Head-to-head test
EcoFlow RIVER 2 Max vs Goal Zero Yeti 500
Usually the cheaper power station is the one that costs more to run. Not this time — the RIVER 2 Max is cheaper to buy and cheaper per kilowatt-hour, so the Yeti 500 is left charging a premium for cycle count and UPS speed most buyers won't miss.
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
Goal Zero
Yeti 500
1,862Power Score · Device Hub
$499.95 list · direct from Goal Zero
Spec deltas
Two compact LFP power stations that both land right around 500Wh — 512 for the RIVER 2 Max, 499 for the Yeti 500, a 13Wh gap you'll never feel. What you will feel is the price: $299 for the EcoFlow, $499.95 for the Goal Zero.
The RIVER 2 Max is the pick, and not by a hair. It's cheaper up front, lighter to carry, quicker to recharge, and — the part that usually breaks the other way — cheaper to own across its whole life. The cheaper box is rarely also the cheaper one to run. This time it is.
The Yeti 500 isn't outclassed; it's out-priced. It carries a higher cycle rating, a faster UPS handoff, and a rugged US-built reputation, and if one of those is exactly what you need, it's a fair buy. For everyone else, it's a premium without a payoff.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
It doesn't here. The Yeti costs about two-thirds more to buy but delivers only about a third more lifetime energy, so it lands as the more expensive unit per kilowatt-hour — $0.19 for the RIVER against $0.25 for the Yeti. The cheaper box to buy is also the cheaper one to run, which almost never happens.
The RIVER 2 Max lists at $299; the Yeti 500 at $499.95The Yeti's higher cycle rating gives it 1,996 kWh of lifetime energy to the RIVER's 1,536Both are sealed LFP units in the same ~500Wh class
Why it mattersIf cost matters to you in any form, up front or over the years, the RIVER wins both columns — buy it and pocket the difference.
For a laptop, a router, or anything with its own battery or buffer, a 30ms handoff is invisible. The Yeti's faster catch earns its keep only when a bare desktop or a similarly unforgiving device is plugged in — a real reason to pay more, but a narrow one.
The Yeti 500 hands off in 10ms as a line-interactive UPS; the RIVER 2 Max in 30ms on basic standbyA laptop, router, or phone charger carries its own brief ride-throughA bare desktop tower does not
Why it mattersBuy the Yeti if a specific always-on device would trip on a 30ms blink; otherwise the RIVER protects the same gear for less.
The CPAP night alone eats about three-quarters of usable capacity — a tight single night, not two. Step up to a real outage, better than three times what either unit holds, and both tap out; since neither expands, there's no adding capacity later to rescue the choice.
A CPAP's overnight draw is about 320Wh — the one scenario either unit fully coversAn eight-hour fridge-and-lights blackout wants about 1,645Wh; a full remote workday about 910WhNeither unit is expandable
Why it mattersIf your real load is bigger than one modest overnight job, skip both and buy a 1kWh-class unit instead.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: The $299 correction flips cost-to-own to the RIVER — this is now the whole story and must lead.
cost / lifetime kWh
Normally the cheaper unit quietly claws some of that discount back — fewer cycles, less capacity, a shorter warranty — so the gap narrows the longer you own it. Here the gap does the opposite. The RIVER is cheaper the day it ships and cheaper for every kilowatt-hour it delivers across its rated life, so time only widens its lead.
The Yeti's longer cycle life is the card that's supposed to flip this, and on a spec sheet it looks like it should. It doesn't, because the price premium you pay to get those cycles runs steeper than the value the cycles return. You end up buying more lifespan than the unit's price can ever earn back — longevity you paid extra for and will likely never cash in on a box this small.
What the Specs Don't Tell You
Selected because: The head-to-head trade: RIVER's price/weight/charge vs Yeti's cycles/UPS, all priced backwards.
rated cycles
Stack the differences and they lean one way. The RIVER is cheaper, lighter, faster to charge, and holds a touch more capacity; the Yeti answers with a longer cycle rating, a quicker UPS, and a rugged weather-sealed shell. That would be an even trade if the two units cost the same — but the cheaper one is the one taking most of the everyday rounds.
Warranty is the one true wash: identical coverage on both, which just means the RIVER spreads the same protection over less money. Everything else sorts cleanly — the Yeti's wins pile up in longevity and backup, the RIVER's in price, weight, and charge time. The question the page keeps asking is why the smaller pile costs more.
