Head-to-head test
EcoFlow RIVER 3 PLUS vs DJI Power 500
The RIVER 3 PLUS is lighter, cheaper today, and the only one that grows past its box — but the Power 500 hands you nearly double the base capacity and output for $80 more, and runs a CPAP through the night the RIVER can't.
Written by Wenny ZhengUpdated
Portable Power Tester, Station Arena Test Desk
EcoFlow
RIVER 3 PLUS
1,917Power Score · Device Hub
$259.00 list · direct from EcoFlow
DJI
Power 500
2,341Power Score · Appliance Class
$299.00 list · direct from DJI
Spec deltas
The DJI Power 500 packs 512Wh into its sealed box; the EcoFlow RIVER 3 PLUS starts at 286Wh and can grow to 858Wh with add-on batteries. That single contrast — a bigger fixed tank against a smaller one that expands — is the whole decision here.
At the price you pay today, the DJI is the more unit: $359 for nearly double the RIVER's base capacity and a 1,000W continuous output against 600W. It's rated for 4,000 charge cycles to the RIVER's 3,000, which is why it comes out cheaper per lifetime kilowatt-hour despite the $80 higher sticker. And its 512Wh clears a CPAP night the RIVER's 286Wh base can't quite reach.
The RIVER's case isn't weight alone, though it's real there too — 10.4 lbs against 16.1, a genuine one-hand-with-room difference. It's $80 cheaper to get in the door, switches to battery in 10 milliseconds against the DJI's 20, and it's the only unit on this page that isn't a dead end: bolt on an EB300 or EB600 and you pass the DJI's ceiling entirely. Whether that flexibility is worth giving up half your starting capacity is the question.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
continuous output
That's the crossover most shoppers miss: the RIVER wins the sticker price, but the DJI wins the price-per-capability, and it's the DJI's 4,000 cycles against 3,000 that carry it to a lower cost per lifetime kilowatt-hour too — 18 cents against 33.
RIVER 3 PLUS: 286Wh base, 600W continuous, $279Power 500: 512Wh base, 1,000W continuous, $359
Why it mattersA buyer who wants the most box for the money out of the gate should take the DJI; the RIVER only leads if the lowest entry price is the hard constraint.
Capacity
This is the one scenario where the capacity gap stops being abstract and starts being a machine that shuts off at 4 a.m. — the DJI runs the night with reserve to spare, while the base RIVER runs out before morning unless you've already bought an expansion battery to cover the gap.
CPAP overnight draw: about 320WhRIVER 3 PLUS base capacity: 286Wh; Power 500: 512Wh
Why it mattersAnyone buying this specifically for CPAP or medical backup should take the DJI, or budget for the RIVER's add-on battery from the start.
weight
So the RIVER's expansion is the genuine article, not the lead-acid kind that gives capacity back — but you reach that 858Wh only by buying a second battery, and by then you've spent past the DJI's price for a capability you may or may not use. The DJI's answer is that its 512Wh is just there, in one 16.1-lb box, no upsell.
RIVER 3 PLUS: expandable to 858Wh; 10.4 lbsPower 500: sealed at 512Wh; 16.1 lbs
Why it mattersExpandability is worth paying for only if you know your needs will grow; if 512Wh already covers you, the DJI's fixed tank is the simpler, cheaper ceiling.
The specific dimensions that decide these two units — everything else is a tie.
PowerScore Breakdown
Selected because: the DJI's near-double base capacity and output is the headline; the RIVER's surge ratio is the counterpoint
overall power score
The DJI leads because it starts bigger and pushes harder: 512Wh against 286Wh and 1,000W continuous against 600W. In practice that's the difference between a unit that shrugs at a microwave and one that's already near its limit running it.
The RIVER's counter is its inverter's surge profile — a 2x surge-to-continuous ratio (1,200W X-Boost over 600W) against the DJI's flat 1x. For a tool or pump that spikes hard at startup then settles, the RIVER actually has more launch headroom, even as the DJI wins every sustained draw.
Growth Path
Selected because: the RIVER's expansion to 858Wh is its single strongest card and clears the DJI's fixed ceiling
solar input
This is the RIVER's section to win, and it does: it takes EcoFlow expansion batteries and climbs to 858Wh, well past anything the sealed Power 500 can reach. The DJI is what it is on the day you buy it — outgrow 512Wh and your only path is a second unit.
