Head-to-head test
EcoFlow RIVER 2 Max vs Anker SOLIX C300
The C300 is the better bedside gadget — silent, true UPS, fast USB-C — but it holds 224Wh less, and capacity is what these jobs actually run out of.
Written by Wenny ZhengUpdated
Portable Power Tester, Station Arena Test Desk

EcoFlow
RIVER 2 Max
2,030Power Score · Appliance Class
$289.00 list · direct from EcoFlow

Anker
SOLIX C300
1,664Power Score · Device Hub
$299.99 list · direct from Anker
Spec deltas
The RIVER 2 Max holds 512Wh to the Anker SOLIX C300's 288Wh — 224Wh more battery — and it accepts more than twice the solar input. That's the spine of the matchup: the Max is the bigger, faster-refilling energy tank, and the C300 is the more refined small box.
And it is more refined in ways that matter to the right buyer. The C300 runs near-silent at 25dB, offers a genuine 10ms line-interactive UPS the Max can't match, charges devices over dual 140W USB-C, and weighs four pounds less. On a desk with a modem, a laptop, and a monitor, it's the nicer companion — quiet, quick to switch over, quick to charge a laptop.
But capacity is what these jobs run out of, and the C300 runs out first. It falls short of a CPAP night the Max finishes, and off-grid its smaller battery and slower solar leave it behind on day two of a trip. For the buyer weighing raw usefulness across camping, outages, and overnight loads, the Max's extra 224Wh outweighs the C300's polish. For the buyer who mostly wants a silent desktop UPS, the calculus flips.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
solar input
The C300's headline advantage is those four fewer pounds, but off-grid that lightness is paid for in energy you run out of sooner and sun you soak up slower, so by the second morning of a trip the weight saving is the least of what you're thinking about.
RIVER 2 Max: 512Wh with 220W solar inputAnker SOLIX C300: 288Wh with 100W solar inputC300 is 9.1 lb vs the Max's 13.4 lb
Why it mattersThe boondocker drawn to the C300's portability should check whether they'll resent its slower solar and smaller tank by day two.
Capacity
A UPS has two jobs: catch the outage cleanly and then last through it, and these two split them — the C300 catches it more gracefully, the Max survives it longer, because 512Wh bridges a long outage that 288Wh can't.
C300 has a 10ms line-interactive UPSRIVER 2 Max has a ~30ms basic standby switchoverC300 holds 288Wh vs the Max's 512Wh
Why it mattersFor a desktop you must not lose, the C300's switchover wins; for keeping the router and lights alive through a long blackout, the Max's capacity does.
The Max's 62dB is a charging figure a light CPAP load never triggers, so at the bedside it's quiet enough and still running when the silent C300 has already died.
C300 is rated 25dB, near-silentC300's 288Wh falls short of a ~320Wh CPAP nightRIVER 2 Max covers that night at about 74% of usable charge
Why it mattersThe CPAP buyer seduced by the C300's 25dB should notice the quiet one can't finish the night the louder one does.
The specific dimensions that decide these two units — everything else is a tie.
What the Specs Don't Tell You
Selected because: Noise, UPS, and warranty all fire; the UPS card genuinely favors the C300 and needs honest crediting.
Three cards fire, and one of them goes cleanly to the C300 — worth saying plainly since the Max is the pick here. Its 10ms line-interactive UPS is a genuine step above the Max's roughly 30ms basic standby: faster, cleaner, the mode that actually keeps a desktop from rebooting when the grid hiccups. If your reason for buying is protecting a PC or a network rack, the C300 is the better guard, full stop.
The other two lean the Max's way once you read past the label. Noise favors the C300 by a wide margin, 25dB to 62dB, but the Max's figure is a fast-charge number a light load never triggers. Warranty is a tie at 5 years each — the C300 works out cheaper per covered year ($48 to $60) only because it's the cheaper unit. Net it out and the C300 wins the UPS and the quiet; the Max wins the energy behind them.
Your Life, Your Pick
Selected because: CPAP overnight flips to the Max — the clearest case where capacity beats refinement.
Most scenarios end in 'neither' — camping weekends, full blackouts, and van-life daily loads outrun both a 512Wh and a 288Wh unit, and there's no honest way to crown a winner of a race neither finishes. CPAP overnight is the split, and it goes to the Max: about three-quarters of its usable charge covers a roughly 320Wh night, while the C300 asks for more than it holds.
That's the result to weight, because it's the exact job the C300's other strengths seem built for and then can't complete. A 25dB unit with a real UPS sounds like the perfect bedside CPAP guardian right up to the point, before morning, when its battery is empty and the Max's isn't. When both units fall short of a scenario, the tiebreak is which falls short by less — and on capacity that's always the Max.
Runtime: Will It Power Your Gear?
