Head-to-head test
EcoFlow RIVER 2 Pro vs DJI Power 500
The RIVER 2 Pro is half again the battery for thirty dollars less, so the DJI has to win this on the one spec it owns: whether you can sleep next to it.
Full profiles: EcoFlow RIVER 2 Pro → · DJI Power 500 →
Written by Wenny ZhengUpdated
Portable Power Tester, Station Arena Test Desk
$389.00 · direct from EcoFlow
Last checked 1 day ago. Prices move — check before you buy.
$299.00 · direct from DJI
Last checked 1 day ago. Prices move — check before you buy.
Spec deltas
$349 buys 768Wh here. $379 buys 512Wh. The cheaper unit on this page is also the bigger one, which usually means something got traded away somewhere, and on the RIVER 2 Pro it did: the fan.
62dB under load against 25dB. That's not a preference gap, it's the difference between a box you keep in the garage and a box you can sleep beside. It's also why the only scenario both units actually cover, a CPAP overnight, goes to the DJI despite the RIVER 2 Pro finishing the same 320Wh with half its battery still in reserve.
Everywhere else the RIVER 2 Pro wins on arithmetic: half again the capacity, double the surge headroom, more total energy over its life, and a lower price doing it. Buy the Power 500 if the unit is going to live in the room where you sleep. Otherwise buy the RIVER 2 Pro and put it somewhere with a door.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
rated cycles
Now put the prices on it. The RIVER 2 Pro's $349 spreads across 2,304 kWh for 15 cents per lifetime kWh; the Power 500's $379 spreads across 2,048 kWh for 19 cents. Reviewers cite roughly a ten-year lifespan for the DJI's automotive-grade LFP cellsB1, and that's true, but a decade of a smaller battery is still a smaller battery. The cycle count is the DJI's headline durability number and it points the wrong way once you multiply it out.
DJI Power 500: 4,000 cycles on a 512Wh batteryEcoFlow RIVER 2 Pro: 3,000 cycles on a 768Wh batteryTotal lifetime energy: 2,304 kWh for the RIVER 2 Pro, 2,048 kWh for the Power 500
Why it mattersAnybody comparing these on 4,000 cycles against 3,000 should multiply by capacity first, then look at the sticker again.
continuous output
Fridge and pump compressors pull two to three times their running draw for the first second, so the number that decides whether an appliance starts is the peak, not the rating. Reviewers did push 905W through the Power 500 and briefly saw 1,500W go past its 1,000W ceilingB3, which says DJI rated it conservatively. But that headroom is undocumented, and a motor that won't spin at 6 a.m. is a poor place to discover whether one bench result generalizes.
Power 500: 1,000W continuous, 1,000W surgeRIVER 2 Pro: 800W continuous, 1,600W surge
Why it mattersIf a fridge, a pump or a corded tool is on your list, buy the published 1,600W rather than gambling on 500W that nobody promises.
EcoFlow's own product page footnotes up to 62dB when the RIVER 2 series charges or discharges at high wattageA2, and one owner cared enough to cut away internal plastic and fit a quieter fan in their RIVER 2 ProA1. Eighteen inches from a pillow, the deciding spec stops being watt-hours and becomes whether the fan wakes you at 2 a.m. to solve a problem you didn't have. That's the whole reason the CPAP scenario goes to the smaller, more expensive unit.
RIVER 2 Pro rated 62dB under load; Power 500 rated 25dBCPAP Overnight needs 320Wh: 49% of the RIVER 2 Pro, 74% of the Power 500Both units can supply the peak draw in every scenario on this page
Why it mattersIf the station sleeps in your bedroom or your van, the quiet one is worth the premium and the missing 256Wh. If it doesn't, you're paying for silence in an empty room.
solar input
Reviewers note the Power 500 ships with only a wall plug, no solar adapter and no car-charging cableB4, so the faster-refill argument starts as a purchase order rather than a capability, layered on a unit that already costs more. The RIVER 2 Pro's 220W is smaller and it's the number the unit actually has on the day it arrives.
