) | 7200 | 4000 |
| Surge Peak | 10800W | 8000W (240V) |
| AC Outlets | 3 | 3 |
| USB-C Charging Outputs | 100W | 100W |
| Solar Input (W) | 5600 | Not Specified |
| Weight (lbs) | 181.8 | 73.85 |
| UPS | Yes (0ms) | Yes (<10ms) |
| Charging Cycles | 3500 | 6000 |
| Chemistry | LiFePO4 | LiFePO4 |
| Warranty (Years) | 10 | 5 |
| Battery Expansion Feasibility | Yes | Yes |
| App Control | Yes | Yes |
| $/Watt Hour | $.67 | $.50 |
| Noise Level (db) | <30 | 30 |
| Solar Input Type | MC4 | 36.4-50.4V (126A) |
| USB-A Ports | 2 | 1 |
| USB-C Ports | 2 | 1 |
| Cost per Whᵈ | $0.67/Wh | $0.50/Wh |
ᵈ Derived: price ÷ rated capacity.
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.
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.
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 Ultra (181.8 lbs) is firmly a two-person lift. It goes where you put it and stays there. That's a 108 lb difference, which you'll feel every time you relocate.
Surge Power: Inverter Quality Indicator
The HomePower 3600 Pro Max has a 2× surge-to-continuous ratio vs the DELTA Pro Ultra's 1.5×. A higher ratio (≥2×) means the inverter handles motor startup surges better. That's critical for fridges, AC compressors, and power tools that briefly draw 2-3× their rated wattage. The DELTA Pro Ultra may trip when starting these appliances even though its continuous wattage looks sufficient.
UPS Speed: true uninterruptible (0ms) vs line-interactive (<10ms)
The DELTA Pro Ultra switches to battery in 0ms (true uninterruptible (0ms)), while the HomePower 3600 Pro Max takes 10ms (line-interactive (<10ms)). Even the most sensitive equipment (NAS arrays, medical devices) won't notice the switch. This matters if you're using it as a home UPS for always-on equipment.
Battery Lifespan in Real Years
The HomePower 3600 Pro Max is rated for 6,000 cycles vs 3,500. In real life: at daily use, that's 16.4 vs 9.6 years. At weekend use (twice a week), it's 58 vs 34 years. After hitting the cycle limit, the battery doesn't die. It drops to ~80% original capacity, which is still very usable.
Full record above — the Test Desk pick is the DELTA Pro Ultra.
Check DELTA Pro Ultra price →or check the HomePower 3600 Pro Max 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.
| Metric | DELTA Pro Ultra | HomePower 3600 Pro Max |
|---|---|---|
| Purchase price | $4,099.00 | $1,799.00 |
| Lifetime energy delivery | 21,504 kWh | 21,504 kWh |
| Cost per lifetime kWh | $0.19 | $0.08 |
| Cost per warranty year | $410/yr | $360/yr |
| Battery lifespan | 9.6yr daily · 33.7yr weekends · 67.3yr weekly | 16.4yr daily · 57.7yr weekends · 115.4yr weekly |
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.
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. Supports up to 180kWh modular expansion with DELTA Pro Ultra X.
Worth knowing
The Oct 2025 DELTA Max 2000 recall (overheating/fire risk, 6 incidents) is worth noting. Also 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
Slowest to adopt LFP batteries (some models still use older NMC chemistry with shorter lifespan). 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 Pro Ultra
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 6,144Wh.
Accepts up to 5,600W 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.
No solar input available.
Limited ports. You'll likely need a power strip or splitter.
Expansion batteries are Jackery-specific. You're investing in the Jackery ecosystem.
Analyst note
Both expand, but the DELTA Pro Ultra's higher solar ceiling (5,600W vs 0W) gives it the stronger off-grid growth path — more panels can feed a bigger bank as it grows.
The Bottom Line
The full picture comes down to this. The DELTA Pro Ultra edges ahead on our overall analysis, but the margin is narrow enough that your specific use case should drive the decision. Review the scenario verdicts above — if the HomePower 3600 Pro Max wins in the scenarios that match your life, it's the right choice regardless of aggregate scores.
If neither the DELTA Pro Ultra nor the HomePower 3600 Pro Max feels like the right fit, your power needs probably sit outside what these two target. For lighter use — weekend camping or phone/laptop charging — you'd be overpaying for capacity you'll rarely tap. Consider a unit in the 500–1,500Wh range instead. Prices on portable power stations fluctuate frequently. Both EcoFlow and Jackery discount regularly, so check the current price before committing. Prime Day and Black Friday pricing typically drops 20-30%.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the DELTA Pro Ultra worth $2,300 more than the HomePower 3600 Pro Max?
