Head-to-head test
EcoFlow DELTA 3 1000 Air vs DJI Power 500
The cheaper unit here is also the bigger one, so the only question left is whether anything you plug in draws more than 500 watts.
Full profiles: DJI Power 500 →
Written by Ian SchneiderUpdated
Solar & Off-Grid Tester, Station Arena Test Desk
EcoFlow
DELTA 3 1000 Air
2,933Power Score · Appliance Class
No longer sold
EcoFlow has discontinued the DELTA 3 1000 Air — it has left EcoFlow's own store and our price tracking, though remaining retailer stock may linger. Our recommended replacement is the EcoFlow DELTA 3 Classic: the same 1kWh class, with an 1,800W inverter to the Air's 500W.
DELTA 3 Classic · $559.00
$299.00 · direct from DJI
Last checked 1 day ago. Prices move — check before you buy.
Spec deltas
$309 buys 960Wh from EcoFlow. $379 buys 512Wh from DJI. The cheaper box is also the bigger box by 448 watt-hours, and a comparison where price and capacity point the same direction usually ends in the first paragraph.
This one doesn't, because the Air's inverter is rated 500W continuous with an 800W X-Boost mode that only helps on certain loadsA1, while the Power 500 does a flat 1,000W. All that extra EcoFlow energy has to fit through a smaller door. Reviewers have run the DJI at 905W and watched it briefly ride a 1,500W spike above its own ratingB3; the Air won't run a space heater or a hair dryer at allA3.
So the real question isn't which is better value. It's whether anything you plan to plug in draws more than 500 watts. If nothing does, take the EcoFlow and keep the $70. If something does, the EcoFlow isn't cheaper, it's just unable, and the DJI is the only unit on this page for you.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
continuous output
Continuous output, not surge, decides whether a device runs for an hour instead of a second, and that's where the 2x gap actually sits. A load the DJI carries all afternoon is a load the Air refuses to take onA3, and 448 extra watt-hours behind a 500W door buy you nothing on that load.
DELTA 3 1000 Air: 500W continuous, 1,000W surgeDJI Power 500: 1,000W continuous, 1,000W surgeAt 500W continuous the Air won't run a space heater or hair dryerA3
Why it mattersWrite your load list before you compare prices. One item over 500W and the $70 saving is irrelevant.
rated cycles
A thousand extra cycles on a battery half the size still finishes 832 kWh short over the unit's life, and you paid $70 more up front for the shortfall. Eleven cents a lifetime kilowatt-hour against nineteen. Read that once and you don't need it again.
$309 for 960Wh versus $379 for 512Wh3,000 rated cycles versus 4,000Lifetime energy: 2,880 kWh versus 2,048 kWh
Why it mattersAnyone shopping on cost per stored watt-hour can stop here and buy the EcoFlow.
That doesn't flip the verdict but it narrows it sharply. If your whole load is USB-C, a single 100W port is worth more than 448 extra watt-hours, because the EcoFlow makes you carry the brick and burn part of a 500W budget to do what the DJI does natively.
DELTA 3 1000 Air USB-C tops out at 18W; DJI Power 500 does 100WThe Air is built as a desk power-protection device, 10ms switchover to keep a computer, monitor and router aliveA2The Air's inverter budget is 500W total
Why it mattersUSB-C-only desk setups should take the DJI. Anyone whose laptop brick already lives on that desk shouldn't care.
The $0.11-per-kilowatt-hour figure assumes 3,000 cycles actually happen, and outside a two-year window it's you who carries that assumption. The DJI's extra three years is the only thing on this page you can buy to hedge it, and $76 a covered year against $155 is what that hedge costs.
2-year warranty at $309 is $155 per covered year; 5-year at $379 is $76EcoFlow no longer sells the DELTA 3 1000 AirA4EcoFlow offers no parts or service out of warranty
Why it mattersIf you want the box to be somebody else's problem for five years, that alone justifies the $70 premium.
The specific dimensions that decide these two units — everything else is a tie.
Runtime: Will It Power Your Gear?
