Head-to-head test
EcoFlow RIVER 2 Pro vs EcoFlow RIVER 3
Extra 523Wh costs the RIVER 2 Pro $150 and 9.4 pounds up front, and it's still the cheaper battery to own, not the pricier one.
Written by Wenny ZhengUpdated
Portable Power Tester, Station Arena Test Desk
EcoFlow
RIVER 2 Pro
2,481Power Score · Appliance Class
$349.00 list · direct from EcoFlow
EcoFlow
RIVER 3
1,632Power Score · Device Hub
$199.00 list · direct from EcoFlow
Spec deltas
The RIVER 2 Pro costs $150 more than the RIVER 3 and comes with 523 more watt-hours to show for it — 768Wh against 245Wh, built on the same 3,000-cycle cell. Run that price against the energy each one actually delivers over its life and the sticker price stops telling the real story: the Pro works out to $0.15 per lifetime kWh, the RIVER 3 to $0.27. The bigger, pricier box is the cheaper one to own.
It is not the better box for every job, though. RIVER 3 is 9.4 pounds lighter, far quieter under load at 30dB against the Pro's 62, and the cheaper unit to simply walk out the door with — real advantages for anyone who wants the smallest, quietest unit they can carry. On the one scenario in this comparison with a clean winner, running a CPAP overnight, the size gap is what decides it: the Pro uses under half its usable capacity, the RIVER 3 would need more than it has.
Everywhere else, this is a story about two small tanks meeting big jobs. A real weekend of camping, an eight-hour blackout, a full remote workday — each one asks for more energy than either unit can usably hold in a single charge, and neither is the tool for it. The honest comparison here isn't which one wins those; it's which one comes closer, costs less to run, and doesn't leave you carrying more than you need.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
The Pro moves far more energy per cycle for a relatively small premium, so its price per kWh delivered over the unit's life comes out lower, not higher, even though the checkout total is bigger. A buyer comparing sticker prices alone is comparing the wrong number.
Both carry a 3,000-cycle cell and a 5-year warrantyRIVER 2 Pro: 768Wh for $349. RIVER 3: 245Wh for $199
Why it mattersChoose on checkout price and you'd grab the RIVER 3 and pay more per watt-hour for as long as you own it — the math favors the Pro the moment you keep either unit past a season.
continuous output
That distinction matters more than any scenario percentage does. An energy shortfall gets solved by recharging, trimming the load, or buying a bigger tank of the same type. A wattage ceiling isn't solved by any of that — the unit simply can't deliver that much power, full stop.
RIVER 3 outputs 300W continuous, 600W surge; RIVER 2 Pro outputs 800W continuous, 1600W surgeWeekend Camping (2100Wh), 8-Hour Blackout (1645Wh), Remote Workday (910Wh), and Van Life Daily (4685Wh) all exceed what either tank can usably hold in one charge
Why it mattersBefore sizing either one against a long day, check what you're plugging in draws in watts, not just how many watt-hours it needs — RIVER 3's 300W ceiling can rule it out on its own, independent of the capacity math.
A CPAP pulls a small, steady load all night, nowhere near the wattage that triggers the fan. So the spec that actually decides this scenario isn't noise at all — it's the 105-point gap in usable-capacity margin between the two (49% against 154%), and only the Pro clears it. One owner running a CPAP off a RIVER 2 Pro through the night confirms it holds up in practice, not just on paperA4.
CPAP Overnight needs 320Wh; RIVER 2 Pro uses 49% of usable capacity for it, RIVER 3 needs 154%RIVER 2 Pro's 62dB noise rating is specifically tied to high-wattage charging and discharging, per EcoFlow's own spec notesA2
Why it mattersSomeone ruling out the Pro for a CPAP-only use case over its noise rating is solving for the wrong spec — capacity margin decides this one, and the Pro is the only unit here that clears it.
weight
Because neither unit expands later, this decision is really 'pick your ceiling now, permanently.' 17.2 lb is still a one-hand carry for most adults, so the RIVER 3's lighter build is a real but secondary advantage next to the fact that undersizing today can't be fixed with an add-on tomorrow.
RIVER 2 Pro weighs 17.2 lb, RIVER 3 weighs 7.8 lbNeither model has an expansion path — both are fixed at their rated capacity for life
Why it mattersBuy the RIVER 3 for its size if your loads genuinely stay small. If there's real doubt about future needs, buy the capacity now — on either unit, growing later means a second purchase, not an upgrade.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: Same 3,000-cycle cell in both, so this section is where the $150-pricier unit turns out to be the cheaper one to own.
cost / lifetime kWh
Both units are built on the same 3,000-cycle lithium cell and carry the identical 5-year warranty term, so neither one is the longer-lived battery in any meaningful sense — they wear out at the same rate. What differs is how much energy moves through that identical cycle life: the Pro's larger tank means every one of its 3,000 cycles carries more watt-hours than the RIVER 3's, which is the entire reason the more expensive unit ends up cheaper per kWh delivered.
