Head-to-head test
EcoFlow DELTA 3 Max vs EcoFlow RIVER 2
The RIVER 2 is the power station you carry; the DELTA 3 Max is the one you set down once and let outlast the outage — and in six tested loads, the RIVER 2 never once carried its own weight.
Written by Ian SchneiderUpdated
Solar & Off-Grid Tester, Station Arena Test Desk
EcoFlow
DELTA 3 Max
4,337Power Score · Appliance Class
$849.00 list · direct from EcoFlow
EcoFlow
RIVER 2
1,585Power Score · Device Hub
$189.00 list · direct from EcoFlow
Spec deltas
The DELTA 3 Max and RIVER 2 share a brand, a battery chemistry, and almost nothing else. One is a 50.7-pound box built to sit next to a breaker panel and answer a real outage; the other is a 7.8-pound brick built to live in a backpack pocket. Comparing them like rival contenders for the same job is the wrong frame — the right question is which job you actually have.
Where their jobs do overlap, the DELTA 3 Max wins without much argument. It cleared four of the six loads we tested outright — an 8-hour blackout, a CPAP overnight, a full remote workday, a tailgate party — and the RIVER 2 cleared none of them alone, running out before an overnight CPAP load even finished. It also costs less to actually run: $0.10 per lifetime kWh against $0.25, despite its $849 price tag against $189.
None of that makes the RIVER 2 pointless. It's $660 cheaper and 43 pounds lighter, which is the entire case for it: a grab-and-go charger for phones and laptops, not a household's backup plan. The verdict below leans hard toward the DELTA 3 Max, but only because most people cross-shopping these two are actually shopping for what the DELTA 3 Max does.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
solar input
The RIVER 2's small size buys you a light carry, not a faster refill — for solar reliance specifically, size isn't the lever that saves you time.
DELTA 3 Max: 2,048Wh capacity, 1,000W max solar inputRIVER 2: 256Wh capacity, 110W max solar input
Why it mattersSomeone buying the RIVER 2 purely to recharge faster between uses should know it doesn't have you covered; buy it for weight and price, not perceived recharge speed.
continuous output
That's why the RIVER 2 isn't a smaller version of the DELTA 3 Max you can just make do with. Its 600W surge ceiling is a real wall, not a rounding error, and a fridge or space heater that spikes past it will trip the unit no matter how much charge is left in the tank.
DELTA 3 Max: 2,400W continuous / 4,800W surgeRIVER 2: 300W continuous / 600W surge
Why it mattersIf a compressor or heating load is anywhere on the list, the RIVER 2 is the wrong category of device for the job, not just the smaller one — the DELTA 3 Max is the one that can actually start it.
rated cycles
A 5-year promise on a battery that's still going after 11 years of daily cycling is a very different guarantee than the same 5 years on one projected to run dry around year 8. The RIVER 2's warranty quietly covers a much bigger share of its useful life, which sounds generous until you realize that's because there's less life to cover.
Both units carry a 5-year warrantyDELTA 3 Max: 4,000 cycles; RIVER 2: 3,000 cyclesDaily-use lifespan works out to about 11 years for the DELTA 3 Max versus about 8.2 years for the RIVER 2
Why it mattersDon't read matching 5-year warranties as parity. Check what's actually backed by those five years, not just how long they run.
cost / lifetime kWh
Sticker price and cost of ownership point in opposite directions here: the cheaper unit to buy is the pricier one to actually run, because it packs an eighth of the energy behind similar electronics and wears out a thousand cycles sooner.
DELTA 3 Max: $849, 2,048Wh, 4,000 cycles → $0.10 per lifetime kWhRIVER 2: $189, 256Wh, 3,000 cycles → $0.25 per lifetime kWh
Why it mattersComparing these on sticker price alone answers the wrong question — the $660 gap buys 8x the capacity at under half the running cost per kWh, and only fails to pencil out if your real draw never tops a couple hundred watt-hours.
The specific dimensions that decide these two units — everything else is a tie.
