Head-to-head test
EcoFlow DELTA Pro vs Jackery Explorer 500
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
5,338Power Score · The AC & Fridge Zone
$1,599.00 list · direct from EcoFlow
Jackery
Explorer 500
1,497Power Score · Device Hub
$359.00 list · direct from Jackery
Spec deltas
The EcoFlow DELTA Pro (3,600Wh) and Jackery Explorer 500 (518Wh) 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 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's 3,600W inverter has the headroom for a window AC, a full-size fridge, and power tools. The Explorer 500's 500W inverter can't start the heaviest of those — a window AC or a high-surge power tool will trip it. On stamina, the DELTA Pro keeps a fridge alive for roughly 20 hours vs the Explorer 500's 3 hours. The cost? Portability. At 99 lbs, the DELTA Pro is heavy enough to make you think twice about moving it. The Explorer 500 at 13.3 lbs is something one person can actually carry.
Pick the DELTA Pro if your primary use is weekend camping or 8-hour blackout. Go with the Explorer 500 if you primarily need it for cpap overnight. Most buyers stop at the sticker price and miss this: over a full lifespan the DELTA Pro works out to about $0.13/kWh against the Explorer 500's $0.87, a gap that compounds in the DELTA Pro's favor the more you cycle it. 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
With a massive 3,600W output (and 7,200W surge), the DELTA Pro can run high-wattage appliances like space heaters, hair dryers, and electric grills without tripping. Weighing in at 99 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 $0.44 per watt-hour, it's one of the most cost-effective options on the market.
Strengths
- +Larger battery capacity
- +Higher AC output
- +Longer warranty
- +Faster solar charging
- +Rated for 3,500 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$1,240) than the Explorer 500.
- –Significantly heavier (+85.7 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.
Jackery Explorer 500
At 500W, this unit is strictly for personal electronics (phones, laptops) and small CPAP machines. Do not expect to run kitchen appliances. At only 13.3 lbs, it is exceptionally portable. You can easily carry it one-handed to a campsite or tailgating party.
Strengths
- +Costs $1,240 less
- +Lighter by 85.7 lb
Trade-offs
- –Weaker inverter (-3,100W) limits appliance compatibility.
- –Lacks smartphone app control for remote monitoring.
- –Sealed capacity — the DELTA Pro can add batteries to grow past 518Wh; this one can't.
- –Shorter-lived battery — rated for 800 charge cycles vs the DELTA Pro's 3,500, so it wears out sooner.
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
The Explorer 500 runs out of juice. It only has 440Wh usable, but this scenario needs 2,100Wh. The DELTA Pro covers it and still has 64h of phone charging left over.
Battery budget usedlower = more headroom
LOAD Phone Charger 15W×6h · LED Lights 40W×8h · Box Fan 75W×14h · CPAP Machine 40W×16h
SCN-02 · 8 hours · needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
DELTA Pro
The Explorer 500 runs out of juice. It only has 440Wh usable, but this scenario needs 1,645Wh. The DELTA Pro covers it and still has 94h of phone charging left over.
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
Explorer 500
A CPAP is about 40W for eight hours, so both of these cover the night several times over — capacity isn't the question here, and the percentages are a formality. What matters is the box next to your pillow. The Explorer 500 runs at 37dB against the DELTA Pro's 60dB, and at three in the morning that gap is the whole difference between the two.
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
The Explorer 500 runs out of juice. It only has 440Wh usable, but this scenario needs 910Wh. The DELTA Pro covers it and still has 143h of phone charging left over.
Battery budget usedlower = more headroom
LOAD Laptop 60W×8h · External Monitor 30W×8h · Router + Modem 20W×8h · Phone Charger 15W×2h
SCN-05 · 4 hours · needs 670Wh
Tailgate Party
Game day power for the crew
DELTA Pro
The Explorer 500 runs out of juice. It only has 440Wh usable, but this scenario needs 670Wh. The DELTA Pro covers it and still has 159h of phone charging left over.
