Head-to-head test
EcoFlow DELTA 2 Max vs BLUETTI Elite 320
The one of these two that can expand costs $298 more, holds 1,152Wh less, and still ends up over twice as expensive per lifetime kilowatt-hour — expansion is the DELTA 2 Max's only structural card against a sealed unit that already costs less to own.
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
EcoFlow
DELTA 2 Max
4,071Power Score · Appliance Class
$949.00 list · direct from EcoFlow
BLUETTI
Elite 320
4,595Power Score · Appliance Class
$1,099.99 list · direct from BLUETTI
Spec deltas
The EcoFlow DELTA 2 Max costs $298 more than the BLUETTI Elite 320 and holds 1,152Wh less doing it. That's before either unit has run a single cycle. Once you factor in that both are rated for the same 3,000 cycles, the Elite settles in at $0.10 per lifetime kWh against the DELTA's $0.21 — a bit over twice as much for every unit of energy it will ever deliver.
The DELTA's answer is the one thing the Elite genuinely can't do: it expands. BLUETTI's Elite 320 is sealed — 3,200Wh today is 3,200Wh for the life of the unit. EcoFlow's DELTA 2 Max takes add-on batteries, so a future shortfall costs a battery, not a new station. That's a real structural advantage, and it's the whole argument for paying more upfront.
Whether that argument holds depends entirely on whether you'll use it. Priced as it stands, without an expansion battery attached, the DELTA loses on cost, loses on capacity, and loses four of six usage scenarios to the Elite. Growth room only pays for itself if you actually grow into it.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
The DELTA charges roughly twice per watt-hour of the Elite, and running both through their matched 3,000-cycle rating still leaves the DELTA at $0.21 per lifetime kWh against the Elite's $0.10 — over twice as much for a battery that also holds 1,152Wh less on day one.
DELTA 2 Max costs $1,297 for 2,048Wh ($0.63/Wh)Elite 320 costs $999 for 3,200Wh ($0.31/Wh)Elite 320's cost per lifetime kWh is $0.10 vs DELTA 2 Max's $0.21
Why it mattersBuyers with no concrete plan to actually buy an expansion battery are paying the DELTA's premium for a door they may never open.
continuous output
A 2.0x surge ratio means the DELTA's inverter is built to absorb a compressor's startup spike more comfortably than its continuous number alone suggests. UPS speed is a different problem — it's about not dropping the load at all during a grid blip — and Elite's 10ms beats DELTA's 20ms outright.
DELTA 2 Max surges to 4,800W against 2,400W continuous, a 2.0x ratioElite 320 surges to 2,700W against 1,800W continuous, a 1.5x ratioElite 320 switches to battery power in 10ms vs DELTA 2 Max's 20ms
Why it mattersWeigh the DELTA's surge ratio if you're starting one specific heavy appliance; weigh the Elite's faster switchover if you're keeping something sensitive alive through a flicker.
30dBA on paper undersells what reviewers actually measured under a heavy charge — nearly double the printed figure, at the exact moment you're standing next to it plugging things inA1. The Elite doesn't publish a number at all, which is a bigger unknown, but at least it isn't contradicting its own spec sheet.
DELTA 2 Max's fans reportedly run around 52dB under heavy load or fast charging, well above its 30dBA specA1a Quiet Charging mode trades noise for a slower refillA1Elite 320 has no disclosed noise rating at all
Why it mattersAnyone noise-sensitive should treat both ratings as approximate and plan for worse than either sheet implies.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: The $0.10 vs $0.21 cost-per-kWh gap is the single biggest number in this matchup.
cost / lifetime kWh
The Elite 320 holds 1,152Wh more than the DELTA 2 Max and still costs $298 less — the DELTA is fighting uphill before cycles even enter the picture. Run both through their matched 3,000-cycle ratings at $0.63/Wh and $0.31/Wh respectively, and the Elite lands at $0.10 per lifetime kWh, the DELTA at $0.21, a bit over twice as much.
Cost per warranty year tells the same story differently: $200 for the Elite against $259 for the DELTA, on identical five-year warranties. Same coverage window, different price for it.