Portability & Form Factor
Selected because: The core decision axis for this pair — 50.7 lb vs 7.8 lb dwarfs every other spec gap and drives who buys which.
weight
50.7 pounds is a two-hands, bent-knees lift — the kind you carry once, set down by the breaker panel or in the back of a van, and don't move again until you have to. 7.8 pounds is a one-hand grab you toss in a tote bag without thinking about it. That's the entire relationship each unit has with its owner, decided before either one gets plugged in.
The RIVER 2 wins portability outright, and it's a real win — nothing about the DELTA 3 Max's size makes it something you'd choose to carry. But it wins that fight against a battery an eighth the size. Every pound saved carrying the RIVER 2 is capacity you don't have when you get where you're going.
Your Life, Your Pick
Selected because: RIVER 2 fails all six tested loads alone (p2CanHandle=false across the board) — clearest real-world evidence of the capacity gap.
Run six real loads and the RIVER 2 doesn't clear a single one by itself — not the tailgate party, which needs exactly the RIVER 2's entire usable capacity with nothing left over, and not an overnight CPAP, which needs about half again more than the whole tank holds. The DELTA 3 Max clears four of the six outright and only misses the two that were sized too big for both units to handle alone.
That's the practical version of the capacity gap: not a bigger number on a spec sheet, but the difference between a unit that answers a blackout and one that needs the blackout to stay very short and very small.
Lifetime Value
Selected because: cheaperToOwn=p1 by 2.5x per kWh despite the $660 higher sticker price — the value case for paying more upfront.
cost / lifetime kWh
The RIVER 2 is $660 cheaper to buy. It is not cheaper to run: $0.25 per lifetime kWh against the DELTA 3 Max's $0.10, a gap of two and a half times, because the bigger battery spreads its price over eight times the energy and a thousand more charge cycles (4,000 against 3,000).
Both carry the same 5-year warranty on paper. What that warranty actually backs is different: 2,048Wh and 4,000 cycles on one side, 256Wh and 3,000 on the other, which is most of why the per-kWh math favors the DELTA 3 Max even after you account for its much higher price tag.
Growth Path
Selected because: Only the DELTA 3 Max has an expansion path; RIVER 2 is sealed for life — matters for anyone whose needs might grow.
solar input
The DELTA 3 Max has somewhere to go: EcoFlow's expansion batteries let you add capacity past 2,048Wh without replacing the base unit. The RIVER 2 doesn't: 256Wh is the ceiling the day you buy it, and the ceiling for as long as you own it.
That only matters if your needs are actually headed upward. Someone certain that 256Wh covers them forever loses nothing to the RIVER 2 being sealed. Someone who suspects they'll eventually want partial-home backup is paying for that uncertainty either way — better to pay for it as an expansion battery later than as a second RIVER 2 now.
What the Specs Don't Tell You
Selected because: Five gotchas fire (noise, expansion, ups, warranty, cycleLife) — richest source of granular, spec-true differentiators.
rated cycles
Five gaps separate these two beyond capacity, and they mostly point the same direction. The DELTA 3 Max switches to battery power in under 10 milliseconds against the RIVER 2's 30, which is the difference between a UPS a sensitive router or PC won't notice and one that might still reboot. It also runs quieter under load: 30dB against 50.
The one place the RIVER 2 doesn't concede anything is warranty length: both are 5 years, flat. What's behind that coverage is the real story — more cycles, more capacity, and a lower cost per kWh on the DELTA 3 Max's side, covered by the identical five years. Matching warranty terms on two very different batteries is not the same as matching value.
Strengths & trade-offs
EcoFlow DELTA 3 Max
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$660) than the RIVER 2.
- –Significantly heavier (+42.9 lbs), making it harder to move.
EcoFlow RIVER 2
Strengths
- +Costs $660 less
- +Lighter by 42.9 lb
Trade-offs
- –Weaker inverter (-2,100W) limits appliance compatibility.
- –Sealed capacity — the DELTA 3 Max can add batteries to grow past 256Wh; this one can't.
- –Shorter-lived battery — rated for 3,000 charge cycles vs the DELTA 3 Max's 4,000, so it wears out sooner.
Will It Power Your Gear?
Scenario math and per-appliance runtimes, modeled from the spec record.