There is a real counterpoint, though. Spread the purchase price across the 5-year warranty term instead of across lifetime energy, and the Pro costs more per year of coverage, not less. Which number should decide it depends on whether you'll actually use the extra capacity — buy more tank than you need and you're paying for warranty years on watt-hours that sit idle.
Your Life, Your Pick
Selected because: Five of six scenarios return neither — worth separating the ones that are energy shortfalls from the one that's genuinely close.
Only one of six scenarios on this page has a clean winner: CPAP Overnight, where the Pro's bigger tank is simply the difference between finishing the night and not. Everywhere else, both units come up short, but not for the same reason. Weekend Camping, the Blackout, Remote Workday, and Van Life Daily are energy problems — the load is well within what either unit can physically deliver, there just isn't enough stored charge to last the full stretch. Tailgate Party is the closest call of the bunch: the Pro needs only a hair more than it has and comes up just short, while the RIVER 3 doesn't get near it.
Read neither as not sized for this, not as a tie. The Pro comes closer in every scenario it loses by a real, measurable margin, and it's the only one of the two that clears CPAP Overnight outright.
What the Specs Don't Tell You
Selected because: Noise, UPS speed, and warranty value all fire for this pair and each one cuts a different direction.
Three flags fire for this pair, and they don't all point the same way. The Pro is meaningfully louder under load, worth knowing if you're fast-charging it in a small space, while the RIVER 3 switches over to battery power slightly faster, though both are quick enough for ordinary electronics. Warranty length is identical at 5 years on both, so that one's a wash on coverage terms; it only starts to differ once you divide the purchase price by the years of coverage, and there the smaller, cheaper unit wins.
None of the three is disqualifying on its own. They're the kind of details that decide it only when the rest of the page is close, which, outside of CPAP Overnight, it usually is.
Growth Path
Selected because: Neither model expands, so this is really a pick-your-ceiling-now decision, and the Pro's ceiling is much higher.
solar input
Neither model has anywhere to grow. What you buy is what you'll have for the life of the unit, on both sides of this comparison, so the real decision isn't which one can I add to later, it's which ceiling do I actually need right now. The Pro's ceiling is the higher one by a wide margin, which is the entire case for paying more up front.
That cuts against the RIVER 3 more than the spec sheet lets on. It's not just smaller today — it's permanently smaller, with no path to more capacity short of buying a second unit. If there's real uncertainty about how much power you'll need six months from now, that argues for sizing up now rather than growing into it later, because later isn't an option either box offers.
Portability & Form Factor
Selected because: 9.4 lb separates them, enough to matter for anyone who carries this further than the trunk.
weight
17.2 lb and 7.8 lb are both realistic one-hand carries for most adults, so this isn't a hernia-versus-easy story the way some matchups are. It's a difference you feel in the details instead: sliding one more easily into a backpack's bottom compartment, or not minding an extra rattle in the trunk on a bumpy road.
It matters more anywhere weight is load-bearing on a body for a while: hauling it up a flight of stairs during an outage, or packing it in on foot to a campsite. There, 9.4 lb is the difference between an easy trip and a second one.
Strengths & trade-offs
EcoFlow RIVER 2 Pro
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Substantially more expensive (+$150) than the RIVER 3.
- –Can receive complaints about fan noise under heavy load.
EcoFlow RIVER 3
Strengths
- +Costs $150 less
- +Lighter by 9.4 lb
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
Both units run out long before the weekend does. RIVER 2 Pro would need more than three full tanks to cover it, RIVER 3 better than ten. If your trips regularly demand this much energy, look at a larger single unit instead of choosing 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
Neither survives a real eight-hour outage on one charge. RIVER 2 Pro gets closest, needing about two and a half tanks' worth, while RIVER 3 would need to refill roughly eight times over. A blackout doesn't pause for a recharge, so if this is the actual use case, both units are undersized.
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
RIVER 2 Pro
The one scenario here with a clean winner. RIVER 2 Pro uses 49 percent of its usable capacity overnight, well under half, with real margin left over. RIVER 3 would need 154 percent of what it can usably hold — it runs out before the night does.
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 outlasts both. RIVER 2 Pro gets closest, needing about a tank and a half, while RIVER 3 needs better than four tanks to make it through. Either one means a midday recharge; if this is a daily pattern, size up instead.
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
The closest call on this page. RIVER 2 Pro needs just a hair over its usable capacity, 103 percent, close enough to be a rounding error, and still comes up short. RIVER 3 doesn't get near it; it runs out well before the party's over. Trim the load slightly and the Pro is worth a second look; the RIVER 3 isn't close either way.
