Head-to-head test
EcoFlow RIVER 3 MAX PLUS vs BLUETTI AC70P
Nearly the same size battery, and only one is still on sale. A new buyer gets the AC70P's bigger inverter and larger solar input. Owners keep the EcoFlow's quieter rating and quicker UPS.
Full profiles: EcoFlow RIVER 3 MAX PLUS β Β· BLUETTI AC70P β
Written by Ian SchneiderUpdated
Solar & Off-Grid Tester, Station Arena Test Desk
Spec deltas
EcoFlow has stopped selling the RIVER 3 Max Plus. It was the RIVER 3 Plus with EcoFlow's larger add-on battery attached. For a new buyer, the AC70P is the one of these two still on sale, and EcoFlow's nearest live unit at this size is the RIVER 2 Pro.
The batteries are a near match at about 860Wh. The AC70P runs 1,000W continuous to EcoFlow's 600W, and its solar input accepts more than twice as much.
My cabin runs on solar, so that second gap is the one I'd feel every day. Solar input is the most panel power a unit will accept, and anything past it is wasted. On a few hours of winter sun, the Max Plus's 200W ceiling would have me waiting on a second day to fill up.
What the Numbers Reveal
Each conclusion stated first β the numbers behind it on one line, the full analysis below.
continuous output
A 600W ceiling covers laptops, lights and small electronics. A full-size coffee maker or a space heater can draw that much on its own.
RIVER 3 Max Plus holds 858Wh versus the AC70P's 864WhRIVER 3 Max Plus runs 600W continuous; the AC70P runs 1,000W
Why it mattersAn appliance that pulls between 600W and 1,000W runs at full power only on the AC70P.
solar input
From empty at full input, that is about four hours for the Max Plus and under two for the AC70P.
RIVER 3 Max Plus's solar input caps at 200WAC70P's solar input caps at 500W
Why it mattersFor an outage you plan to ride out on panels, that gap comes back every day.
The specific dimensions that decide these two units β everything else is a tie.
Growth Path
Selected because: The AC70P is sealed, which changes what a new buyer should plan for.
solar input
Lifetime Value
Selected because: Both carry the same cycle rating, and only the AC70P has a live price.
The Max Plus has no current price, so it gets no cost per lifetime kWh here. The AC70P works out to $0.19 per kWh, its price divided by every kWh the battery is rated to deliver.
Both are rated for 3,000 cycles, one cycle being a full drain and refill, so an owner keeping a Max Plus gives up nothing in rated lifespan.
What the Specs Don't Tell You
Selected because: Noise, expansion, Power Lifting, UPS speed and warranty terms all come up here.
UPS mode is the handover to battery when the wall power drops. Routers ride through either rating, and the fussiest desktop power supplies sit right at the AC70P's slower line.
Brand Trust
Selected because: A cross-brand pair where support records differ.
Both brands have uneven support records. EcoFlow's runs from smooth prepaid-label replacements to long waits, and it offers no parts or service once the warranty ends. BLUETTI's is mostly by email, with delays from the time difference to China.
A big retailer gives you the stronger return path on EcoFlow. With BLUETTI, buying direct tends to go better. Its app is well rated on both iPhone and Android.
Strengths & trade-offs
EcoFlow RIVER 3 MAX PLUS
Strengths
- +Lighter by 1.7 lb
Trade-offs
- βNo major technical downsides compared to rival.
BLUETTI AC70P
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- βNo 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 Β· 2 nights Β· needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
Neither unit
Neither unit covers this scenario's 2,100Wh: the RIVER 3 MAX PLUS comes up 1,371Wh short (about 35% covered), the AC70P 1,366Wh (35%). Treat this as partial cover β enough for the essentials in it, not the whole list.
Battery budget usedlower = more headroom
LOADΒ Β Phone Charger 15WΓ6h Β· LED Lights 40WΓ8h Β· Box Fan 75WΓ14h Β· CPAP Machine 40WΓ16h
SCN-02 Β· 8 hours Β· needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
Neither unit
Neither unit covers this scenario's 1,645Wh: the RIVER 3 MAX PLUS comes up 916Wh short (about 44% covered), the AC70P 911Wh (45%). Treat this as partial cover β enough for the essentials in it, not the whole list.