Scenario verdicts
We ran the math on six real-world scenarios. Here's which unit survives your actual life.
SCN-01 · 2 nights · needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
Neither unit
Neither unit covers this load solo. The DELTA 3 Max would need to draw past its own usable capacity, and the RIVER 2 would need nearly ten times its entire tank. This is a job for the DELTA 3 Max plus solar input, or a bigger unit outright, not either box alone.
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
DELTA 3 Max
The DELTA 3 Max covers this on its own, using nearly all of its usable capacity with a little room to spare. The RIVER 2 isn't close: this load needs more than seven times what it holds.
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
DELTA 3 Max
An easy night for the DELTA 3 Max, using well under a fifth of its tank. The RIVER 2 can't finish the night; the load needs more than its entire usable capacity.
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
DELTA 3 Max
The DELTA 3 Max gets through a full workday on about half its capacity, with plenty left in reserve. The RIVER 2 would need more than four times what it holds.
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
DELTA 3 Max
The DELTA 3 Max handles this comfortably, using a little over a third of its tank. The RIVER 2 is tapped out exactly at its limit, every watt-hour it has, with nothing held in reserve.
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 is built for this. A full day of van-life draw needs well over twice what the DELTA 3 Max holds, and more than twenty times the RIVER 2's tank. This is a case for a fixed house-battery setup or serious daily solar input, not a single portable unit.
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: DELTA 3 Max runs 8.5h vs 1.1h.
$849 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 0–116.1hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–23.2hHigh-Draw Appliances
These reveal the real limitsscale 0–1.7h¹ 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 DELTA 3 Max, on Power Score margin
On every spec that overlaps, the DELTA 3 Max wins: 8x the capacity, 8x the continuous output, a longer real-world cycle life, and less than half the cost per lifetime kWh ($0.10 versus $0.25). It cleared four of our six test scenarios outright; the RIVER 2 cleared none of them alone. But comparing them as if they compete for the same job misses the point — the RIVER 2 is $660 cheaper and about 43 pounds lighter, and for someone who only ever needs to keep small electronics alive, that's still the right box. Buy the DELTA 3 Max if you need it to run something real. Buy the RIVER 2 if you need to carry it.
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.
$849.00 list · direct from EcoFlow
or check the RIVER 2 price$189.00 list
Written by Ian Schneider, Solar & Off-Grid 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, RV Living, Home Backup, Solar Generator, Food Truck, Camping.
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, DELTA 3 Max rates 4.4/5 (63rd percentile of 25 Large-class units), and RIVER 2 rates 4.1/5 (48th 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.
RIVER 2 Runs Louder
30dB for the DELTA 3 Max against 50dB for the RIVER 2 under load. The RIVER 2's fan is the one you'll actually hear across a room.
Only One Side Can Grow
The DELTA 3 Max accepts EcoFlow expansion batteries past its 2,048Wh base. The RIVER 2 is sealed at 256Wh for good, the tradeoff for the lighter, cheaper unit.
Switchover Speed Gap
10 milliseconds for the DELTA 3 Max, 30 for the RIVER 2. Both count as a UPS, but line-interactive speed keeps a PC or router from noticing the outage at all; basic standby speed sometimes doesn't.
Same Term, Different Backing
Both units carry a 5-year warranty. The DELTA 3 Max's covers 2,048Wh and 4,000 cycles; the RIVER 2's covers 256Wh and 3,000 cycles. Identical coverage length, very different coverage.
Cycle Life in Real Years
4,000 cycles against 3,000 works out to roughly 11 years of daily use for the DELTA 3 Max versus about 8.2 for the RIVER 2, and both numbers stretch a lot further if you're only cycling on weekends.
Full record above — the Test Desk pick is the DELTA 3 Max.
Check DELTA 3 Max price →or check the RIVER 2 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 is cheaper to buy, but the DELTA 3 Max is cheaper to own. At $0.1/kWh over its lifetime vs $0.25/kWh, the DELTA 3 Max's higher cycle life and capacity make each dollar go further over the years.
Delivers each lifetime kWh for $0.15 less — check the DELTA 3 Max price →
Growth path
DELTA 3 Max
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 2,048Wh.