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 is in range. Van Life Daily asks for far more energy than either tank can usably hold in a single day. RIVER 2 Pro would need more than seven full tanks, RIVER 3 more than twenty. This one is really about daily solar recharge and a bigger battery bank, 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: RIVER 2 Pro runs 3.2h vs 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 limits¹ 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 28, 2026
Verdict: the RIVER 2 Pro, on Power Score margin
Buy the RIVER 2 Pro if $150 and 9.4 pounds up front is worth a battery that costs less per kWh over its life and is the only one of the two that gets a CPAP through a full night without help. Buy the RIVER 3 if the priority is the lightest, quietest unit you can carry and your loads stay modest. Outside of CPAP Overnight, neither tank is sized for a real weekend of camping, a real blackout, or a full remote workday, so don't buy either one expecting to cover those — that calls for a larger single unit, not a choice between these two.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 28, 2026. The links below open EcoFlow's current price.
$349.00 list · direct from EcoFlow
or check the RIVER 3 price$199.00 list
Written by Wenny Zheng, Portable Power Tester · Station Arena Test Desk · Updated July 28, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): UPS, Solar Generator.
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 4.5/5 (72nd percentile of 19 Compact-class units), and RIVER 3 rates 4.4/5 (62nd percentile of 22 Personal-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.
Under load, not at idle
RIVER 2 Pro is rated up to 62dB when it's charging or discharging hard, nearly double RIVER 3's 30dB ceiling. At low, steady draw neither unit is working hard enough to hit those numbers; the gap matters most when you're fast-charging or pulling near the max continuous rating, not when you're trickle-powering something small overnight.
Both fast, RIVER 3 a touch faster
RIVER 2 Pro switches over in 30 milliseconds, RIVER 3 in 20. Both are fast enough that most electronics never notice the blink, and the 10-millisecond gap only matters for equipment that can't tolerate any interruption at all.
Same coverage, different value per dollar
Both carry a 5-year warranty, so the coverage itself is a wash. Spread the purchase price over those five years instead and the picture changes: the RIVER 3 costs less per year of coverage than the RIVER 2 Pro does, even though it costs more per kWh actually delivered over its life.
Full record above — the Test Desk pick is the RIVER 2 Pro.
Check RIVER 2 Pro price →or check the RIVER 3 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 is cheaper to buy, but the RIVER 2 Pro is cheaper to own. At $0.15/kWh over its lifetime vs $0.27/kWh, the RIVER 2 Pro's higher cycle life and capacity make each dollar go further over the years.
Delivers each lifetime kWh for $0.12 less — check the RIVER 2 Pro price →
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.
RIVER 3
FIXED CAPACITYFixed at 245Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 110W 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
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
Coverage specific to the RIVER 2 Pro, as opposed to the base RIVER 2 or the RIVER 2 Max, is thin online — most threads either conflate the line or don't specify which sub-model they're running, so treat this as a small sample. What does clear the bar is consistent: owners and EcoFlow's own spec language agree the fan gets loud during high-wattage charging and discharging, up to 62dB, and at least one owner found it worth physically modifying the fan to quiet it downA1A2. EcoFlow's own footnote ties that 62dB figure specifically to charging and discharging at high wattage, not everyday drawA2.
On the question that matters most for an overnight medical device, the sample is thin but positive: one van-living owner running a CPAP off a RIVER 2 Pro reported getting through the night with no problemsA4. Separately, at least one owner has openly wondered whether leaving it connected as a UPS wears the battery down faster than normal useA3 — a fair question, and not one this brief's data can settle either way.
“Will using River 2 Pro as a UPS affect battery life ...”
Sources
ctrl-alt-rees.com
EcoFlow RIVER 3
Most of what's written about the RIVER 3 compares it to the standard RIVER 2, not this Pro variant, and it's consistently favorable there: quieter, faster to switch over on a power cut, and a lighter, more compact buildB1B2. Reviewers recommend it as the better buy for most people in 2026 for camping, van life, or home backup, specifically citing durability and noiseB3.
Read the strict-upgrade framing with an asterisk, though. Some of that base-model coverage also credits the RIVER 3 with more capacity than the RIVER 2 for less moneyB4 — true against the standard model, not against this Pro. At 245Wh, it holds less than a third of the Pro's 768Wh, even though it stays the lighter, cheaper unit of the two.
“The RIVER 3 operates under 30 dB — EcoFlow calls it 'whisper quiet,' quieter than a library — one of the most significant upgrades over the louder RIVER 2.”