Battery budget usedlower = more headroom
LOADΒ Β Fridge 150WΓ8h Β· Router + Modem 20WΓ8h Β· LED Lights (4 bulbs) 40WΓ6h Β· Phone Charger 15WΓ3h
SCN-03 Β· 8 hours Β· needs 320Wh
CPAP Overnight
Sleep therapy without interruption β the #1 medical use case
RIVER 3 MAX PLUS
Both cover the night at least twice over. The tiebreak is noise. The Max Plus's 30dB is a ceiling and the AC70P's 45dB is a floor, so the EcoFlow is quieter on paper. Neither figure is a reading at a CPAP's low draw.
Battery budget usedlower = more headroom
LOADΒ Β CPAP Machine 40WΓ8h
SCN-04 Β· 8 hours Β· needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
Neither unit
Neither unit covers this scenario's 910Wh: the RIVER 3 MAX PLUS comes up 181Wh short (about 80% covered), the AC70P 176Wh (81%). Either gets you most of the way, so this is a scenario you plan around rather than one you should rule them out for.
Battery budget usedlower = more headroom
LOADΒ Β Laptop 60WΓ8h Β· External Monitor 30WΓ8h Β· Router + Modem 20WΓ8h Β· Phone Charger 15WΓ2h
SCN-05 Β· 4 hours Β· needs 670Wh
Tailgate Party
Game day power for the crew
Either unit
Both finish it with little left over. The Max Plus is the lighter carry at 20.8 lb, but EcoFlow no longer sells it, so the AC70P is the one to plan around.
Battery budget usedlower = more headroom
LOADΒ Β Blender 400WΓ0.5h Β· LED TV (55") 80WΓ4h Β· Bluetooth Speaker 15WΓ4h Β· Phone Charger (Γ3) 45WΓ2h
SCN-06 Β· 24 hours Β· needs 4,685Wh
Van Life Daily
A full day of mobile living β the ultimate endurance test
Neither unit
Neither unit covers this scenario's 4,685Wh: the RIVER 3 MAX PLUS comes up 3,956Wh short (about 16% covered), the AC70P 3,951Wh (16%). 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
LOADΒ Β Mini-Fridge 150WΓ24h Β· Laptop 60WΓ4h Β· Phone Charger 15WΓ3h Β· LED Lights 40WΓ5h Β· Fan 75WΓ8h
The Load Test
RUNTIME = (Wh Γ 0.85) Γ· 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
Dead heat β both run this 205W load for roughly 3.6h. Pick on price, weight, or ports.
Planning for more than this? Describe your whole setup and get it sizedΒ β
Modeled from the spec record β same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.ΒΉ
Essentials
The basics you need runningscale 0β49hComfort & Convenience
Makes off-grid life actually enjoyablescale 0β9.8hHigh-Draw Appliances
These reveal the real limitsscale 0β0.7hΒΉ Runtime = (capacity Γ 0.85) Γ· 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 β see methodology.
Conclusion
October 25, 2026
Verdict: the BLUETTI AC70P
EcoFlow no longer sells the RIVER 3 Max Plus, so the AC70P is the one of these two you can buy. It earns the spot on its own terms as well. It runs 1,000W continuous to the Max Plus's 600W and takes more than twice the solar, on almost the same size battery. The Max Plus kept a quieter noise rating and a faster UPS rating, which still count for anyone who owns one.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of October 25, 2026. The links below open BLUETTI's current price.
$499.00 Β· direct from BLUETTI
Last checked 28 days ago. Prices move β check before you buy.
Written by Ian Schneider, Solar & Off-Grid Tester Β· Station Arena Test Desk Β· Updated October 25, 2026
Black Friday Β· 26 days out
Price to beat:AC70P $499
We have never seen it discounted, so any real cut would be a first.
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Full specifications
α΅ Derived: price Γ· rated capacity. See the data behind our comparisons β
Comparison ToolAdd more power stations, side by sideOpen Tool βHow these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it β no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews β see Sources & Research Notes below.
Runtime model
Runtime = (rated capacity Γ 0.85 inverter efficiency) Γ· 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 βClass ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews β 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 5β . Here, RIVER 3 MAX PLUS rates 4.9/5 (95th percentile of 20 Compact-class units), and AC70P rates 4.5/5 (68th percentile of 20 Compact-class units).