The honest asterisk is that the growth isn't free. The RIVER's 858Wh ceiling arrives only after you've bought an add-on battery, and by then you've spent more than the DJI costs. Expansion earns its keep if you're fairly sure you'll need it; if you're not, you've paid a small premium in base capacity for an option you never exercise.
Portability & Form Factor
Selected because: 10.4 vs 16.1 lbs is a real, felt gap and the RIVER's clearest everyday win
weight
At 10.4 lbs the RIVER is 5.7 lbs lighter than the 16.1-lb DJI, and that's the kind of gap you feel on a trail, in and out of a trunk, or handed up into a loft. For a backpacker or a one-bag traveler, this is the RIVER's most persuasive argument.
The catch is that the light unit is also the small one. Some of that weight savings is simply the 226Wh of battery the DJI is carrying that the RIVER isn't. Lighter and smaller are the same coin here, not two separate wins.
Lifetime Value
Selected because: cheaper sticker vs cheaper per kWh — the two value metrics point different directions and both deserve honest airing
cost / lifetime kWh
The two value stories genuinely diverge. On upfront price the RIVER wins outright — $279 against $359, and $56 per warranty year against $72. If the money in your pocket today is what's tight, that's a real edge.
On energy delivered over the battery's life, the DJI flips it: 18 cents per lifetime kilowatt-hour against 33, because 4,000 cycles on a bigger battery deliver far more total energy than 3,000 on a smaller one. Cheaper to buy, or cheaper to run — pick the metric that matches how long you'll keep it.
Strengths & trade-offs
EcoFlow RIVER 3 PLUS
Strengths
- +Costs $40 less
- +Lighter by 5.7 lb
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
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
- +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 can fully handle this scenario (needs 2,100Wh). You'd need a higher-capacity station or to cut back on usage.
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
Neither unit can fully handle this scenario (needs 1,645Wh). You'd need a higher-capacity station or to cut back on usage.
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 RIVER 3 PLUS runs out of juice. It only has 243Wh usable, but this scenario needs 320Wh. The Power 500 covers it and still has 8h of phone charging left over.
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
Neither unit can fully handle this scenario (needs 910Wh). You'd need a higher-capacity station or to cut back on usage.
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
Neither unit
Neither unit can fully handle this scenario (needs 670Wh). You'd need a higher-capacity station or to cut back on usage.
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 can fully handle this scenario (needs 4,685Wh). You'd need a higher-capacity station or to cut back on usage.
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: Power 500 runs 2.1h vs 1.2h.
$299 list · direct from DJI
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 0–29hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–5.8hHigh-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
July 16, 2026
Verdict: the Power 500, on Power Score margin
Out of the box the Power 500 is the bigger, stronger unit: 512Wh against the RIVER's 286Wh, 1,000W continuous against 600W, and enough reserve to run a CPAP overnight where the RIVER's base battery falls short. It's also cheaper per lifetime kilowatt-hour thanks to 4,000 cycles against 3,000. The RIVER answers with real strengths — 5.7 lbs lighter, $80 cheaper today, a quicker switchover, and the only expansion path here, growing to 858Wh past the DJI's fixed ceiling. If you want the most capable single box for the money, buy the DJI. If minimal weight, lowest entry price, or growing later matters more, the RIVER is a legitimate pick, not a consolation one.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 16, 2026. The links below open EcoFlow's and DJI's current prices.
$299.00 list · direct from DJI
or check the RIVER 3 PLUS price$259.00 list
Written by Wenny Zheng, Portable Power Tester · Station Arena Test Desk · Updated July 16, 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, RIVER 3 PLUS rates 5.0/5 (99th percentile of 22 Personal-class units), and Power 500 rates 4.4/5 (67th 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.
The DJI Is a Sealed Ceiling
The Power 500's 512Wh is all it will ever hold — outgrow it and the upgrade path is a second unit. The RIVER 3 PLUS takes expansion batteries up to 858Wh, so if there's any chance your needs grow, that's a real advantage worth weighing against the DJI's larger starting capacity.
The RIVER Starts Motors More Easily
The RIVER 3 PLUS surges to 1,200W from a 600W base — a 2x ratio that handles the startup spike of fridges, pumps, and power tools. The Power 500 rates 1,000W both continuous and surge, a flat 1x, so it sustains more but bursts no higher than it already runs. For motor startup, the lighter RIVER is the more forgiving unit.