Sources
backuppowerhub.com · ecoflow.com · rv.com · versus.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]
- The RIVER 3 improves on the RIVER 2 across the board — quieter (sub-30 dB), IP54-rugged, faster UPS, more capacity, lighter, and cheaper — a rare strict upgrade. [RIVER 3 · 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
“The RIVER 3 operates under 30 dB — EcoFlow calls it 'whisper quiet,' quieter than a library — one of the most significant upgrades over the louder RIVER 2.”
backuppowerhub.com / ecoflow.com — RIVER 2 vs RIVER 3 · 2026 · [positive]
- B2
“Over the RIVER 2, the RIVER 3 adds IP54 waterproofing, a faster UPS switchover, a 2x runtime mode, and a more compact, lighter form factor.”
backuppowerhub.com — RIVER 2 vs RIVER 3 · 2026 · [positive]
- B3
“Recommended as the better buy for most in 2026 — for camping, van life, or home UPS backup, where durability and noise matter, the data consistently favors the RIVER 3.”
backuppowerhub.com / rv.com — RIVER 3 review · 2026 · [positive]
- B4
“Holds more capacity and weighs less than the RIVER 2 while costing less, making it effectively a strict upgrade on the same platform.”
ecoflow.com / versus.com — RIVER 2 vs RIVER 3 · 2026 · [positive]
Research compiled July 28, 2026.
Who Should Buy Which
Buy the RIVER 2 Pro if you…
- →Someone who wants the most usable capacity available in this size class and has already run the five-year math: the bigger tank works out to the cheaper one to actually own, not just the pricier one to check out with.
- →Also the right pick for anyone running a CPAP or another overnight medical load that can't fail. It's the only one of these two that gets through the night with real margin to spare, and one owner running exactly that setup off a RIVER 2 Pro backs it up in practiceA4.
Buy the RIVER 3 if you…
- →Someone who wants the lightest, quietest unit in the RIVER line for modest daily loads — a laptop, a phone, a small fan, a camp light — and doesn't want to spend $349 or carry 17.2 pounds to get it.
- →Also a solid pick for anyone who specifically values a near-silent unit for a bedroom, nursery, or shared space, where the Pro's louder charging noise would actually be noticedA1A2.
If neither fits
Skip both if your actual need is a real weekend of camping, a multi-day blackout, or a full remote workday — those loads need several times what either tank can usably hold in one charge, and since neither model has an expansion path, the fix is a larger single unit from the start, not a choice between these two.
The Bottom Line
The RIVER 2 Pro costs more to buy and carry, and it's still the cheaper battery once you account for how much energy it actually moves over a 3,000-cycle life, plus the only one of these two that gets a CPAP through a full night unassisted. The RIVER 3 wins on weight, quiet, and price of entry, real advantages if your loads stay small.
Outside of CPAP Overnight, neither is sized for a real weekend away, a real blackout, or a real workday, so don't buy either one expecting it to be that battery. Buy the Pro for the bigger jobs it can actually finish and the better lifetime math; buy the RIVER 3 for the lightest, quietest grab-and-go you can get for $199.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the RIVER 2 Pro just an older, bigger RIVER 3?
Not exactly. It's the earlier generation in the RIVER line, and the two aren't the same design at different sizes. The Pro holds far more capacity, 768Wh against 245Wh, for $150 more, but it's also 9.4 pounds heavier and noticeably louder under load. Think of them as different tools: one is a small, quiet, grab-and-go battery, the other is a bigger tank built to actually finish more jobs.
Can either one power a CPAP all night?
The RIVER 2 Pro can, comfortably. It uses 49 percent of its usable capacity for a typical night, leaving real margin. The RIVER 3 can't reliably finish the night on its own; the same load needs 154 percent of what it can usably hold, meaning it runs dry before morning. This is the one scenario on this page with a clear winner.
Why does the more expensive unit end up cheaper to own?
Both units share the same 3,000-cycle cell and 5-year warranty, so they wear out on the same schedule. The Pro just moves more energy through every one of those identical cycles, so the price per kWh actually delivered over its life comes out lower, not higher, despite the bigger checkout total.
Is the RIVER 2 Pro loud?
It's rated up to 62dB, against the RIVER 3's 30dB — a real, noticeable gap. That figure is specifically tied to charging and discharging at high wattage, not steady low-power use, so it matters most if you're fast-charging it in a small room, less if you're trickle-powering something small overnight.
Can I add capacity later if I outgrow either one?
No. Neither model has an expansion battery or add-on pack. What you buy is fixed for the life of the unit on both sides of this comparison, so size for your actual needs now rather than planning to grow into more capacity later.
Where to buy
EcoFlow RIVER 2 ProPick
$349.00
$349.00 list · direct from EcoFlow
EcoFlow RIVER 3
$199.00
$199.00 list · direct from EcoFlow
Prices may vary by retailer and are subject to change.