How the class ranking is computed βTest Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
Noise: 30dB Ceiling vs 45dB Floor
EcoFlow publishes 30dB as the most the Max Plus reaches under heavy charge and discharge. BLUETTI's 45dB is the AC70P's best case, about a running refrigerator. Beside a bed, expect to hear the AC70P's fan.
AC70P: Fixed Capacity
The AC70P is sealed at 864Wh, and for a new purchase that is what you get. The RIVER 3 Max Plus already ships with EcoFlow's larger add-on battery attached.
AC70P: Power Lifting, Resistive Loads Only
Power Lifting runs a resistive appliance rated up to 2,000W from the 1,000W inverter by giving it less power than it asks for. A heater still heats, just more slowly. A compressor or a power tool gets no help, so for motors read the separate surge rating. The Max Plus has its own extended output mode for resistive loads.
UPS Switchover: β€10ms vs β€20ms
The Max Plus is rated no worse than 10ms, the AC70P no worse than 20ms. These are ratings, not our measurements.
Warranty: No Difference
Both carry 5 years. The AC70P's term assumes you buy direct from BLUETTI or register the unit, since reseller purchases carry a shorter term.
Full record above β the Test Desk pick is the AC70P.
Check AC70P price βOwnership Analysis
What happens after you buy β 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
β warranty ends Β· Reaching the cycle rating means ~80% capacity remains β degraded, not dead.
Analyst note
The RIVER 3 MAX PLUS is no longer sold, so there is no price to work its cost per kWh from, and this comparison doesn't quote one. On what you can actually buy today, the AC70P works out at $0.19/kWh over its rated life. If you already own the RIVER 3 MAX PLUS, the hardware comparison still holds: over its rated life the RIVER 3 MAX PLUS delivers about 2,574 kWh and the AC70P about 2,592 kWh. One thing to know reading the table: both carry the same 3,000-cycle rating, so the lifetime rows are sticker price and capacity in disguise β the wear horizon is identical and decides nothing here.
Brand trust
EcoFlow
Ecosystem
Largest in portable power β 12-15 models across DELTA Pro, DELTA 3, and RIVER 3 series, plus solar panels and smart home panels
Support
US-based phone/email/chat support (1-800-368-8604). Experiences are polarized β 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 β Reddit r/Ecoflow_community (~31K members), multiple Facebook groups, and an official community forum
App experience
Rated 4.6/5 iOS (~8,400 ratings) Β· 4.2/5 Android (~17,000 ratings)
Unique strength
EcoFlow runs the largest ecosystem in portable power.
Worth knowing
Support outcomes are polarized, and there are no parts or service out of warranty.
BLUETTI
Ecosystem
One of the broadest lineups β 15-20+ models from budget (AC2A) to flagship portable (Apex 300, 2764.8Wh). Includes specialized products: vehicle solar hubs, sodium-ion cold-weather units, and balcony storage systems.
Support
The most inconsistent support in the space. Heavily email-based with China timezone delays. Some users get smooth, efficient service; others report weeks of troubleshooting runarounds, being offered discounts on new units instead of repairs, and confusing third-party purchase claim processes. Buying direct from Bluetti's website tends to produce better support outcomes.
Community
Active and growing β Reddit r/bluetti has a dedicated community. Second-largest after EcoFlow in engagement.
App experience
Rated 4.5/5 iOS and Android β tied for best app experience in the category. V3.0 UI redesign was well-received.
Unique strength
BLUETTI is strong on capacity for the money across its range.
Worth knowing
The less consistent support of the two, mostly by email with delays from the time difference to China.
Analyst note
EcoFlow's community is larger. On this pair, availability settles the brand question first, since only BLUETTI's unit is still sold.
Growth path
RIVER 3 MAX PLUS
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit β useful if your needs may climb past 858Wh.
Accepts up to 200W of solar. Limited to a single portable panel.
Adequate ports for most setups, but heavy users may want a power strip.
Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.
AC70P
FIXED CAPACITYFixed at 864Wh, with no expansion β so size it for your needs up front rather than planning to add capacity later.