Power 500 accepts 300W of solar; RIVER 2 Pro accepts 220WThe Power 500 has no built-in solar charge controller and needs a separate proprietary DJI adapter
Why it mattersPrice the DJI with its solar adapter included before you compare recharge speed, or sidestep the question entirely and take the RIVER 2 Pro.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: Selected because: the cheaper unit here is also the bigger one, and it stays ahead out to 2,304 kWh of lifetime energy against 2,048 kWh.
The cheaper box is the bigger box, which is rare enough to double-check. 45 cents per watt-hour on the RIVER 2 Pro against 58 cents on the Power 500, and the RIVER is also the one with the lower sticker. Nothing on the DJI's spec sheet earns that back in dollars.
Run it to the end of the batteries and it widens instead of closing. Three thousand cycles of 768Wh is 2,304 kWh; four thousand cycles of 512Wh is 2,048 kWh. So the longer-lived cells deliver less energy in total and charge you 19 cents a lifetime kWh to the RIVER 2 Pro's 15. Warranty coverage is five years either way, at $70 a year against $76. The Power 500 has to win this somewhere other than money, and it does, but only in one room of the house.
What the Specs Don't Tell You
Selected because: Selected because: five cards fire on this pair, and the one about fan noise is the entire case for the DJI.
rated cycles
Five cards fire and four of them are near-ties. Warranty is five years each. USB-C tops out at 100W on both. Switchover is 30ms against 20ms, which matters to a desktop with a bargain power supply and to almost nothing else in a house. Cycle life looks like a clean DJI win right up until you multiply it by capacity.
The fifth card is the only one that should move a decision. The RIVER 2 Pro's 62dB rating applies when it's charging or discharging hard, not when it's trickling a laptop, so the penalty is real but situational. The question was never how loud the fan gets. It's whether anyone will be in the room when it does.
Runtime: Will It Power Your Gear?
Selected because: Selected because: 768Wh against 512Wh is the difference between covering a load and landing just short of it.
continuous output
The gap is 256Wh, and the cleanest way to hold that is this: 768Wh against 512Wh means buying the RIVER 2 Pro gets you a Power 500 plus half of another one, for less money. Everything about how long these run traces back to that single sentence.
Where it bites is the near-miss. A 670Wh tailgate list puts the RIVER 2 Pro at 103% of what it can deliver and the Power 500 at 154%. The first you fix by unplugging the second speaker. The second you fix by buying a different unit.
Your Life, Your Pick
Selected because: Selected because: five of the six scenarios outrun both units, and the one that doesn't goes to the DJI.
Five of six scenarios outrun both units, and that's the useful finding rather than a disappointment. An eight-hour blackout list wants 1,645Wh and puts the RIVER 2 Pro at 252%, the Power 500 at 378%. Van life wants 4,685Wh and the percentages stop being worth reading. Neither of these is a house battery, and a page that implies otherwise is selling you something.
What both cover is a night, a desk, or a short specific list. Both can supply peak draw in every scenario here, so the limit is always duration and never capability. Decide which handful of things you need alive, then take the one with more battery unless it has to be silent.
Brand Trust
Selected because: Selected because: EcoFlow has the deepest catalogue in portable power and DJI has been building power stations since 2024.
On a box in this price bracket the brand question is narrow: who picks up in year four. EcoFlow brings 12-15 models, roughly 31K people on r/Ecoflow_community, and a support reputation that splits down the middle between hassle-free prepaid-label replacements and long waits that end in a refurbished unit. DJI has been building power stations only since 2024 and has no power-station community at all, but it routes service through the repair network it built for drones, which is a better inheritance than most new entrants get.
Both warrant five years. EcoFlow states outright that it offers no parts or service past that, and it carries an October 2025 DELTA Max 2000 recall on the record, though that's a different product line and a far bigger battery. DJI's app scores 3.5/5, but that rating covers the whole DJI ecosystem including drones and cameras, so read it as noise rather than a verdict on this unit. Neither brand is a reason to change your answer here.
Strengths & trade-offs
EcoFlow RIVER 2 Pro
Strengths
- +Larger battery capacity
Trade-offs
- –Can receive complaints about fan noise under heavy load.