Selected because: 960Wh behind a 500W inverter against 512Wh behind a 1,000W one is the trade that decides this page.
continuous output
Usable energy lands near 85% of rated, so call it 816Wh in the Air and 435Wh in the Power 500. That's most of a second full charge, and you feel it in the gap between a workday that nearly makes it and one that quits well before lunch: a 910Wh remote-work day is 112% of what the EcoFlow can deliver and 209% of the DJI's.
Runtime only matters if the load starts, though. The Air is rated 500W continuous with an 800W X-Boost mode that helps on some loads and not othersA1, and it still won't take a heater or a dryerA3. Running out of watt-hours means two hours of strong sun at the Air's 500W solar ceiling. Running out of watts means the outlet simply says no.
What the Specs Don't Tell You
Selected because: Five flags fire, and two of them (an 18W USB-C ceiling and two years of warranty against five) change who should buy which.
rated cycles
The 18W USB-C port is the flag that will irritate you daily rather than dramatically. One 100W port on the DJI runs a laptop directly; 18W charges a phone while it's asleep. Everything else routes through the AC outlet and a brick you now have to keep on the desk.
The warranty flag cuts the other way and cuts deeper. Five covered years for $379 is $76 a year; two for $309 is $155. EcoFlow doesn't sell parts or service out of warranty, and on a unit that's left the catalogueA4, year three is where you find out what that means.
Lifetime Value
Selected because: $309 for 960Wh against $379 for 512Wh, and a 4,000-cycle rating that doesn't rescue the smaller battery.
cost / lifetime kWh
The DJI's 4,000-cycle rating is the better number on paper and the worse one in practice, because cycle count only converts to energy through capacity. Over the rated life that's 2,048 kWh from the DJI against 2,880 kWh from the EcoFlow, and the unit that stores less finishes 832 kWh behind while asking $70 more to start.
Cycle ratings are lab figures on both sides, which is the honest caveat to all of this. The three extra years of DJI coverage are the only thing here that hedges the assumption, and that hedge is precisely what the price gap buys.
Your Life, Your Pick
Selected because: Four of the six loads we model overrun both units, which is more useful than the two that split.
Four of the six loads overrun both units, and that's the useful headline. These are a 512Wh box and a 960Wh box. Weekend camping at 2,100Wh, an eight-hour outage at 1,645Wh, van life at 4,685Wh a day: all of those are multiples away, not near misses.
The two that split are worth the read. Tailgate goes to the EcoFlow because 670Wh is 82% of its usable charge and 154% of the DJI's. The overnight CPAP goes to the DJI on the one spec that matters next to a pillow, 25dB against 39dB. Neither result says which unit is better. They say which one is right for one specific evening.
Brand Trust
Selected because: EcoFlow runs the deepest catalogue in portable power; DJI arrived in 2024 with four models and a five-year warranty.
EcoFlow brings 12-15 models plus panels and home panels, and roughly 31,000 people on Reddit who have probably already had your problem. DJI brings four power station models, a 2024 arrival in the category, and a support and repair network built for drones. None of that helps at 9pm when a unit won't switch on. The warranty does, and DJI's is two and a half times longer.
EcoFlow's support record is polarized: prepaid labels and fast swaps at one end, long waits and refurbished replacements for new claims at the other, which is a solid argument for buying through a retailer with its own return window. DJI's power-station support is largely untested, which is not the same as bad. It's just not knowable yet from a company two years into the category.
Strengths & trade-offs
EcoFlow DELTA 3 1000 Air
Strengths
- +Larger battery capacity
- +Faster solar charging
Trade-offs
- –Shorter-lived battery — rated for 3,000 charge cycles vs the Power 500's 4,000, so it wears out sooner.