Accepts up to 1,000W of solar. Enough for a serious multi-panel array.
Generous port selection supports complex multi-device setups.
Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.
RIVER 2
FIXED CAPACITYFixed at 256Wh, 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
The RIVER 2 is sealed at 256Wh, which is fine if that covers you. The DELTA 3 Max starts at 2,048Wh and can grow beyond it with EcoFlow expansion batteries — real headroom the RIVER 2 doesn't have if your needs climb toward partial-home backup.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3 Max
Reviewers consistently point to how quiet the DELTA 3 Max stays under normal use, close to silent at conversational distance, with an app-based quiet mode and a charge-speed limiter for anyone who wants the fan even further backA1. That same app is one of the more common reasons people cite for moving into the EcoFlow ecosystem in the first placeA2.
Hands-on testing found the battery holding its capacity steady over extended use, and the unit shrugged off rough handling — truck-bed transport, a hot garage, near-freezing storage — without a reported issueA3. Across independent reviews it lands near the top of its 2kWh class, with fast recharging and LFP longevity singled out as the strongest part of the dealA4.
“Whisper-quiet under moderate load — essentially silent at conversational distance; the app adds a low-power quiet mode and a custom charge-speed limit if fan noise bothers you. Fans rise under heavy load but stay quieter than most competitors in the 2kWh class.”
Sources
backuppowerhub.com · thesolarlab.com · androidguys.com
EcoFlow RIVER 2
The RIVER 2 draws a more mixed reaction. Owners describe it as noticeably loud once the fan spins up under loadB1, and reviewers peg it as a fine choice if you're strictly indoors and counting every dollar, without expecting extras like waterproofing or a whisper-quiet fanB3.
It runs the same 300W output and LiFePO4 chemistry that's made it one of EcoFlow's more popular small-format unitsB2 — a fine résumé for a budget charger. It just isn't the résumé of a unit meant to run a room.
“Shares the same core platform as the RIVER 3 — 300W output, LiFePO4 chemistry, and roughly 60-minute fast charging — and remains a popular, proven budget small-format unit.”
Sources
backuppowerhub.com · ecoflow.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
- Reviewers consistently praise practical quietness (with app-based quiet/charge-limit modes) and the EcoFlow app/ecosystem as differentiators. [DELTA 3 Max · 2 entries]
- The RIVER 2 is the older, cheaper unit on the same core platform — reasonable for budget indoor use but louder and less refined than the RIVER 3. [RIVER 2 · 2 entries]
- A1
“Whisper-quiet under moderate load — essentially silent at conversational distance; the app adds a low-power quiet mode and a custom charge-speed limit if fan noise bothers you. Fans rise under heavy load but stay quieter than most competitors in the 2kWh class.”
backuppowerhub.com — EcoFlow DELTA 3 Max Review; thesolarlab.com — DELTA 3 Max Review · 2026 · [positive]
- A2
“The EcoFlow app is one of the main reasons people migrate to the ecosystem: deep control including a custom charge-speed limit and quiet mode, well beyond the on-device interface.”
androidguys.com / thesolarlab.com — EcoFlow DELTA 3 Max line · 2026 · [positive]
- A3
“Capacity stayed consistent between 1-month and 3-month tests (within measurement error). The unit survived truck-bed transport, storage in a ~105°F garage, and operation near freezing (~34°F) without issue.”
backuppowerhub.com — EcoFlow DELTA 3 Max Review (hands-on) · 2026 · [positive]
- A4
“Rated 8.5/10 overall — strong across nearly every metric in the 2kWh class, with fast recharge and LFP longevity called one of the best value propositions in the segment.”
backuppowerhub.com — EcoFlow DELTA 3 Max Review · 2026 · [positive]
- B1
“The RIVER 2's spec data doesn't include a specific dB rating, and owner reports suggest it's noticeably louder under load than the newer RIVER 3.”
backuppowerhub.com — EcoFlow RIVER 2 vs RIVER 3 · 2026 · [negative]
- B2
“Shares the same core platform as the RIVER 3 — 300W output, LiFePO4 chemistry, and roughly 60-minute fast charging — and remains a popular, proven budget small-format unit.”
ecoflow.com / versus.com — RIVER 2 vs RIVER 3 · 2026 · [positive]
- B3
“For strictly indoor use where every dollar counts, the RIVER 2 is still a reasonable choice — but it lacks the RIVER 3's refinements like waterproofing, faster UPS, and quieter operation.”
backuppowerhub.com — RIVER 2 vs RIVER 3 recommendation · 2026 · [mixed]
Research compiled July 28, 2026.