- –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 $50 less
- +Lighter by 1.1 lb
- +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 covers this scenario's 2,100Wh: the RIVER 2 Pro comes up 1,447Wh short (about 31% 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
1,645Wh of demand puts the RIVER 2 Pro at 252% of what it can deliver and the Power 500 at 378%, so neither is your whole-house outage plan. Both can start every load on the list; they just can't finish the night with all of them running. Cut it down to the fridge, the phones and the router and either one carries a long evening.
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
Both get you to morning: 320Wh works out to 49% of the RIVER 2 Pro and 74% of the Power 500. But this is the one load you sleep beside, so the deciding number is 25dB against a rated 62dB under load, not the battery you have left at sunrise. The DJI takes it, and it isn't close.
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 covers this scenario's 910Wh: the RIVER 2 Pro comes up 257Wh short (about 72% covered), the Power 500 475Wh (48%). Treat this as partial cover — enough for the essentials in it, not the whole list.
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 quite covers it, and the RIVER 2 Pro's miss is almost comic: 670Wh of demand against a unit that lands at 103%. That's a second speaker's worth of shortfall. The Power 500 sits at 154%, which is not a rounding error you can unplug your way out of.
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
4,685Wh a day is 718% of the RIVER 2 Pro and 1,077% of the Power 500. This isn't a close call between two units, it's the wrong shelf of the store. Either one is a supplement to a van's house bank, never the bank itself.
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: RIVER 2 Pro runs 3.2h vs 2.1h.
$349 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 0–43.5hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–8.7hHigh-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 RIVER 2 Pro
Take the RIVER 2 Pro at $349 unless the unit will be within earshot while you sleep. It's 768Wh against 512Wh, 1,600W of surge against a flat 1,000W, and 2,304 kWh of energy across its life against 2,048 kWh, all while costing less than the $379 DJI. The Power 500 wins exactly one thing, and it wins it decisively: 25dB against the RIVER 2 Pro's rated 62dB under load, which is why the CPAP night goes to the DJI even though the EcoFlow covers that same 320Wh using 49% of its battery to the DJI's 74%. That carve-out is real, not a consolation prize. If the box lives in a bedroom, a small van or a studio apartment, pay the extra and take the quiet. Anywhere else, the arithmetic isn't close.
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.
$389.00 · direct from EcoFlow
Last checked 1 day ago. Prices move — check before you buy.
or check the Power 500 price$299.00 list
Written by Wenny Zheng, Portable Power Tester · Station Arena Test Desk · Updated August 9, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): UPS.
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 2 Pro rates 4.7/5 (84th 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.
62dB Under Load Against 25dB
62dB is the RIVER 2 Pro's rated figure for charging or discharging at high wattage, not the sound it makes trickling a laptop. The Power 500 is rated 25dB, at the quiet end of anything in this class. Put the RIVER 2 Pro in a garage, a truck bed or a hallway and this card costs you nothing. Put it at the foot of the bed during a fast charge and it's the loudest object in the room.
1,600W Peak Against a Flat 1,000W
The RIVER 2 Pro runs 800W and peaks at 1,600W, exactly double, which is the reserve a fridge compressor swallows in its first second. The Power 500 runs 1,000W and peaks at 1,000W, so the 200W it gains in continuous output it gives back in headroom. For steady loads the DJI is the stronger inverter. For anything with a motor in it, the RIVER 2 Pro is.
20ms Against 30ms, Both Standby
Both units switch over in standby fashion rather than running true online UPS, so nothing here protects gear that genuinely cannot blink. A router, a laptop or a NAS with a competent power supply rides through either one. A desktop with a bargain PSU is the single case where the DJI's 10ms head start might show up, and if that's your worry the real answer is a proper double-conversion UPS.
Warranty: No Difference
Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here. The Power 500's figure is a maximum rather than a guarantee — it depends on buying from DJI's own store, which is where the full five years is advertised.
4,000 Cycles That Add Up to Less
The Power 500's 4,000 cycles beat the RIVER 2 Pro's 3,000 and it still finishes behind: 4,000 cycles of 512Wh is 2,048 kWh, 3,000 cycles of 768Wh is 2,304 kWh. A cycle is only as big as the battery having it. Count the energy, not the cycles.