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 gets through about 65% of it and the Explorer 500 about 9%. This is well outside what either unit is for; the right answer here is a larger station, not a choice between these two.
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 runs 14.9h vs 2.1h.
$1,599 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 0–204hComfort & 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 10, 2026
Verdict: the DELTA Pro, on Power Score margin
These two units are closely matched on individual specs, but our Power Score analysis gives the DELTA Pro the edge with a composite score of 5,338 vs 1,497.
Overall score margin: 5,338 vs 1,497 (+256.6%)
List prices as of July 10, 2026. The links below open EcoFlow's and Jackery's current prices.
$1,599.00 list · direct from EcoFlow
or check the Explorer 500 price$359.00 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): UPS, RV Living, Home Backup, Solar Generator, Food Truck, Apartment Balcony, Camping.
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.
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 Explorer 500 rates 3.3/5 (1st percentile of 19 Compact-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.
DELTA Pro: 99 lbs Is a Commitment
At 99 lbs, this is manageable but not fun to carry. That's heavier than a large checked suitcase. Moving it from your car to a campsite requires some effort and flat terrain.
DELTA Pro: 60dB Under Load
60dB is about as loud as a normal conversation. If you're running a CPAP or sleeping near this unit, the fan noise may be noticeable. Most people find anything above 45dB disruptive for sleep.
Explorer 500: Solar Recharge Takes 7.4h
At 100W max solar input (realistically ~70W in good conditions), recharging the full 518Wh takes roughly 7.4 hours of direct sun. Not practical for daily off-grid use. You'll need a wall outlet or generator for regular recharging.
Explorer 500: No App Control
Without app control, you have to physically walk to the Explorer 500 to check battery level, adjust settings, or monitor power draw. The DELTA Pro lets you do all that from your phone, including getting low-battery alerts.
Explorer 500: Fixed Capacity
The Explorer 500 is sealed at 518Wh — fine if that covers you, but it's the ceiling. By contrast the DELTA Pro can add expansion batteries, so if your needs may climb toward partial-home backup, it has room to grow the Explorer 500 doesn't.
Only the DELTA Pro Has UPS Protection
The DELTA Pro can act as an uninterruptible power supply. Plug your PC, router, or CPAP into it and it switches to battery seamlessly during an outage. The Explorer 500 doesn't have this feature, so connected devices will experience a power interruption.
Warranty Value Comparison
The Explorer 500 gives you 5.6 years of warranty per $1,000 spent, vs the DELTA Pro's 3.1 years. That's 1.8× more coverage per dollar. An underrated factor if you're keeping this unit for years.
Battery Lifespan in Real Years
The DELTA Pro is rated for 3,500 cycles vs 800. In real life: at daily use, that's 9.6 vs 2.2 years. At weekend use (twice a week), it's 34 vs 8 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.
Check DELTA Pro price →or check the Explorer 500 priceOwnership Analysis
What happens after you buy — true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.
Analyst note
The Explorer 500 is cheaper to buy, but the DELTA Pro is cheaper to own. At $0.13/kWh over its lifetime vs $0.87/kWh, the DELTA Pro's higher cycle life and capacity make each dollar go further over the years.
Delivers each lifetime kWh for $0.74 less — check the DELTA Pro price →
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
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 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.
Explorer 500
FIXED CAPACITYFixed at 518Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 100W of solar. Limited to a single portable panel.
Limited ports. You'll likely need a power strip or splitter.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
The Explorer 500 is sealed at 518Wh, which is fine if that covers you. The DELTA Pro starts at 3,600Wh and can grow beyond it with EcoFlow expansion batteries — real headroom the Explorer 500 doesn't have if your needs climb toward partial-home backup.
The Bottom Line
The full picture comes down to this. The DELTA Pro 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 Explorer 500 wins in the scenarios that match your life, it's the right choice regardless of aggregate scores.
If neither the DELTA Pro nor the Explorer 500 feels like the right fit, your power needs probably sit outside what these two target. Use our comparison tool above to explore alternatives that better match your specific wattage and runtime requirements. 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 worth $1,240 more than the Explorer 500?