Who Should Buy Which
Buy the DELTA 3 Max if you…
- →Buy the DELTA 3 Max if an outage is the scenario you're actually planning for. It cleared four of the six loads we tested on its own — an 8-hour blackout, a CPAP overnight, a full remote workday, a tailgate party — and it got closer than the RIVER 2 ever could on the two it didn't clear alone.
- →It's also the pick if you think you'll want more capacity later. The expansion path is real EcoFlow hardware, not a hypothetical — the RIVER 2 has no such option at any price.
Buy the RIVER 2 if you…
- →Buy the RIVER 2 if the job is keeping phones, a tablet, and a laptop alive — nothing with a compressor or a heating element — and the unit has to disappear into a backpack when you're done with it. At 7.8 pounds it's the one you'll actually grab on the way out the door.
- →It's also the rational choice if $849 is simply outside the budget and $189 covers everything you need it to power. A smaller battery you can afford and carry beats a bigger one you can't.
If neither fits
Skip both if you're trying to run a van or cabin's full daily draw. Our Van Life Daily test load needs more energy than even the DELTA 3 Max holds in a single charge, let alone the RIVER 2. That's a job for a multi-battery or fixed solar setup, not a single portable unit from either end of this pair.
The Bottom Line
The DELTA 3 Max wins everywhere the two units actually compete: cheaper per lifetime kWh ($0.10 against $0.25), the only one of the two that cleared four of six test loads outright, and the only one with anywhere to grow. The RIVER 2 never wins a scenario on this page, but it was never built to — it was built to be the 7.8-pound charger you don't think twice about packing.
If an outage, a CPAP, or a full workday is the actual scenario, buy the DELTA 3 Max and stop comparing. If the job fits in a backpack, the RIVER 2 was never really in this fight. Buy it anyway.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Can the RIVER 2 do anything the DELTA 3 Max can't?
Not in output or capacity — it loses on every spec that governs running something. What it wins is carry weight and price: 7.8 pounds against 50.7, and $189 against $849. If the job is small and needs to travel light, that's a real advantage, not a consolation prize.
Is the DELTA 3 Max worth the extra money over the RIVER 2?
If you'll ever need more than a couple hundred watt-hours at once, yes. It holds 2,048Wh against the RIVER 2's 256Wh, and works out to $0.10 per lifetime kWh against $0.25, despite the RIVER 2 costing $660 less to buy. If your actual draw genuinely never exceeds what a phone and a laptop need, you're paying for headroom you won't use.
Can the RIVER 2 run a CPAP machine all night?
Not by our numbers. An overnight CPAP load needs about 320Wh, which comes to 147% of the RIVER 2's usable capacity, so it runs dry before morning. The DELTA 3 Max handles the same night on about 18% of its tank.
Which is quieter, the DELTA 3 Max or the RIVER 2?
The DELTA 3 Max, by spec: 30dB against the RIVER 2's 50dB under load. Reviewers describe the DELTA as close to silent in normal use, while RIVER 2 owners report it gets noticeably loud once the fan spins up.
Can I add battery capacity to the RIVER 2 later?
No, it's sealed at 256Wh for the life of the unit. The DELTA 3 Max is the one built to grow: it accepts EcoFlow's expansion batteries, so you can add capacity past its 2,048Wh base without buying a second stand-alone unit.
Where to buy
EcoFlow DELTA 3 MaxPick
$849.00
$849.00 list · direct from EcoFlow
EcoFlow RIVER 2
$189.00
$189.00 list · direct from EcoFlow
Prices may vary by retailer and are subject to change.