Full record above — the Test Desk pick is the RIVER 2 Pro.
Check RIVER 2 Pro 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
Both units cost the same to own over their rated lives — $0.15/kWh each. Lifetime cost can't separate them, so decide on the sticker price and everything else. 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 RIVER 2 Pro still delivers more over its shorter horizon (2,304 vs 2,048 kWh). Years measure wear, not usefulness.
Brand trust
EcoFlow
Ecosystem
The widest catalogue in portable power: 12-15 models across the DELTA Pro, DELTA 3 and RIVER 3 lines, plus panels and smart home panels. If the RIVER 2 Pro turns out to be a size too small, EcoFlow already sells the next four steps up.
Support
US phone, email and chat, with experiences that split hard. Plenty of hassle-free prepaid-label replacements, plenty of long waits that end with a refurbished unit against a new claim. Buying through Costco or Amazon buys you a second return path, and it's worth doing.
Community
The largest in the category. Roughly 31K members on r/Ecoflow_community, several Facebook groups and an official forum, so whatever your unit does at midnight, someone has already posted about it.
App experience
Rated 4.6/5 iOS (~8,400 ratings) · 4.2/5 Android (~17,000 ratings)
Unique strength
X-Stream fast charging and the deepest ecosystem in the space, with modular expansion running all the way to 180kWh at the DELTA Pro Ultra X end of the range.
Worth knowing
The October 2025 DELTA Max 2000 recall for overheating is on the record, and EcoFlow offers no parts or service once the warranty expires. It also tested app subscription paywalls in early 2025 before backlash paused the plan.
DJI
Ecosystem
Four power stations, all from 2024 onward: Power 500, Power 1000 Mini, Power 1000 V2 and Power 2000. Narrow, but each one reads as designed rather than badge-engineered.
Support
Inherits DJI's global repair-centre network from the drone business, which is a stronger starting position than most newcomers get. The power-station-specific record is short only because the products are.
Community
There isn't one yet. Power questions land in r/dji among roughly 250K members who are mostly there for the drones, so expect to be the first person asking about your particular fault.
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
Quiet is the design brief, published at 23-30dB across the line, backed by 700+ battery patents out of drone R&D and SDC ports that refill DJI batteries fast.
Worth knowing
No built-in solar charge controller, so reaching the 300W input takes a separate proprietary adapter. The SDC advantage only pays off if you already own DJI gear, and battery expansion exists on the Power 2000 and Power 1000 V2 but not on this one.
Analyst note
EcoFlow hands you a catalogue, a crowded forum and a support line with a mixed reputation. DJI hands you an unusually quiet, unusually well-built box from a company that has been making power stations for about two years and hardware for twenty. At this price the practical gap is small: both warrant five years, and EcoFlow is explicit that nothing happens after that. Let the specs decide this one, not the badge.
Growth path
RIVER 2 Pro
FIXED CAPACITYFixed at 768Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 220W of solar. Limited to a single portable panel.
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 RIVER 2 Pro 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 RIVER 2 Pro
Model-verified commentary on the RIVER 2 Pro is thin, because most online discussion blurs it together with the base RIVER 2 and the RIVER 2 MaxA1A2A3A4. What survives that filter is almost all about the fan: EcoFlow's own product page concedes up to 62dB when the RIVER 2 series charges or discharges at high wattageA2, and one owner performed a fan swap on their RIVER 2 Pro that required cutting away internal plastic to fitA1. When a manufacturer footnote and a knife converge on the same complaint, treat it as settled.
The quieter side of the ledger is thinner still. In an Apnea Board thread about this unit, a van-dwelling owner reports an AirSense 11 AutoSet running overnight without trouble, though the post describes their battery bank generally rather than the RIVER 2 Pro by itself, so read it as encouraging rather than conclusiveA4. Owners have also asked whether running it in UPS mode shortens battery life, with no clear answer in the threadA3.
“Will using River 2 Pro as a UPS affect battery life ...”