DJI Power 500
Strengths
- +Costs $10 less
- +Lighter by 5.9 lb
- +Higher AC output
- +Longer warranty
- +Rated for 4,000 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
Neither unit
Neither unit covers this scenario's 2,100Wh: the DELTA 3 1000 Air comes up 1,284Wh short (about 39% covered), the Power 500 1,665Wh (21%). 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 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
Neither unit
An eight-hour outage as we model it wants 1,645Wh, roughly twice what the EcoFlow can give up and nearly four times the DJI's usable stock, so neither carries a house to morning. What the EcoFlow does carry is the desk: a 10ms switchover against the DJI's 20ms, and 960Wh to feed a router and a laptop with while you wait it out.
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
Power 500
The DJI takes this one, and not on capacity, since both clear a 320Wh night without strain. It's 25dB against 39dB, eighteen inches from your ear, for eight hours straight. The catch worth knowing: that single night costs the DJI about three-quarters of its usable charge, so a second night off-grid needs a wall or a panel.
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
Neither unit
A full remote workday runs 910Wh, which is 112% of what the EcoFlow can actually deliver. Missing by a hair is the most annoying way to miss, and it means one wall top-up around mid-afternoon. The DJI misses by more than half a day, so neither of these is an unplugged-office machine.
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 3 1000 Air
The EcoFlow's clean win: 670Wh is 82% of its usable charge, while the DJI would need one and a half of itself to finish the afternoon. One rule attaches to it. Keep every device under the 500W ceiling, because capacity is not the thing that will stop you here.
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
Van life wants 4,685Wh a day. The EcoFlow would need to refill nearly six times over and the DJI nearly eleven, which puts both of them in a different weight class from the question. Buy this pair for a desk, a tent or a tailgate, and shop somewhere else entirely for a van.
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 3 1000 Air runs 4h vs 2.1h.
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 0–54.4hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–10.9hHigh-Draw Appliances
These reveal the real limitsscale 0–0.4h¹ 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 EcoFlow DELTA 3 1000 Air
Take the DELTA 3 1000 Air at $309 unless something on your load list draws more than 500W. It holds 960Wh to the DJI's 512Wh, costs $70 less, accepts 500W of solar input against the DJI's 300W, and switches over in 10ms rather than 20ms. Across rated cycle life that works out to $0.11 per kilowatt-hour against $0.19. Two things you give up are real and you should price them honestly: an 18W USB-C ceiling instead of 100W, and two years of warranty instead of five on a unit EcoFlow no longer sellsA4. If either of those is load-bearing for you, or if you need more than 500W continuous, buy the Power 500 and don't feel bad about it.
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 DJI's current prices.
$309.00 · direct from EcoFlow
or check the Power 500 price$299.00 list
Written by Ian Schneider, Solar & Off-Grid Tester · Station Arena Test Desk · Updated August 9, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
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 3 1000 Air rates 5.0/5 (99th percentile of 20 Compact-class units), and Power 500 rates 4.6/5 (74th percentile of 20 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.
18W is a phone port, not a laptop port
The Air's USB-C tops out at 18W against the Power 500's 100W. Phones and tablets won't notice. A laptop will: it goes back to the AC outlet and its own brick, spending part of a 500W inverter budget on a job the DJI does straight off the port. If your desk has already gone USB-C only, this one flag is worth more than the EcoFlow's 448 extra watt-hours.
Double the headroom, same ceiling
The Air's 1,000W surge is twice its 500W continuous rating; the DJI's 1,000W surge is exactly its continuous rating, with nothing above it. That reads as an EcoFlow advantage, and as a ratio it is. Then you notice both units peak at the same 1,000W, and that the DJI can sit at 1,000W all day while the Air can only touch it. Headroom is a ratio. Watts are watts.
UPS Switchover: ≤10ms vs ≤20ms
Both list a UPS mode, at different rated speeds. The DELTA 3 1000 Air is rated ≤10ms — quick enough on paper that desktop PCs and routers should ride through, treating that as the rating it is. The Power 500 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.
Five covered years against two
$379 spread over five years of coverage is $76 a year. $309 over two is $155. The DJI is the cheaper unit to be wrong about, and that's the strongest argument against the pick this page makes. EcoFlow also doesn't sell parts or service once coverage ends, so on the Air the warranty edge is the real edge.