The short answer: yes, if you'll actually use the extra capability. The DELTA Pro costs $1,240 more, but that premium buys you 3,082Wh more battery capacity (that's 17 extra hours of running a mini-fridge); 3,100W higher AC output (opening the door to more demanding appliances); a longer-lasting battery rated for 3,500 cycles — that's 10 years at daily use; 1,500W faster solar charging for quicker off-grid recovery. On a cost-per-watt-hour basis, you're paying $0.44/Wh vs $0.69/Wh. Factor in cycle life and the math flips: the DELTA Pro costs $0.13/kWh over its lifetime vs $0.87/kWh. The "expensive" unit is actually cheaper to own. For regular use, we'd pay the premium.
How does the 3,082Wh capacity difference actually affect daily use?
The DELTA Pro's 3,600Wh battery keeps a mini-fridge running for roughly 20 hours vs the Explorer 500's 3 hours. Where it really matters: during an 8-hour blackout running your fridge, router, lights, AND charging your phone simultaneously (about 1,645Wh total), the DELTA Pro handles it while the Explorer 500 runs dry. 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'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, or is the Explorer 500 the only portable option?
The Explorer 500 at 13.3 lbs is genuinely grab-and-go. Toss it in a backpack, carry it one-handed to a picnic, take it on a boat. The DELTA Pro at 99 lbs is a different story. It's like carrying a large suitcase full of books. If you're setting up and breaking down camp frequently, this weight difference will exhaust you by day two.
How fast can each unit recharge from solar panels in real conditions?
On paper, the DELTA Pro accepts 1,600W vs the Explorer 500's 100W 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 3.2 hours for the DELTA Pro and 7.4 hours for the Explorer 500. That gap widens on cloudy days, when the DELTA Pro'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's advantage is substantial.
"3,500 vs 800 cycles" — what does that actually mean for me?
In real years: the DELTA Pro (3,500 cycles) lasts 9.6 years at daily use, 34 years at weekend use (twice a week), or 146 years at twice-monthly camping trips. The Explorer 500 (800 cycles): 2.2 years daily, 8 years weekends, or 33 years twice-monthly. What most people miss: hitting the cycle limit doesn't kill your battery. Capacity drops to about 80%. Your 3,600Wh unit becomes a ~2,880Wh unit. Still very usable. For weekend users, both batteries will outlast the warranty by years.
Can I use the DELTA Pro as a home UPS to protect my electronics during blackouts?
Yes. The DELTA Pro has UPS mode with true 0ms switchover (double-conversion). Even hospital-grade equipment won't notice. Plug in your desktop PC, router, NAS, or CPAP machine and it switches to battery seamlessly when the grid drops. The Explorer 500 does not have this feature. Without UPS, a blackout means: your PC reboots (potentially corrupting unsaved work), your NAS may corrupt its drive array, your CPAP alarms and wakes you up, and your security cameras go dark until you manually switch them over. If always-on power protection matters, this is a dealbreaker advantage for the DELTA Pro.
What if I need more capacity than the Explorer 500's 518Wh later?
The Explorer 500 is sealed at 518Wh, so if you expect your needs to climb, the DELTA Pro is the more future-proof pick: it starts at 3,600Wh and adds EcoFlow-compatible batteries without replacing the base unit. That said, "not expandable" isn't a flaw on its own — if 518Wh comfortably covers your loads, the Explorer 500 is a complete unit, not a downgrade.
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 or the Explorer 500?
We'd pay the premium for the DELTA Pro. 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 Explorer 500 is still solid if budget is the priority, but the DELTA Pro will leave you less likely to wish you'd "gone bigger" six months from now. That regret costs more than the price difference.
Where to buy
EcoFlow DELTA ProPick
$1,599.00
$1,599.00 list · direct from EcoFlow
Jackery Explorer 500
$359.00
$359.00 list · direct from Jackery
Prices may vary by retailer and are subject to change.