Selected because: 512 vs 288Wh plus 220 vs 100W solar is the Max's core argument.
continuous output
512Wh against 288Wh is a 224Wh runtime lead that compounds off-grid, because the Max also refills that bigger tank from more than twice the solar — 220W to the C300's 100W. So the Max lasts longer per charge and gets back to full faster from a panel, which is the pairing that decides multi-day trips. The C300's smaller battery and slower solar mean it's the one rationing by the second afternoon.
Output tells the same story: 500W continuous on the Max to 300W on the C300, so the Max starts a wider band of devices — a bigger cooler, a corded tool — not just runs them longer. The C300 answers with faster device charging via dual 140W USB-C, which is a real edge for topping up a laptop, but topping up devices and running appliances are different jobs, and only one of them is capacity-bound.
Lifetime Value
Selected because: Max costs more up front but less per kWh; frames the capacity premium honestly.
cost / lifetime kWh
The Max costs about $60 more up front — $299 to roughly $240 — and less per kilowatt-hour once you count what it stores: around $0.19 per lifetime kWh to the C300's $0.28. That's the recurring shape of a good capacity upgrade: you pay a premium on the sticker and get a discount on the energy, which pays off precisely to the degree you use the extra battery.
If your loads never approach 288Wh, that per-kWh math is theoretical and the C300's lower price plus its UPS and silence make it the better value. If your loads regularly pass what the C300 holds, the Max is both the cheaper energy and the only one that finishes the job. The honest read: this is a value win for the Max only for buyers who'll actually spend its capacity.
Strengths & trade-offs
EcoFlow RIVER 2 Max
Strengths
- +Costs $11 less
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Can receive complaints about fan noise under heavy load.
Anker SOLIX C300
Strengths
- +Lighter by 4.3 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
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
RIVER 2 Max
The Max takes this one, and it's the scenario the C300's other strengths seem built for and then can't finish. A roughly 320Wh night leaves the RIVER 2 Max at about three-quarters of its usable charge; the C300's 288Wh comes up short before morning. A 25dB unit with a real UPS sounds like the perfect bedside CPAP guardian right up until its battery is empty and the Max's isn't.
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 covers a full remote workday — laptop, monitor, and peripherals total around 910Wh, past both units. The C300's dual 140W USB-C tops a laptop the fastest, but the Max's larger 512Wh keeps you working longer before you need the top-up. If your desk needs a full day unplugged, both come up short and you should size up.
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: RIVER 2 Max runs 2.1h vs 1.2h.
$289 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 0–29hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–5.8hHigh-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 16, 2026
Verdict: the RIVER 2 Max
Buy the RIVER 2 Max for capacity and charging; buy the C300 if silence and a genuine UPS matter more than runtime. The Max holds 512Wh to the C300's 288Wh, takes more than twice the solar input (220W vs 100W), costs less per kilowatt-hour, and is the only one that carries a CPAP to morning. The C300 earns real points the Max can't match — a near-silent 25dB, a true 10ms line-interactive UPS, and dual 140W USB-C — but those are desk-and-nightstand virtues, and the C300 runs out before a CPAP night ends. For most cross-shoppers the Max's extra battery is the deciding factor; for a specific silent-desk buyer, the C300 is the smarter tool.
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 Anker's current prices.
$289.00 list · direct from EcoFlow
or check the SOLIX C300 price$299.99 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
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 Max rates 3.9/5 (33rd percentile of 19 Compact-class units), and SOLIX C300 rates 4.4/5 (67th 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.
Silent desk unit vs scheduled roar
The C300 is the quiet one and it isn't close — 25dB, near-silent, ideal on a desk or nightstand, against the Max's 62dB. But that 62dB is a fast-charge figure a light load never triggers, and the catch cuts the other way: the silent C300 can't finish a CPAP night the noisier Max can. Quiet you can't sustain past 3 a.m. isn't the spec a bedside buyer needs.
The C300 wins this one outright
Credit where it's due: the C300's 10ms line-interactive switchover is a genuine UPS — fast and clean enough to keep a desktop or router from rebooting on an outage — where the Max's roughly 30ms basic standby is the weaker mode and can blink sensitive gear. If you're guarding a PC you can't lose, buy the C300. The Max's only answer is capacity: it holds the load up nearly twice as long once the lights go out.
Full record above — the Test Desk pick is the RIVER 2 Max.
Check RIVER 2 Max price →or check the SOLIX C300 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 2 Max wins on both sticker price and long-term value. At $0.19/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
Delivers each lifetime kWh for $0.16 less — check the RIVER 2 Max 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, and chat, with polarized results — many get hassle-free prepaid-label swaps, some report long waits. Buying through Costco or Amazon adds a stronger return backstop.