Portability & Form Factor
Selected because: The RIVER's lighter body and one-hour charge define its everyday case.
weight
Three pounds sounds trivial until the unit is going in and out of a car for the tenth time this season. The RIVER is 13.4 lbs — a genuine one-hand lift; the Yeti's 16.5 is still carryable, but it's the kind of difference your back files away by the end of a camping trip, not the start of one.
Charge time stretches the gap further. The RIVER tops off in about an hour on X-StreamA2 — enough to fill it while you load the car. The Yeti's extra weight buys cycle life, not a faster refill, so anything you'll actually carry and top off between trips tilts to the RIVER.
Brand Trust
Selected because: EcoFlow volume/charging vs Goal Zero heritage/rugged — frames what the premium actually buys.
The two badges point in opposite directions. EcoFlow is the volume brand — the deepest catalog in portable power and the fastest charging tech in the class. Goal Zero is the heritage name: US-built, rugged, weather-sealed, with a loyal following in overlanding and prep circles.
For this matchup the brand question is narrow, because neither is a gamble — both are established, both are supported, and neither has a flawless service record. What you're really deciding is whether Goal Zero's pedigree and build quality are worth a real premium over a cheaper, faster, better-connected EcoFlow. For most buyers, that's a no.
Strengths & trade-offs
EcoFlow RIVER 2 Max
Strengths
- +Costs $211 less
- +Lighter by 3.1 lb
- +Larger battery capacity
- +Faster solar charging
Trade-offs
- –Can receive complaints about fan noise under heavy load.
- –Shorter-lived battery — rated for 3,000 charge cycles vs the Yeti 500's 4,000, so it wears out sooner.
Goal Zero Yeti 500
Strengths
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$211) than the RIVER 2 Max.
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 covers this, and it isn't a near miss. A fridge plus lights and devices across eight hours wants roughly 1,645Wh — better than three times what either ~500Wh station holds. The Yeti can carry a fridge on its own for a few hours, which is the honest ceiling for this class, but a full multi-load outage is simply the wrong job for a 500Wh box. Buy a 1kWh-plus unit for blackout duty.
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
Either unit
The one job on this list either unit clears — and even here it's snug. A CPAP's overnight draw lands around three-quarters of usable capacity on both, so count on a single tight night per charge, not two. If you're splitting hairs, the RIVER is lighter on the nightstand and cheaper for the same night of power. One note for light sleepers: the RIVER is the unit with a published loud-under-load rating, though a CPAP's low draw rarely pushes any station to full fan.
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 day of laptop, monitor, and router runs near 910Wh — closer to the line than a blackout, but still more than either unit gives on one charge. You'll get a comfortable half-day, or a laptop-only stretch that lasts, from both. For a complete untethered workday with no top-up, this size class comes up short.
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
Dead heat — both run this 205W load for roughly 2.1h. Pick on price, weight, or ports.
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 13, 2026
Verdict: the RIVER 2 Max
Take the RIVER 2 Max. At $299 it undercuts the $499.95 Yeti 500 by $201, and it's the cheaper unit to own on top of that — not the usual trade where a lower sticker hides higher running costs. It's also 3.1 lbs lighter and refills in about an hour. The Yeti 500 earns its price back in only two places: a 4,000-cycle rating, the longest in this size, and a faster line-interactive UPS that hands off quicker than the RIVER's basic standby, worth paying for if you're backing up a bare desktop or a similar always-on load. For value, portability, and everyday use, the RIVER; for maximum cycle life or that faster backup handoff, the Yeti.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 13, 2026. The links below open EcoFlow's and Goal Zero's current prices.
$289.00 list · direct from EcoFlow
or check the Yeti 500 price$499.95 list
Written by Wenny Zheng, Portable Power Tester · Station Arena Test Desk · Updated July 13, 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 Max rates 3.9/5 (33rd percentile of 19 Compact-class units), and Yeti 500 rates 4.7/5 (81st 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.
The RIVER's fan earns its rating
Under heavy load the RIVER 2 Max is rated at 62dB — vacuum-cleaner territory, not a background hum — so it's the wrong unit for a silent bedroom or a recording space while it's working hard. At light loads it quiets right down, but the full-tilt figure is a genuine mark against it, and it's the honest catch on our pick.
A faster handoff, if you need one
The Yeti 500's line-interactive UPS catches a power cut faster than the RIVER's basic standby. For a laptop, router, or phone charger that difference is invisible — they ride through the gap on their own. For a bare desktop or anything that reboots on the slightest interruption, the Yeti's quicker catch is the safer bet, and it's the Yeti's most useful edge in daily life.