RIVER Switches Over Twice as Fast
The RIVER 3 PLUS flips to battery in 10 milliseconds against the Power 500's 20 — both fine for a desktop or router, but the RIVER's is the safer margin for always-on gear riding through blips.
RIVER Costs Less Per Covered Year
Both carry a 5-year warranty, but the RIVER's lower price makes it $56 per covered year against the DJI's $72. On upfront value the RIVER leads; the DJI's answer is that its extra cycles make it cheaper per unit of energy over the long haul.
The DJI's Battery Lasts Longer
The Power 500 is rated for 4,000 cycles against the RIVER's 3,000 — roughly 11 years of daily use versus 8. Neither battery dies at the limit; both settle to about 80% capacity and keep going. But the DJI's extra cycles are the main reason it comes out cheaper per lifetime kilowatt-hour.
Full record above — the Test Desk pick is the Power 500.
Check Power 500 price →or check the RIVER 3 PLUS 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 RIVER 3 PLUS is cheaper to buy, but the Power 500 is cheaper to own. At $0.15/kWh over its lifetime vs $0.3/kWh, the Power 500's higher cycle life and capacity make each dollar go further over the years.
Delivers each lifetime kWh for $0.15 less — check the Power 500 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
EcoFlow has the deepest lineup and the fastest innovation cadence in portable power, the largest owner community, and X-Stream fast charging across the range.
Worth knowing
The October 2025 DELTA Max 2000 recall over overheating is worth noting, and EcoFlow offers no out-of-warranty parts or service.
DJI
Ecosystem
New entrant (2024) — 4 power station models: Power 500, Power 1000 V2, Power 1000 Mini, Power 2000
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
No dedicated power station community yet. Discussions happen within r/dji (~250K members, mostly drone users). Very small power-specific presence on Facebook and forums.
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
DJI brings hundreds of battery patents from its drone business, builds some of the quietest units in the category, and backs them with an established global repair network.
Worth knowing
It's only about two years into power stations, with no dedicated owner community yet and, notably here, no expansion-battery ecosystem at all.
Analyst note
EcoFlow is the mature ecosystem with an expansion path and a huge community; DJI is the newer entrant with quieter hardware and a bigger fixed battery. For a buyer who wants room to grow, EcoFlow's ecosystem is the safer long-term bet; for one who wants the most capable single unit today, the DJI's engineering wins.
Growth path
RIVER 3 PLUS
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 286Wh.
Accepts up to 200W of solar. Limited to a single portable panel.
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.
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
Don't read the RIVER 3 PLUS's expandability as a straight win here: it starts at 286Wh, below the Power 500's 512Wh, so a first expansion battery largely buys back capacity the Power 500 already includes. It only pulls ahead if you'd grow past 512Wh — short of that, the Power 500's larger fixed capacity is the simpler value.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow RIVER 3 PLUS
The RIVER 3 PLUS is the small unit that grows: a 286Wh base that expands to 572Wh or 858Wh, with a genuine 600W inverter and 1,200W X-Boost — twice the inverter and solar of the base RIVER 3A1. Reviewers single out how quiet it is, sub-30dB operation they describe as quieter than a library and most refrigeratorsA2. At about 10.4 lbs it's highly portable, and its LiFePO4 cells are rated for 3,000 cycles, roughly a decade before capacity settles to 80%A3A4. It's the pick for someone who wants to start light and add capacity only when they actually need it.
“286Wh base, expandable to 572Wh (EB300) or 858Wh (EB600), with a genuine 600W inverter (1,200W X-Boost) and 220W solar input — twice the inverter and solar of the base RIVER 3.”
Sources
ecoflow.com · bestgeneratorsolar.com · thepowerpick.com · storagereview.com · phonearena.com · greenreviewshub.com
DJI Power 500
The Power 500 is the bigger, simpler tank of the two: a 512Wh LFP battery whose automotive-grade cells are rated for 3,000 to 4,000 cycles, about a decade of use, and it puts out up to 1,000WB1. In testing it ran a 905W load and briefly handled a 1,500W spike above its own rating, and reviewers found it more efficient than DJI's larger Power 1000B3. The honest catch here isn't the battery — it's the box it comes in: reviews note it ships with only a wall plug, no solar adapter or car cable, so factor those in if you won't be charging from an outletB4.