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 runs the deepest lineup in portable power and iterates fastest; X-Stream charging — the roughly one-hour refill here — and the polished app are its signatures. If you might grow into a larger DELTA later, the ecosystem is already built out.
Worth knowing
EcoFlow floated app-feature paywalls in early 2025 before backlash paused them, and there was an unrelated 2025 DELTA recall. Neither touches this unit — they're the cost of a fast-moving brand.
Anker
Ecosystem
7-8 SOLIX portable power stations across C-series (compact) and F-series (flagship), plus the X1 home energy system
Support
Historically famous for no-hassle replacements, though recent reports describe AI-driven agents giving generic answers and awkward hazmat return logistics for heavier units — SOLIX-specific support quality is trending down from its old high bar.
Community
Moderate — active Reddit (r/Anker, r/AnkerSOLIXCommunity) and growing. Benefits from Anker's massive consumer electronics brand awareness.
App experience
Rated 4.5/5 iOS (~1,100 ratings) · 4.3/5 Android
Unique strength
Anker brings parent-brand trust from its consumer-electronics dominance, InfiniPower cells built for long cycle life, and some of the best dollar-per-Wh value in its Gen 2 lineup.
Worth knowing
Firmware updates have removed features without warning, and the expansion ecosystem is smaller than EcoFlow's — fine for a fixed-size unit like the C300, worth knowing if you expected to grow.
Analyst note
Both are strong, consumer-electronics-backed brands, so neither pick is a reliability gamble on these units. The difference is direction: EcoFlow is deeper and faster-moving with genuinely mixed support, while Anker carries a sterling reputation whose SOLIX support is quietly slipping. Buy the C300 for the hardware it wins on today, not for a support edge that used to be Anker's to claim.
Growth path
RIVER 2 Max
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 220W of solar. Limited to a single portable panel.
Adequate ports for most setups, but heavy users may want a power strip.
SOLIX C300
FIXED CAPACITYFixed at 288Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 100W of solar. Limited to a single portable panel.
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 Max 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 Max
The EcoFlow app is the RIVER 2 Max's quiet advantage — owners single it out for clean remote monitoring and charge-speed control over Wi-Fi and Bluetooth, the kind of software polish smaller rivals rarely matchA3. Pair that with a roughly one-hour full recharge via X-StreamA2 and you get a unit that's genuinely easy to keep topped up and manage from the couch.
The hardware backs it: 512Wh in about 13 pounds, light for the capacity and lighter than some Li-ion units of similar sizeA1, with upgraded LFP rated near 3,000 cycles — one field test ran a telescope, a 65-inch TV, two laptops, and phones through a four-hour event with charge to spareA4. The field record here is about what it does well, not what goes wrong.
“512Wh in a light package of about 13 lbs, lighter than some of its closest competitors that use Li-Ion chemistry.”
Sources
storagereview.com · backuppowerhub.com · gagadget.com · ecoflow.com · thecampingnerd.com · thetechnologyman.com · bestbuy.com
Anker SOLIX C300
The C300's reputation is compact competence. Reviewers call it impressively light and small for its 288Wh — Anker pitches it as 30% smaller than competing stations — and aim it squarely at keeping phones and gadgets charged on hikes and camping tripsB2. Its dual 140W USB-C ports are a standout for fast device chargingB1.
The feature owners flag as genuinely rare is the UPS: a 10ms line-interactive switchover that's unusual at this size and price, the kind of thing you normally step up a class to getB3. Reviewers frame the C300 as a pick for buyers who prize reliability, smart features, and a compact footprintB4. It's a positive record overall — the reservations are about capacity ceiling, not defects.
“288Wh capacity with 300W output (600W with SurgePad) and dual 140W USB-C ports for fast device charging.”
Sources
ankersolix.com · trustedreviews.com · im.com.au · solarwaypoint.com · backuppowerhub.com · powerstationlab.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
- Light weight, fast roughly-one-hour charging, and a simple capable app are the standout praise for this 512Wh unit. [RIVER 2 Max · 3 entries]
- Compact, light design; dual 140W USB-C fast charging; and a standout 10ms UPS rare at this size are the highlights. [SOLIX C300 · 3 entries]
- A1
“512Wh in a light package of about 13 lbs, lighter than some of its closest competitors that use Li-Ion chemistry.”
storagereview.com / backuppowerhub.com — RIVER 2 Max review · 2026 · [positive]
- A2
“Fully charges in about 60 minutes via X-Stream charging — far faster than most portable power stations — with multiple charging options.”
gagadget.com / ecoflow.com — RIVER 2 Max review · 2026 · [positive]
- A3
“The EcoFlow app offers simple remote control and monitoring over WiFi and Bluetooth — view charge levels, customize settings, and adjust charging speed from a phone.”