Same five years, less money
Both units carry a five-year warranty, so coverage length settles nothing here. The only wrinkle is arithmetic: the RIVER spreads that identical warranty over a lower price, so every year of coverage simply costs you less.
More years on paper than you'll use
The Yeti 500's pack is rated for more charge cycles than the RIVER's — roughly 11 years of daily use to the RIVER's 8. The extra life is real, but it doesn't lower what the Yeti costs to own, because its price premium outruns it. In a station this small, it's longevity most owners will never reach.
The Yeti's quiet is unverified
Goal Zero doesn't publish a decibel figure for the Yeti 500, so its loudness is an unknown rather than a proven advantage. The RIVER at least tells you exactly where it stands. Treat the Yeti as quiet-until-measured, not guaranteed silent.
Full record above — the Test Desk pick is the RIVER 2 Max.
Check RIVER 2 Max price →or check the Yeti 500 priceOwnership Analysis
What happens after you buy — true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.
Analyst note
The 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.
Brand trust
EcoFlow
Ecosystem
The deepest lineup in portable power — a dozen-plus models from the RIVER minis up to the DELTA Pro series, plus solar panels and home-integration gear. Start here and grow, and there's always a bigger unit waiting.
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
X-Stream is the fastest charging in the class, and the EcoFlow app is among the best-rated in the category for remote monitoring and control.
Worth knowing
Support runs hot and cold — plenty of painless warranty swaps, but also reports of long waits and refurbished units on new claims, so buying through Costco or Amazon adds a safety net. An unrelated DELTA Max 2000 was recalled in late 2025, worth knowing even though it doesn't touch the RIVER 2 Max.
Goal Zero
Ecosystem
Focused rather than sprawling — a handful of Yeti and Yeti Pro stations plus Nomad and Ranger panels, coolers, and vehicle kits, all designed to click together.
Support
US-based company (Salt Lake City, owned by NRG Energy). Historically considered premium support, but 2025-2026 reports describe long wait times, unresponsive email communication, and tickets going unaddressed for weeks. The "premium support justifies premium pricing" argument is weakening.
Community
Small but loyal — strong following in overlanding and preparedness communities. Official community forums were recently shuttered, frustrating long-time users.
App experience
Rated 4.4/5 iOS (~1,200 ratings) but recent reviews skew negative — recurring connectivity issues, crashes, and stability problems.
Unique strength
The heritage name in portable power: US-built, ruggedized and weather-resistant, with a loyal overlanding and preparedness following.
Worth knowing
It's the priciest brand per watt-hour in the space, and its once-premium support has drawn slower-response complaints of late; the company also recently closed its community forums. The pedigree is genuine, and so is the markup.
Analyst note
EcoFlow and Goal Zero anchor opposite ends of the same market — the fast-moving volume brand with the deepest catalog and the quickest charging, against the heritage US name selling ruggedness and a trusted badge. Neither service record is spotless. For this pair the split is clean: you pay the Goal Zero premium for pedigree and build, not for a better or longer night of power, because the RIVER already leads on price, weight, charge speed, and cost to own.
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.
Yeti 500
FIXED CAPACITYFixed at 499Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
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.
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
Reviewers keep circling the same three strengths, and they're the ones that matter for a grab-and-go unit: weight, charge speed, and the app. It's lighter than the Li-Ion competitionA1, a full charge lands in roughly an hour on X-StreamA2, and the EcoFlow app handles remote monitoring and charge-speed control over WiFi and BluetoothA3.
The field record matches the spec sheet. One owner ran a telescope, a big-screen TV, two laptops, and phones through a four-hour event and still had headroom leftA4. Small unit, but a quick-charging, well-connected one that does what it claims.
“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
Goal Zero Yeti 500
The Yeti's whole case is longevity and backup, and the notes back both. Its LiFePO4 pack is rated 4,000+ cycles — better than a decade of daily cyclingB1 — and Goal Zero rates it to keep a full-size fridge running for up to six hours during an outageB2.
It's the newer LFP version, a real step up from the NMC Yeti 500X it replacesB3, and one long-term reviewer logged extended cycling with only minor degradationB4. The knocks are the ones the spec sheet predicts: heavier, pricier, and no quicker to refill.
“The Yeti 500's LiFePO4 battery is rated for 4,000+ cycles, meaning daily use for over 10 years (to 80% capacity at 75F).”