What the Specs Don't Tell You
Selected because: Surge ratio, UPS speed, weight, and noise disclosure split in different directions and need unpacking.
Two of these gaps cut in the DELTA's favor. Its inverter carries a 2.0x surge-to-continuous ratio (4,800W over 2,400W) against the Elite's 1.5x (2,700W over 1,800W) — a genuine sign of a more comfortable inverter for hard-starting loads. The Elite answers with a 10ms UPS switchover to the DELTA's 20ms, twice as fast catching a grid blip before it reaches whatever's plugged in.
The other two work against the Elite. It's nearly 75 lbs against the DELTA's 50.7, and it has no published noise rating at all, where the DELTA at least lists 30dBA — even though reviewers measured closer to 52dB under heavy chargingA1.
Growth Path
Selected because: Expansion is the DELTA's only structural advantage and deserves an honest accounting.
This is the DELTA's one real structural card: it takes EcoFlow expansion batteries, so a future capacity shortfall means adding a battery instead of replacing the whole unit. The Elite is sealed — what you buy is what you keep.
Price that card honestly, though. The Elite already starts 1,152Wh ahead and $298 cheaper. The DELTA's expansion path only pays off once you actually buy an expansion battery — until then you're carrying its higher sticker price for a door that isn't open yet.
Brand Trust
Selected because: Cross-brand pair — EcoFlow's ecosystem and recall history against BLUETTI's value position and support gaps.
EcoFlow runs the larger, more active ecosystem — its community alone dwarfs BLUETTI's — and the DELTA line's X-Stream charging is genuinely the fastest in the category. That scale comes with a scar: the October 2025 DELTA Max 2000 recall for overheating risk is the kind of notice anyone buying into the DELTA family should read before checkout.
BLUETTI counters with the stronger capacity-to-price ratio in the market and an app rated equally well on iOS and Android, but its support is the least consistent of the major brands — heavily email-based with China-timezone delays. Buying either brand direct from the manufacturer's own site tends to produce smoother support than going through a third-party retailer.
Strengths & trade-offs
EcoFlow DELTA 2 Max
Strengths
- +Costs $151 less
- +Lighter by 24.3 lb
- +Higher AC output
Trade-offs
- –No major technical downsides compared to rival.
BLUETTI Elite 320
Strengths
- +Larger battery capacity
Trade-offs
- –Significantly heavier (+24.3 lbs), making it harder to move.
- –Weaker inverter (-600W) limits appliance compatibility.
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
Elite 320
A typical weekend needs about 2,100Wh. The DELTA 2 Max can't quite cover it solo, needing 121% of its tank; the Elite 320 does it at 77%, with real capacity to spare. This is the DELTA's expansion pitch made concrete — without an add-on battery, this is the trip it can't finish.
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
Elite 320
Both survive, but the Elite 320 finishes at just 60% used. That's enough reserve for a second blackout night. The DELTA 2 Max at 94% leaves little margin if the outage runs longer than expected. In storm-prone areas, that remaining capacity is insurance.
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
Both are wildly overqualified for CPAP. You're using 18% or less. Save your money and buy whichever is cheaper; the extra capacity is completely wasted on a 40W overnight load. Put the savings toward a second battery for multi-night trips.
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
Elite 320
The Elite 320 gives you a comfortable buffer at 33%. Enough to work late, join extra video calls, or charge a second device without worry. The DELTA 2 Max at 52% works but leaves less room for the unexpected. For daily remote work, that peace of mind matters.
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
Elite 320
Both handle game day, and the Elite 320 does it with more in reserve — 25% used against 38%. Tailgating is a light load, so that headroom counts for less here than the 24 lbs you'll actually carry across the parking lot.
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: Elite 320 runs 13.3h vs 8.5h.