thecampingnerd.com / ecoflow.com — RIVER 2 Max review · 2026 · [positive]
- A4
“Upgraded LFP chemistry rated for about 3,000 cycles, roughly a decade of everyday use; in field testing it powered a telescope, a 65-inch LED TV, two laptops, and phones through a 4-hour event with power to spare.”
thetechnologyman.com / bestbuy.com owner reviews — RIVER 2 Max · 2026 · [positive]
- B1
“288Wh capacity with 300W output (600W with SurgePad) and dual 140W USB-C ports for fast device charging.”
ankersolix.com / trustedreviews.com — SOLIX C300 review · 2026 · [positive]
- B2
“Anker claims the C300 is 30% smaller than competing power stations; reviewers call it impressively light and compact for the capacity, aimed at keeping phones and gadgets charged on hikes and camping trips.”
im.com.au / solarwaypoint.com — SOLIX C300 review · 2026 · [positive]
- B3
“Its 10ms UPS switchover is legitimately unique in this size and price class.”
backuppowerhub.com / powerstationlab.com — SOLIX C300 review · 2026 · [positive]
- B4
“Targets users who value reliability, smart features, and compact design.”
backuppowerhub.com — SOLIX C300 review · 2026 · [positive]
Research compiled July 16, 2026.
Who Should Buy Which
Buy the RIVER 2 Max if you…
- →Anyone with an overnight CPAP or medical load — the Max finishes the night at about three-quarters charge; the C300 doesn't finish it at all.
- →Off-grid and van users, where 512Wh plus 220W of solar means a bigger tank that also refills twice as fast between days.
- →Buyers who'll actually use the capacity and want the lower cost per kilowatt-hour and the cleaner app.
Buy the SOLIX C300 if you…
- →The silent-desk buyer who wants a real UPS for a modem, router, or PC that can't take a reboot — the C300's 10ms line-interactive switchover is the standout here.
- →Someone charging a USB-C laptop fast and often who values the dual 140W ports and near-silent 25dB operation.
- →The lightest-load, most-portable user who stays under ~288Wh and prizes the four-pound weight saving.
If neither fits
If your plan involves a camping weekend, a full 8-hour fridge blackout, or van-life daily loads, both fall short — even 512Wh won't cover those. Step up to a 1,000Wh-plus unit rather than buying either of these and rationing by dinner.
The Bottom Line
Buy the RIVER 2 Max if you want energy and buy the C300 if you want a silent UPS — and be honest with yourself about which you actually need. The Max holds 224Wh more, refills from twice the solar, costs less per kilowatt-hour, and is the only one that carries a CPAP to morning. That's the deciding weight for most people cross-shopping these two.
The C300 is no consolation prize — its 10ms line-interactive UPS, 25dB hush, and dual 140W USB-C are things the Max genuinely can't match, and for a desk with a router and a laptop it's the better tool. But those are refinements on a smaller battery, and capacity is what these jobs run out of. Need it to last? Take the Max. Need it to guard a quiet desk? The C300 has the case.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the RIVER 2 Max or the Anker SOLIX C300 better?
It depends on what you're protecting. The Max holds 512Wh to the C300's 288Wh, takes twice the solar, and is the only one that lasts a CPAP night — better for runtime and off-grid use. The C300 is quieter (25dB), has a genuine 10ms UPS, and charges devices faster over dual 140W USB-C — better as a silent desktop guardian. Most buyers want the capacity; a specific desk-and-UPS buyer wants the C300.
Does the C300 have a better UPS than the RIVER 2 Max?
Yes. The C300 offers a 10ms line-interactive switchover, a truer UPS mode than the Max's roughly 30ms basic standby, and it's clean enough to keep a desktop or router from rebooting on an outage. The Max's counter is capacity — its 512Wh keeps the load running far longer once the power's out. Fast switchover versus long runtime is the real tradeoff.
Can the Anker C300 run a CPAP overnight?
Not for a full night — its 288Wh falls short of the roughly 320Wh a CPAP draws, so it's likely to run out before morning despite being near-silent. The RIVER 2 Max covers the same night on about three-quarters of its usable charge. If overnight CPAP power is the goal, the Max is the safer pick even though it's louder on paper.
Which charges faster and which lasts longer?
The C300 charges devices faster over dual 140W USB-C, but the Max refills itself faster from solar (220W vs 100W) and holds nearly twice the energy, so it lasts longer per charge. For topping up a laptop at a desk, the C300 wins; for running things through a long outage or a multi-day trip, the Max does.
Where to buy

EcoFlow RIVER 2 MaxPick
$289.00
$289.00 list · direct from EcoFlow

Anker SOLIX C300
$299.99
$299.99 list · direct from Anker
Prices may vary by retailer and are subject to change.