Battery Lifespan in Real Years
The Power 500 is rated for 4,000 cycles vs 3,000. In real life: at daily use, that's 11 vs 8.2 years. At weekend use (twice a week), it's 38 vs 29 years. One caution reading years across different sizes: a cycle is 512Wh on the Power 500 and 960Wh on the DELTA 3 1000 Air, so count lifetime energy — roughly 2,048 kWh against 2,880 kWh over the rated life. After hitting the cycle limit, the battery doesn't die — it drops to ~80% of original capacity, which is still very usable.
Full record above — the Test Desk pick is the DELTA 3 1000 Air.
Check DELTA 3 1000 Air price →or check the Power 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 Power 500 is cheaper to buy, but the DELTA 3 1000 Air is cheaper to own. At $0.11/kWh over its lifetime vs $0.15/kWh, the DELTA 3 1000 Air's higher cycle life and capacity make each dollar go further over the years. One caution on the lifespan row: the Power 500 takes longer to reach its cycle rating, but a cycle moves a different amount of energy on each unit — the DELTA 3 1000 Air still delivers more over its shorter horizon (2,880 vs 2,048 kWh). Years measure wear, not usefulness.
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. If you ever want the matching panel or a second unit that speaks the same language, EcoFlow already stocks it.
Support
US phone, email and chat, with outcomes that range from a prepaid label and a fast swap to a long wait and a refurbished unit against a new claim. Buying through Costco or Amazon gives you a return path that doesn't depend on which end you land on.
Community
The biggest community in the category, roughly 31,000 on Reddit plus Facebook groups and an official forum. In practice that means your obscure question has usually been asked already.
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
EcoFlow doesn't sell parts or service out of warranty, and coverage here runs two years. Worth noting too: an October 2025 recall on the DELTA Max 2000 for overheating across six incidents. Different unit, different line, but it's who you're buying from.
DJI
Ecosystem
Four power station models and a 2024 arrival, so this is a young line rather than a deep one. What it does have is a drone business behind it and SDC ports that fast-charge DJI batteries, which is worth real money if you already fly and nothing at all if you don't.
Support
Leveraging DJI's established global support and repair center network from the drone business. Generally positive reputation inherited from drone operations, but limited power-station-specific track record.
Community
There isn't a DJI power station community yet. Questions land in r/dji alongside 250,000 people who mostly fly things. For a $379 purchase that's a smaller problem than it sounds, but you won't find your exact issue already solved.
App experience
Rated 3.5/5 iOS and Android (DJI Home app ratings reflect entire DJI ecosystem including drones/cameras, not power-station-specific). Users report the on-device screen is more reliable than the app.
Unique strength
The line publishes 23-30dB, the quiet end of the category, and the battery engineering comes out of a drone operation with 700+ patents in it. Build quality reads premium in a way the price doesn't fully explain.
Worth knowing
No built-in solar charge controller. Panels need DJI's own adapter, which is one more purchase and one more part to lose. The SDC fast-charging advantage is proprietary, so it mostly pays off if you already own DJI gear.
Analyst note
EcoFlow has the catalogue, the community and the accessory shelf. DJI has the warranty, the industrial design and a support network built for drones that hasn't been stress-tested on power stations yet. If the unit never breaks, EcoFlow's depth is the more useful asset. If it breaks in year three, you'll wish you'd bought the five-year one.
Growth path
DELTA 3 1000 Air
FIXED CAPACITYFixed at 960Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 500W of solar. Suitable for a 1-2 panel setup.
Adequate ports for most setups, but heavy users may want a power strip.
Power 500
FIXED CAPACITYFixed at 512Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 300W of solar. Limited to a single portable panel.