Accepts up to 500W of solar. Suitable for a 1-2 panel setup.
Adequate ports for most setups, but heavy users may want a power strip.
Realistic full solar rechargeat 70% of rated panel output β see methodology
Analyst note
The AC70P is sealed at 864Wh, so buy the size that covers you now. The RIVER 3 Max Plus already ships with EcoFlow's larger add-on battery attached.
What Owners Report
Patterns from published owner reports and long-term reviews β every claim cited to its source below.
EcoFlow RIVER 3 MAX PLUS
The Max Plus is the RIVER 3 Plus with EcoFlow's larger EB600 battery attachedA2A9. One vanlife reviewer found it filled from the wall in a little over two hoursA1 and called it a brilliant middle ground for a weekend off-gridA5. The same reviewer puts its UPS switching under 10 millisecondsA3 and notes it won't run a high-power hair dryer or a microwaveA4.
Another says its extended output mode suits resistive loads like heaters, not sensitive electronics such as desktop PCsA7. Our research found very little long-term owner commentary on this exact modelA0.
βThe RIVER 3 Max Plus (Wireless) can go from empty to full from mains in around 2.3 hours, which is very quick given its capacity.β
Sources
wandering-bird.com Β· root-nation.com Β· phonearena.com
BLUETTI AC70P
BLUETTI's own spec sheet lists 1,000W continuous, 2,000W surge and up to 500W of solar for the AC70PB4. One review reports wall charging to 80% in under an hourB2. Its LiFePO4 cells are built for thousands of cyclesB1.
Our research flagged one catch first. The AC70P takes no expansion battery and stays at 864Wh for its whole lifeB3B0.
βHolds 864Wh β about 96Wh more than the AC70 β on safe, stable LiFePO4 chemistry built for thousands of charge cycles.β
Sources
bluettipower.com Β· bestgeneratorsolar.com Β· madetoexplore.ca Β· truegear.com.au
Sources & Research Notes
Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.
Recurring owner themes
- Owners/reviewers consistently note the Max Plus is a modular upgrade (base unit + EB600 battery) rather than a distinct unit, and reference its 858Wh combined capacity β this conflicts with the 1196Wh figure given in the task brief, suggesting a possible spec discrepancy or regional/bundle variant not covered by available sources. [RIVER 3 MAX PLUS Β· 3 entries]
- Reviewers agree the extended 1200W X-Boost output is best suited to resistive/heating loads, not sensitive electronics like PCs. [RIVER 3 MAX PLUS Β· 2 entries]
- Sub-10ms UPS switchover is repeatedly highlighted as a standout, real-world-tested feature across the River 3 Plus/Max/Max Plus family. [RIVER 3 MAX PLUS Β· 2 entries]
- AC70P's real advantages are more base capacity and faster wall charging; crucially it is sealed while the cheaper AC70 is the expandable model. [AC70P Β· 3 entries]
- A1
βThe RIVER 3 Max Plus (Wireless) can go from empty to full from mains in around 2.3 hours, which is very quick given its capacity.β
wandering-bird.com β REVIEW: Ecoflow River 3 Max Plus- vanlife essential or not? Β· 2025-11 Β· [positive]
- A2
βThe RIVER 3 Max Plus (Wireless) is created by taking the RIVER 3 Plus (Wireless) and attaching the larger EB600 extra battery, giving a total capacity of 858Wh.β
wandering-bird.com β REVIEW: Ecoflow River 3 Max Plus- vanlife essential or not? Β· 2025-11 Β· [positive]
- A3
βUPS (Uninterruptible Power Supply) switching on the RIVER 3 Plus/Max models is under 10 millisecondsβ
wandering-bird.com β REVIEW: Ecoflow River 3 Max Plus- vanlife essential or not? Β· 2025-11 Β· [positive]
- A4
βIt won't run a high-power hairdryer or microwave, but that's true for most portable power stations unless you go for one of the big Delta units.β
wandering-bird.com β REVIEW: Ecoflow River 3 Max Plus- vanlife essential or not? Β· 2025-11 Β· [mixed]
- A5
βFor typical wild parking or a weekend off-grid, the Max Plus version is a brilliant middle ground.β
wandering-bird.com β REVIEW: Ecoflow River 3 Max Plus- vanlife essential or not? Β· 2025-11 Β· [positive]