Sources
ctrl-alt-rees.com
DJI Power 500
What exists on the Power 500 comes from reviewers rather than long-term owners, which is what you'd expect from a 2024 product lineB1B2B3B4. Testers ran a 905W load through it and briefly saw 1,500W pass a 1,000W-rated inverter, and found it more efficient in testing than DJI's larger Power 1000B3. The cells are automotive-grade LFP quoted at 3,000 to 4,000 cycles, roughly a decade of useB1, which is slightly softer than DJI's own 4,000-cycle claim.
The consistent gripe is the box, not the unit. It arrives with a wall plug and nothing else: no solar adapter, no car-charging cableB4. On the plus side it's genuinely easy to move at 16.1 lbsB2, which is the part of a small station people underrate until they're carrying it across a field.
“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
- Fan noise at high wattage charging/discharging is a consistent owner and manufacturer-acknowledged complaint, severe enough that some owners physically mod the unit with quieter fans. [RIVER 2 Pro · 2 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
“I've since performed the same mod on my RIVER 2 PRO and it works great for that unit, too - although it did involve cutting away some of the internal plastic.”
ctrl-alt-rees.com blog — 'EcoFlow RIVER 2 Noisy Fan Fix!' · 2022-11-17 · [negative]
- A2
“When charging and discharging at high wattage, RIVER 2 Max and RIVER 2 Pro may make a noise up to 62db.”
EcoFlow official product page — RIVER 2 Series specs/FAQ footnotes · unknown · [negative]
- A3
“Will using River 2 Pro as a UPS affect battery life ...”
Facebook — EcoFlow Club group post title · unknown · [mixed]
- A4
“I'm very new to CPAP (1 week) and I live in a van. I have solar and a decent battery bank and I've got the ResMed DC-DC cable which powers my AirSense 11 AutoSet overnight no problem.”
Apnea Board forum — '[Equipment] EcoFlow River 2 Pro' thread · 2025-07 · [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.
What Owners Actually Report
Drawn from 35 comments on independent review channels — not from retailer reviews, which skew to the first week of ownership. Each line is our summary of one commenter's claim, linked to the original. We record what they said, including where it contradicts the spec sheet.
EcoFlow RIVER 2 Pro
32 claims from 21 comments · 27 from owners · 8 with figures
- Runtime
- 5 · 0% negative
- Size & weight
- 2 · 0% negative
- Solar input
- 2 · 0% negative
- Inverter & surge
- 3 · 23% negative
- App & firmware
- 3 · 0% negative
What owners complain about
Wildly fluctuating DC output on two separate units bought from different retailers.
Build qualityowner1 agreedsource →
Does tend to self-discharge, so he keeps it on the low 100W power setting.
Idle drainowner3 agreedsource →
Unit would not power on within a week of purchase despite a full charge.
Durabilityownersource →
What owners praise
DJI Power 500
16 claims from 14 comments · 7 from owners · 3 with figures
- Price & value
- 5 · 6% negative
- Inverter & surge
- 2 · 0% negative
- Runtime
- 3 · 32% negative
- Solar input
- 2 · 0% negative
- Durability
- 1 · 0% negative
What owners complain about
Wishes he could get one in Barbados.
Shipping6 agreedsource →
512Wh will not run a household fridge for 24 hours; maybe around six.
Runtime46 agreedsource →
550 euro in Europe without any accessories is far too high.
Price & value4 agreedsource →
What owners praise
Ran an electric blanket and streaming overnight with plenty left for morning coffee.
Runtimeowner5 agreedsource →
A semi driver runs a microwave off it in a truck with no inverter; worth its weight in gold.
Inverter & surgeowner15 agreedsource →
For $179 more than the Anker he got a far more usable product at $379.
Price & valuemeasuredowner1 agreedsource →
Claims are weighted by how specific they are, whether the commenter owns the unit, and how many readers agreed. Comments that mention a product under a rival's review count for more, because the commenter had no reason to be there. This is what buyers report, not our test results — for measurements we ran ourselves, see the methodology.
Who Should Buy Which
Buy the RIVER 2 Pro if you…
- →You're powering a campsite, a garage, a job site or a hall closet during an outage. 768Wh for $349 is the best energy per dollar on this page, and a loud fan costs you nothing in a room nobody's sitting in.