Adequate ports for most setups, but heavy users may want a power strip.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Neither expands, and that's no knock on either — each is a complete unit at a fixed size. Buy the capacity that covers your needs now (the DELTA 3 1000 Air gives you the larger ceiling); you can't add to either later.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3 1000 Air
Field material on the Air is thin and skews toward reviews rather than long-term ownership, so treat it as a first impression rather than a verdict. What's there is consistent: a 960Wh LFP unit with a 500W inverter at 22 lbs, deliberately minimal on ports and featuresA1, built as a power-protection device whose 10ms switchover keeps a computer, monitor and router from noticing an outage at allA2. The recurring caution is the one the spec sheet already implies, that 500W continuous rules out a space heater or a hair dryer, and the unit was never pretending otherwiseA3.
The other thing worth knowing is catalogue status rather than hardware: EcoFlow has stopped selling the Air, and their closest equivalent is the standard DELTA 3 at 1,024Wh and 1,800W for around $549A4.
“A 960Wh LiFePO4 unit with a 500W inverter (800W X-Boost) weighing only 22 lbs — a focused, minimalist design with fewer ports and features.”
Sources
thesolarlab.com · batteryskills.com · backuppowerhub.com · matanich.com
DJI Power 500
The Power 500 tests better than its own spec sheet. Reviewers ran it at 905W and watched it briefly hold a 1,500W spike well above its 1,000W rating, and found it more efficient in testing than DJI's larger Power 1000B3. The cells are automotive-grade LFP rated to 3,000-4,000 cycles, which is where the ten-year framing comes fromB1, and at about 7.3 kg it's a genuine one-hand carryB2.
The one consistent complaint isn't about the hardware at all. It ships with a wall plug and nothing else: no solar adapter, no car cableB4. Budget for those separately if either is part of your plan.
“A 512Wh LFP battery with up to 1,000W output; the automotive-grade LFP cells are rated up to 3,000-4,000 cycles for roughly a 10-year lifespan.”
Sources
dji.com · thesolarlab.com · techradar.com · views-sounds.com · t3.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
- A focused home-office UPS unit — LFP, 10ms UPS, quiet and light — but low 500W output; now discontinued in favor of the DELTA 3. [DELTA 3 1000 Air · 3 entries]
- Light, efficient LFP unit with strong real-world output and drone-pilot appeal; the caveat is minimal included accessories. [Power 500 · 3 entries]
- A1
“A 960Wh LiFePO4 unit with a 500W inverter (800W X-Boost) weighing only 22 lbs — a focused, minimalist design with fewer ports and features.”
thesolarlab.com / batteryskills.com — DELTA 3 1000 Air review · 2026 · [mixed]
- A2
“Built as a power-protection device with a 10ms UPS switchover to keep a computer, monitor, and router running through outages.”
backuppowerhub.com — DELTA 3 1000 Air review · 2026 · [positive]
- A3
“With only 500W continuous output, it won't run a space heater or hair dryer — it's built for low-to-moderate draw devices.”
backuppowerhub.com / matanich.com — DELTA 3 1000 Air review · 2026 · [mixed]
- A4
“EcoFlow no longer sells the DELTA 3 1000 Air; the closest successor is the standard DELTA 3 (1,024Wh LFP, 1,800W output, ~$549).”
backuppowerhub.com — DELTA 3 line · 2026 · [mixed]
- B1
“A 512Wh LFP battery with up to 1,000W output; the automotive-grade LFP cells are rated up to 3,000-4,000 cycles for roughly a 10-year lifespan.”
dji.com / thesolarlab.com — Power 500 review · 2026 · [positive]
- B2
“Weighs only about 7.3 kg, making it easy to transport.”
dji.com / techradar.com — Power 500 review · 2026 · [positive]
- B3
“In testing it ran a 905W load and briefly handled a 1,500W surge above its 1,000W rating; reviewers found it outperformed the larger DJI Power 1000 in efficiency testing.”
thesolarlab.com / views-sounds.com — Power 500 review · 2026 · [positive]
- B4
“Reviews are positive overall, though one noted it ships with only a wall plug — no solar adapters or car-charging cables included.”
t3.com / techradar.com — Power 500 review · 2026 · [mixed]
Research compiled August 9, 2026.