“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
- Expandable capacity, doubled inverter and solar over the base RIVER 3, remarkable sub-30dB quiet, and light weight are the praise. [RIVER 3 PLUS · 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
“286Wh base, expandable to 572Wh (EB300) or 858Wh (EB600), with a genuine 600W inverter (1,200W X-Boost) and 220W solar input — twice the inverter and solar of the base RIVER 3.”
ecoflow.com / bestgeneratorsolar.com — RIVER 3 Plus review · 2026 · [positive]
- A2
“Sub-30dB operation is genuinely remarkable — quieter than a library and than most refrigerators.”
thepowerpick.com — RIVER 3 Plus review · 2026 · [positive]
- A3
“Weighs about 10.4 lbs and is highly portable; a small-format station that grows with you, able to briefly run a coffee maker, microwave, or space heater.”
storagereview.com / phonearena.com — RIVER 3 Plus review · 2026 · [positive]
- A4
“LiFePO4 rated for 3,000 charge cycles — around 10 years of everyday use before capacity drops to 80%.”
greenreviewshub.com / bestgeneratorsolar.com — RIVER 3 Plus review · 2026 · [positive]
- 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]
- 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 July 16, 2026.
Who Should Buy Which
Buy the RIVER 3 PLUS if you…
- →Backpackers and one-bag travelers who want the lightest unit — 10.4 lbs is 5.7 less than the DJI
- →Buyers on the tightest entry budget, where $279 today beats $359 today
- →Anyone who wants to start small and grow, with a real path to 858Wh the DJI can't match
Buy the Power 500 if you…
- →Buyers who want the most capable single box for the money — nearly double the base capacity and output for $80 more
- →CPAP and medical-backup users, where 512Wh clears a night the RIVER's 286Wh base can't
- →Anyone keeping the unit for years, where 4,000 cycles and 18 cents per lifetime kWh win out
If neither fits
Anyone eyeing a real weekend of camping, an all-day outage, or a fridge running for hours. Even the RIVER fully expanded to 858Wh falls short of those loads — step up to a 1,000Wh-plus unit rather than stretching either of these past its class.
The Bottom Line
Buy the Power 500 for the most capable single box: 512Wh and 1,000W for $359, cheaper per lifetime kilowatt-hour, and enough reserve to run a CPAP the base RIVER can't. That's the pick for most buyers who want one unit that does the job today.
Choose the RIVER 3 PLUS if weight, entry price, or room to grow outrank raw capability — at 10.4 lbs, $279, and a real path to 858Wh, it's a legitimate choice, not a compromise. The tie-breaker is simply which you value more: the bigger tank now, or the lighter one that grows later.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the EcoFlow RIVER 3 PLUS or DJI Power 500 better for the money?
It depends which price you mean. The RIVER is cheaper to buy at $279 against $359, but the DJI is cheaper per lifetime kilowatt-hour — 18 cents against 33 — because it has more capacity and 4,000 cycles to the RIVER's 3,000. Cheapest to buy is the RIVER; cheapest to run over years is the DJI.
Can the RIVER 3 PLUS run a CPAP overnight?
Not on its base battery alone. A CPAP needs roughly 320Wh for a night, which sits just above the RIVER's 286Wh base — you'd want an expansion battery to be safe. The Power 500's 512Wh covers a full night with reserve to spare.
Which one should I get if I might need more power later?
The RIVER 3 PLUS, without question — it's the only one here that expands, climbing to 858Wh with add-on batteries, past the DJI's fixed 512Wh ceiling. The Power 500 is sealed, so growing means buying a whole new unit. Just remember the expansion battery is an added cost.
How much lighter is the RIVER 3 PLUS?
About 5.7 lbs — 10.4 against the DJI's 16.1. That's a noticeable difference carrying it on a trail or lifting it in and out of a vehicle. Bear in mind part of that saving is simply the smaller battery inside.
Where to buy
EcoFlow RIVER 3 PLUS
$259.00
$259.00 list · direct from EcoFlow
DJI Power 500Pick
$299.00
$299.00 list · direct from DJI
Prices may vary by retailer and are subject to change.