Sources
goalzero.com · rei.com · propaneva.com · portablepowernerd.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]
- High 4,000+ cycle LFP rating and outage-backup capability (including running a fridge for hours) are the standout points. [Yeti 500 · 2 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
“The Yeti 500's LiFePO4 battery is rated for 4,000+ cycles, meaning daily use for over 10 years (to 80% capacity at 75F).”
goalzero.com / rei.com — Yeti 500 LFP · 2026 · [positive]
- B2
“Acts as a backup power supply when the grid drops — you can plug a full-size refrigerator directly in for up to six hours of runtime to prevent food waste.”
goalzero.com — Yeti 500 backup · 2026 · [positive]
- B3
“Weighs about 16 lbs, upgraded to LiFePO4 battery technology from the older NMC-based Yeti 500X.”
goalzero.com / propaneva.com — Yeti 500 review · 2026 · [mixed]
- B4
“One 2026 reviewer completed 180+ charge/discharge cycles with minimal observed degradation.”
portablepowernerd.com — Yeti 500 long-term review · 2026 · [positive]
Research compiled July 13, 2026.
Who Should Buy Which
Buy the RIVER 2 Max if you…
- →You want the most station for the least money — it's the cheaper buy and the cheaper unit to own, full stop.
- →You'll carry it. For campsites, road trips, and tossing it in the trunk, the lighter body and one-hour chargeA2 are what you notice.
- →You'd actually use the app — monitoring charge and dialing in charge speed from your phoneA3.
Buy the Yeti 500 if you…
- →You're protecting a specific always-on load — a desktop, a home server, anything a 30ms blink would trip — and want the faster line-interactive UPS.
- →You want the longest-rated pack in this size and plan to cycle it hard for a decade or moreB1.
- →You value a rugged, US-built, weather-sealed unit and Goal Zero's accessory ecosystem, and the premium is fine by you.
If neither fits
Neither is enough unit for a real outage. A fridge plus lights and devices through an evening, or a full untethered workday, runs several times past what either one holds — and since neither expands, you can't grow into it later. If that's your list, skip both and buy a 1kWh-class station instead.
The Bottom Line
The RIVER 2 Max is the pick, and the reason outlasts every other trade on the page: it's the cheaper unit to buy and the cheaper unit to own. The Yeti's longer cycle life is supposed to erase that head start, but its price premium runs steeper than its cycle edge, so the discount you'd skip by buying the Yeti never actually comes back to you.
The Yeti 500 keeps a real niche — a faster UPS for a bare desktop, the highest cycle rating in its class, a rugged build wearing a badge people trust. If you need one of those, buy it with clear eyes. Everyone else is choosing a lighter, faster-charging station that costs less to buy and less to run. Get the RIVER 2 Max.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
EcoFlow RIVER 2 Max vs Goal Zero Yeti 500 — which is better?
The RIVER 2 Max for almost everyone. At $299 it's $201 less than the $499.95 Yeti 500, it's lighter, it charges in about an hour, and it's cheaper to own per kilowatt-hour on top of the lower price. Choose the Yeti 500 only if you specifically need its faster line-interactive UPS or the highest cycle rating in this size, and don't mind paying a premium for it.
Is the Goal Zero Yeti 500 worth the extra money?
Only for specific needs. The Yeti 500 costs more up front and more per kilowatt-hour over its life, so buying it doesn't save you money later. The premium buys a faster UPS handoff, a higher cycle rating, and a rugged US-built design — worth it if you need those things, hard to justify for general portable power.
Which lasts longer, the RIVER 2 Max or the Yeti 500?
The Yeti 500 on paper — its LFP pack carries a higher cycle rating than the RIVER's, over a decade of daily use. But it costs more to buy, so those extra cycles mostly repay the price difference rather than saving you anything, and both are LFP units that will outlast most people's need for a station this small.
Which charges faster?
The RIVER 2 Max, and it's not close — a full recharge in about an hour with EcoFlow's X-Stream charging. Paired with its lighter weight, that's what makes it the better travel and grab-and-go unit. The Yeti 500 has no comparable fast-charge mode.
Can either one run a refrigerator during a power outage?
For a few hours, not a full outage. Goal Zero rates the Yeti 500 to keep a full-size fridge going up to six hours, and the RIVER 2 Max holds comparable capacity — but a realistic outage of a fridge plus lights and phones needs several times what a ~500Wh unit stores. For genuine blackout backup, step up to a 1kWh-or-larger station.
Where to buy
EcoFlow RIVER 2 MaxPick
$289.00
$289.00 list · direct from EcoFlow
Goal Zero Yeti 500
$499.95
$499.95 list · direct from Goal Zero
Prices may vary by retailer and are subject to change.