Who Should Buy Which
Buy the DELTA 3 1000 Air if you…
- →You want a desk that doesn't notice the power went out. Router, modem, monitor and a laptop that already carries its own brick, held up by a 10ms switchover, so the machine never reboots and you never lose what you were typingA2.
- →You want the most stored energy per dollar in this bracket and nothing on your list draws over 500W. $309 for 960Wh is the entire pitch, and it's a good one.
- →You refill from panels. 500W of solar input against the DJI's 300W, with no proprietary adapter to buy before the first sunny day.
This is you — check the DELTA 3 1000 Air price
Buy the Power 500 if you…
- →Something on your list sits between 500W and 1,000W. This is the only one of the two that will start it, and the argument ends right there.
- →Your desk is all USB-C. One 100W port charges the laptop directly instead of sending it back through the inverter and a brick.
- →You'd rather pay $76 a covered year than $155 and have the thing be someone else's problem for five years instead of two.
- →You sleep beside it. 25dB against 39dB, eight hours a night, every night.
- →You already fly DJI. The SDC ports fast-charge drone batteries, and nothing else in this comparison does.
If neither fits
If your list has a fridge running overnight, a real house blackout, or a van in it, close this tab cheerfully. Van life alone wants 4,685Wh a day, 574% of what the EcoFlow can actually deliver, and a weekend of camping at 2,100Wh isn't much kinder. You want something past 1,000Wh with an inverter in the 1,800W class, and if you like EcoFlow, that's their own standard DELTA 3 at around $549A4.
The Bottom Line
Buy the DELTA 3 1000 Air. It costs $70 less and holds nearly twice the energy, and in a category where price and capacity almost never point the same way, that's the whole argument. Over rated life it's eleven cents a kilowatt-hour against nineteen, and the DJI's higher cycle count never closes the gap because a smaller battery turning more times still stores less.
Check your load list before you order, though. Anything above 500 watts is a device the EcoFlow won't run at any price, and that single number is the only thing on this page with the authority to overrule the value math. Laptop, router, fan, CPAP? Stop reading and buy the EcoFlow. Something heavier on the list, or a five-year warranty you actually want? Buy the DJI, or go a size up and buy neither.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the DJI Power 500 worth $70 more than the EcoFlow DELTA 3 1000 Air?
Only for two reasons, and they're both good ones: something on your load list draws more than 500W, or the five-year warranty is what you're actually buying. On energy per dollar it isn't close. $309 buys 960Wh from the EcoFlow and $379 buys 512Wh from the DJI.
Can the DELTA 3 1000 Air run a space heater or a hair dryer?
No. It's rated 500W continuous, with an 800W X-Boost mode that only applies to certain loads, and it won't carry a heater or a dryer. The DJI Power 500 does a flat 1,000W and has been run at 905W in testing, so that's the one to buy if high-draw appliances are on your list.
Which of these is better for a CPAP?
The DJI, on noise. Both clear a 320Wh night comfortably, but 25dB against 39dB is the spec that matters when the unit is next to your pillow. The trade-off is that a single night uses about 74% of the DJI's usable charge against 39% of the EcoFlow's, so if you're off-grid for two nights without a recharge, the EcoFlow is the one that makes it.
Is the EcoFlow DELTA 3 1000 Air discontinued?
Yes. EcoFlow no longer sells it, and their closest current unit is the standard DELTA 3 at 1,024Wh and 1,800W for about $549. It matters mainly at the warranty edge: coverage runs two years, and EcoFlow doesn't sell parts or service out of warranty, so plan on year three being your own responsibility.
Can either of these be expanded with extra batteries?
Neither one expands, and that's fine. Both are complete units at a fixed size, so buy the capacity you need on day one. The EcoFlow's ceiling is 960Wh and the DJI's is 512Wh, and nothing you add later changes that.
Check DELTA 3 1000 Air price →
Brand matchup
EcoFlow vs DJI: measured across every matchup →Where to buy
EcoFlow DELTA 3 1000 AirPick
$309.00
$309.00 · direct from EcoFlow
DJI Power 500
$299.00
$299.00 · direct from DJI
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