$1,099.99 list · direct from BLUETTI
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 0–181.3hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–36.3hHigh-Draw Appliances
These reveal the real limitsscale 0–2.7h¹ 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 14, 2026
Verdict: the BLUETTI Elite 320
Take the Elite 320 unless you have a concrete, near-term plan to add an expansion battery. It's $298 cheaper, holds 1,152Wh more, wins four of the six usage scenarios outright, and costs $0.10 per lifetime kWh against the DELTA 2 Max's $0.21. The DELTA's real advantages are expandability and a stronger 2.0x surge-to-continuous ratio versus the Elite's 1.5x — both genuine, neither free. Buy the DELTA only if you're actually going to grow into it; otherwise you're paying $298 to keep a door open you may never walk through.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 14, 2026. The links below open EcoFlow's and BLUETTI's current prices.
$1,099.99 list · direct from BLUETTI
or check the DELTA 2 Max price$949.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated July 14, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): CPAP, Apartment Balcony.
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 2 Max rates 3.9/5 (33rd percentile of 25 Large-class units), and Elite 320 rates 3.9/5 (38th percentile of 25 Large-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.
Elite 320: 75 lbs Is a Commitment
At 75 lbs, this is manageable but not fun to carry. That's heavier than a large checked suitcase. Moving it from your car to a campsite requires some effort and flat terrain.
DELTA 2 Max: The One That Can Grow
This is the whole reason to consider paying more upfront. The Elite 320 is sealed — 3,200Wh today is 3,200Wh forever. The DELTA 2 Max takes EcoFlow expansion batteries, so a future shortfall costs an add-on, not a whole new unit. It's a real advantage. It's just an advantage you're paying $298 to keep open before you've used it.
DELTA 2 Max: More Surge Headroom Per Watt
4,800W surge over a 2,400W continuous rating is a 2.0x ratio, against the Elite 320's 1.5x. That extra headroom is what lets an inverter absorb a compressor's startup spike rather than trip — worth knowing if you're planning to run one specific heavy appliance rather than several light ones.
UPS Speed: line-interactive (<10ms) vs standby (<20ms)
The Elite 320 switches to battery in 10ms (line-interactive (<10ms)), while the DELTA 2 Max takes 20ms (standby (<20ms)). Safe for desktop PCs, routers, and CPAP machines. NAS drives are protected. This matters if you're using it as a home UPS for always-on equipment.
Elite 320: The Noise Number Nobody Gets
BLUETTI doesn't publish a decibel rating for the Elite 320 at all. The DELTA 2 Max at least lists 30dBA, even though testers measured closer to 52dB under heavy charging. An undisclosed number isn't automatically worse than a disclosed one that undersells reality, but it does mean you're buying on trust either way.
Full record above — the Test Desk pick is the Elite 320.
Check Elite 320 price →or check the DELTA 2 Max 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 DELTA 2 Max is cheaper to buy, but the Elite 320 is cheaper to own. At $0.11/kWh over its lifetime vs $0.15/kWh, the Elite 320's higher cycle life and capacity make each dollar go further over the years.
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/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
Fastest-charging technology (X-Stream), deepest product ecosystem, and most active innovation cadence. Supports up to 180kWh modular expansion with DELTA Pro Ultra X.
Worth knowing
EcoFlow's ecosystem is the deepest in the category — solar panels, smart home panels, and a modular path up to 180kWh via the DELTA Pro Ultra X — but the October 2025 DELTA Max 2000 recall for overheating risk is worth reading up on before buying into the family.
BLUETTI
Ecosystem
One of the broadest lineups — 15-20+ models from budget (AC2A) to flagship (Apex 300, 3072Wh). 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 — Reddit r/bluetti has a dedicated community. Second-largest after EcoFlow in engagement.
App experience
Rated 4.5/5 iOS and Android — tied for best app experience in the category. V3.0 UI redesign was well-received.
Unique strength
Among the best capacity-to-price ratios available — several Elite and Apex units are the lowest $/Wh in the catalog. Widest product diversity including industry-firsts like sodium-ion cold-weather units and dual solar+alternator vehicle hubs. Full LFP standardization across lineup (3,500-6,000+ cycles). Dual-voltage (120V/240V) in flagships.
Worth knowing
BLUETTI's lineup runs deepest on value — the widest span from budget to flagship — but support is the most inconsistent in the space, heavily email-based with China-timezone delays. Buying direct from BLUETTI's own site tends to produce better outcomes than going through a third-party retailer.