- A7
βthe extended output is designed for resistive loads β things like hair dryers, heaters, or compact air conditioners. It's not meant for sensitive electronics like desktop PCs.β
root-nation.com β EcoFlow River 3 Max Review (discusses River 3 Max Plus family) Β· 2025-05 Β· [mixed]
- A9
βWith the EB300, you transform the station into the River 3 Max model, while the larger expansion battery gives you the EcoFlow River 3 Max Plus.β
phonearena.com β EcoFlow River 3 Plus Review Β· 2025-03 Β· [positive]
- B1
βHolds 864Wh β about 96Wh more than the AC70 β on safe, stable LiFePO4 chemistry built for thousands of charge cycles.β
bluettipower.com / bestgeneratorsolar.com β AC70P buyer's guide Β· 2026 Β· [positive]
- B2
βRecharges faster from the wall β supports a higher AC input and reaches 0 to 80% in roughly 0.8 hours, acting as an efficient fast charger when you're in a hurry.β
bluettipower.com / madetoexplore.ca β AC70P review Β· 2026 Β· [positive]
- B3
βThe AC70P does NOT support battery expansion β it is sealed at 864Wh. By contrast, the cheaper AC70 CAN expand to roughly 1,574Wh by adding BLUETTI's B80 expansion battery.β
truegear.com.au / bluettipower.com β AC70 vs AC70P comparison Β· 2026 Β· [mixed]
- B4
β1,000W continuous / 2,000W surge, car charging (12V/24V), and solar up to 500W β the same as the AC70.β
bluettipower.com β AC70P specifications Β· 2026 Β· [positive]
Research compiled October 25, 2026.
Who Should Buy Which
Buy the RIVER 3 MAX PLUS if youβ¦
- βYou already own a Max Plus and your loads stay under 600W.
- βYou already own one and it sits next to a bed, where its quieter rating counts.
Buy the AC70P if youβ¦
- βSomething in your plan draws more than 600W, like a coffee maker or a space heater.
- βYou charge mostly from panels and want the 500W solar input.
- β864Wh already covers your plan, since there is no adding to it later.
If neither fits
Neither covers an 8-hour blackout or a full camping weekend on one charge. Our scenario model has each covering a bit under half of the blackout. For that job, look at a unit about three times this size.
The Bottom Line
EcoFlow no longer sells the RIVER 3 Max Plus, so the AC70P is the one to buy between these two. It has the bigger inverter and more than twice the solar input on the same size battery.
The Max Plus was quieter on paper and switched faster. If you own one, it still does.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the EcoFlow RIVER 3 Max Plus still sold?
No. EcoFlow no longer sells the RIVER 3 Max Plus. The closest unit EcoFlow still sells at this size is the RIVER 2 Pro, and the DELTA 3 Classic is the step up in capacity.
Which one can I expand later?
Not the AC70P, which is sealed at 864Wh. The RIVER 3 Max Plus already ships with EcoFlow's larger EB600 battery attached, and EcoFlow no longer sells it.
Which charges faster from solar panels?
The AC70P. It accepts up to 500W of solar against 200W for the Max Plus, on nearly the same size battery. With enough panel in full sun, it can refill from empty in under half the time.
Can either of these run a space heater or hair dryer?
The AC70P has more room. It runs 1,000W continuous, and its Power Lifting mode runs a resistive heater or kettle rated up to 2,000W at reduced power. The Max Plus runs 600W continuous. One reviewer notes it won't run a high-power hair dryer or microwave, and another says its extended output mode is designed for resistive loads.
Which is quieter and switches over faster during an outage?
The RIVER 3 Max Plus, on paper. EcoFlow rates it at 30dB as a maximum under heavy load, while BLUETTI's 45dB for the AC70P is a best case. Its UPS rating is no worse than 10ms against no worse than 20ms for the AC70P.
Where to buy
EcoFlow RIVER 3 MAX PLUS
No longer sold
BLUETTI AC70PPick
$499.00
$499.00 Β· direct from BLUETTI
Last checked 28 days ago. Prices move β check before you buy.
Prices may vary by retailer and are subject to change.