The short answer: yes, if you'll actually use the extra capability. The DELTA Pro Ultra costs $2,300 more, but that premium buys you 2,560Wh more battery capacity (that's 15 extra hours of running a mini-fridge); 3,200W higher AC output (opening the door to more demanding appliances); 5,600W faster solar charging for quicker off-grid recovery. On a cost-per-watt-hour basis, you're paying $0.67/Wh vs $0.50/Wh. For regular use, we'd pay the premium.
How does the 2,560Wh capacity difference actually affect daily use?
The DELTA Pro Ultra's 6,144Wh battery keeps a mini-fridge running for roughly 35 hours vs the HomePower 3600 Pro Max's 20 hours. Both can handle a full 8-hour blackout setup (fridge + router + lights + phone charging ≈ 1,645Wh), but the DELTA Pro Ultra finishes with significantly more margin. That matters if conditions aren't ideal or the outage runs long. What specs don't mention: runtime drops 20-30% in cold weather (below 32°F/0°C) as battery chemistry slows down. The DELTA Pro Ultra's extra capacity provides a critical cold-weather buffer. For occasional phone and laptop charging, both are overkill. This gap only matters for sustained, multi-appliance use.
Can I actually carry the DELTA Pro Ultra, or is the HomePower 3600 Pro Max the only portable option?
Neither is "portable" in any hiking sense. The HomePower 3600 Pro Max (73.9 lbs) and the DELTA Pro Ultra (181.8 lbs) are both appliances you place and leave. The 108-lb difference matters when loading into a vehicle or moving between rooms, but that's about it. If true portability is your priority, look at units under 20 lbs in a different class entirely.
How fast can each unit recharge from solar panels in real conditions?
On paper, the DELTA Pro Ultra accepts 5,600W vs the HomePower 3600 Pro Max's 0W of solar input. What the spec sheet won't tell you: solar panels typically deliver only 60-80% of their rated output due to panel angle, cloud cover, and temperature. In realistic conditions, expect full recharge in about 1.6 hours for the DELTA Pro Ultra and N/A hours for the HomePower 3600 Pro Max. That gap widens on cloudy days, when the DELTA Pro Ultra's higher input ceiling captures more of whatever sunlight is available. One more thing: summer gives you ~7 productive solar hours per day. Winter drops to ~4. If solar is your primary recharge method, the DELTA Pro Ultra's advantage is substantial.
"6,000 vs 3,500 cycles" — what does that actually mean for me?
In real years: the HomePower 3600 Pro Max (6,000 cycles) lasts 16.4 years at daily use, 58 years at weekend use (twice a week), or 250 years at twice-monthly camping trips. The DELTA Pro Ultra (3,500 cycles): 9.6 years daily, 34 years weekends, or 146 years twice-monthly. What most people miss: hitting the cycle limit doesn't kill your battery. Capacity drops to about 80%. Your 3,584Wh unit becomes a ~2,867Wh unit. Still very usable. For weekend users, both batteries will outlast the warranty by years.
Is EcoFlow or Jackery more reliable for long-term ownership?
Both brands have strengths and trade-offs. EcoFlow: Mixed. 2-5 years depending on model (DELTA Pro Ultra line gets 10 years). Some users report smooth claims; others report runarounds. Register your product to extend coverage. Jackery: 2-5 years depending on model (premium models like 5000 Plus get 5 years, budget models get 2 years). Registration required for extension. Claims process can be frustrating. One piece of advice from the power station community: regardless of brand, buy from Costco or Amazon. Their return policies provide a safety net that manufacturer warranties alone can't match, especially for a product you'll rely on in emergencies. Both brands use LFP (lithium iron phosphate) batteries in their current lineup, the most proven chemistry for longevity and safety.
Bottom line: should I buy the DELTA Pro Ultra or the HomePower 3600 Pro Max?
We'd pay the premium for the DELTA Pro Ultra. Yes, it costs more. The capability jump is real: you're stepping into a tier that handles appliances the base model can't start. The HomePower 3600 Pro Max is still solid if budget is the priority, but the DELTA Pro Ultra will leave you less likely to wish you'd "gone bigger" six months from now. That regret costs more than the price difference.
Related comparisons
Where to buy
EcoFlow DELTA Pro UltraPick
$4,099.00
$4,099.00 list · direct from EcoFlow
Jackery HomePower 3600 Pro Max
$1,799.00
$1,799.00 list · direct from Jackery
Prices may vary by retailer and are subject to change.