- →There's a fridge, a pump or a corded tool on the list. 1,600W of peak against 800W continuous is the headroom a compressor eats on startup, and the DJI's flat 1,000W has none to give.
- →You want the deeper catalogue behind the purchase. EcoFlow runs 12-15 models and about 31K people on its subreddit, which is what you actually want at 10pm in year three when something behaves oddly.
Buy the Power 500 if you…
- →The unit lives where you sleep. 25dB against a rated 62dB under load is the whole argument, and it's decisive enough to hand the DJI the CPAP night even though that load consumes 74% of its battery to the RIVER 2 Pro's 49%.
- →You already fly DJI. The SDC ports charge DJI batteries fast, so the ecosystem lock-in reads as a feature instead of a tax, and nobody else on this page offers it.
- →Your loads are steady and high rather than spiky. 1,000W continuous is 200W more than the RIVER 2 Pro can hold, and testers confirmed 905W runs through it comfortablyB3.
If neither fits
Skip both if you're trying to cover a real blackout or a day of van life. An eight-hour outage list already wants 1,645Wh, and van life daily wants 4,685Wh, which lands at 718% of the RIVER 2 Pro and 1,077% of the Power 500. No unit in the 512Wh to 768Wh class is going to bridge that, and stacking two of them costs more than doing it properly. Move up to the 2,000Wh class, or build a LiFePO4 house bank with a separate inverter and stop shopping in this bracket.
The Bottom Line
Take the RIVER 2 Pro. Half again the battery, double the surge headroom, more energy across its whole service life, and a lower price doing all of it. Three thousand big cycles beat four thousand small ones by 256 kWh, and that single line settles most of this page.
The Power 500's case is one specification, and it's a good one. If this thing is going to hum away beside your bed all night, the quiet is worth both the premium and the smaller battery, and the CPAP scenario says so without hedging. If it's going to sit in a garage, a truck bed or a closet, you'd be paying more for less so that a fan you'd never hear can be quieter. Buy the RIVER 2 Pro.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
EcoFlow RIVER 2 Pro or DJI Power 500 — which should I buy?
The RIVER 2 Pro, unless the unit will be near you while you sleep. It's $349 for 768Wh against $379 for 512Wh, with 1,600W of surge to the DJI's 1,000W and a lower cost per lifetime kWh. The Power 500's case rests on being rated 25dB against the RIVER 2 Pro's 62dB under load, which is worth the premium in a bedroom and nowhere else.
How loud is the EcoFlow RIVER 2 Pro really?
Up to 62dB, and that figure comes from EcoFlow's own product page for charging and discharging at high wattage. At a low trickle it's quieter than that, so the noise is situational rather than constant. One owner still thought it worth swapping the fan, which meant cutting internal plastic to make the replacement fit. The DJI line is published at 23-30dB.
Can either of these start a fridge?
The RIVER 2 Pro is the safer bet. Compressors pull two to three times their running draw for the first second, and it peaks at 1,600W against 800W continuous. The Power 500 lists 1,000W continuous and 1,000W surge, so there's no declared headroom, even though testers briefly measured 1,500W through it.
Does the DJI Power 500 charge from solar panels?
Yes, up to 300W, which beats the RIVER 2 Pro's 220W on paper. The catch is that there's no built-in solar charge controller, so you need DJI's separate proprietary adapter to use it at all. Reviewers note the unit ships with only a wall plug, no solar adapter and no car cable, so budget for that part before comparing recharge speeds.
Will either one run a CPAP all night?
Both will. A 320Wh overnight comes to 49% of the RIVER 2 Pro and 74% of the Power 500, so capacity isn't the deciding factor. What decides it is the fan eighteen inches from your head, and that's 25dB against 62dB in the DJI's favour.
Brand matchup
EcoFlow vs DJI: measured across every matchup →Where to buy
EcoFlow RIVER 2 ProPick
$389.00
$389.00 · direct from EcoFlow
Last checked 1 day ago. Prices move — check before you buy.
DJI Power 500
$299.00
$299.00 · direct from DJI
Last checked 1 day ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.