Analyst note
EcoFlow has the bigger community and the faster charging tech; BLUETTI has the better price-to-capacity ratio and a tied-best app rating. Neither brand's support is consistently excellent — budget for some friction either way.
Growth path
DELTA 2 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.
Elite 320
FIXED CAPACITYFixed at 3,200Wh — a sealed, complete system. No expansion port, but that capacity already covers heavy and multi-day loads.
Accepts up to 1,000W of solar. Enough for a serious multi-panel array.
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
Don't read the DELTA 2 Max's expandability as a straight win here: it starts at 2,048Wh, below the Elite 320's 3,200Wh, so a first expansion battery largely buys back capacity the Elite 320 already includes. It only pulls ahead if you'd grow past 3,200Wh — short of that, the Elite 320's larger fixed capacity is the simpler value.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 2 Max
Fan noise is the recurring complaint on the DELTA 2 Max: reviewers measure it around 52dB under heavy load or fast charging, well above its 30dBA spec figure, and note that Quiet Charging mode trades noise for a slower refillA1. Give it roughly six inches of clearance and the airflow behaves better, but it's the one spec you should expect to exceed what's printed.
The upside is real too. It goes 0 to 80% charge in about 50 minutes and a full charge in roughly 80A2, and after six months of actual use reviewers report no structural degradation on the LFP cells, still solid as day oneA3. Reviewers keep calling it a versatile, expandable unit worth buying with caveatsA4 — the fan noise being the caveat that shows up every time.
“Fast AC wall charging — 0 to 80% in about 50 minutes and a full charge in roughly 80 minutes.”
Sources
powerstationadvisor.com · pcworld.com · thesolarlab.com · protoolsadvisor.com · trailandkale.com
BLUETTI Elite 320
The Elite 320 was introduced at CES 2026 as a suitcase-style rolling home-backup station: 3,200Wh of LFP delivering 1,800W continuous (2,700W in Power Lifting mode, 3,600W peak) behind a 10ms UPS switchoverB1. Reviewers note it covers over 66 hours of refrigeration — close to two days of essential household power — through four AC outlets, dual USB-A, and two USB-C ports at 140W and 100WB3.
It's built for that home-backup role physically too — about 75 lbs, but on oversized shock-absorbing wheels with a retractable handle rather than something meant to be carriedB2. BLUETTI is positioning it as affordable essential backup at a $1,199.99 MSRPB4, and our listed price already beats that.
“A 3,200Wh LiFePO4 battery delivering 1,800W continuous (2,700W Power Lifting, 3,600W peak), with 10ms UPS protection — a suitcase-style rolling home-backup station introduced at CES 2026.”
Sources
prnewswire.com · rv.com · notebookcheck.net · ussolarsupplier.com · finance.yahoo.co
Sources & Research Notes
Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.
Recurring owner themes
- Solid LFP durability, fast charging, and ecosystem/expandability are the praise; loud fans under heavy load or charging are the recurring complaint. [DELTA 2 Max · 3 entries]
- Large 3,200Wh LFP capacity, wheeled mobility, 10ms UPS, and affordable home-backup positioning are the standout points. [Elite 320 · 3 entries]
- A1
“Fan noise is a significant issue — cooling fans can get loud, around 52 dB during heavy loads or charging; a Quiet Charging mode reduces noise but extends charge time, and giving it 6 inches of clearance helps airflow.”
powerstationadvisor.com / pcworld.com — DELTA 2 Max review · 2025-2026 · [negative]
- A2
“Fast AC wall charging — 0 to 80% in about 50 minutes and a full charge in roughly 80 minutes.”
thesolarlab.com / protoolsadvisor.com — DELTA 2 Max review · 2025-2026 · [positive]
- A3
“LiFePO4 chemistry rated for 3,000+ cycles to 80% with superior thermal stability; after 6 months of real use there was no structural degradation and it felt as solid as day one.”
powerstationadvisor.com / trailandkale.com — DELTA 2 Max review · 2025-2026 · [positive]
- A4
“Reviewers say it's still worth buying but with caveats — a versatile unit with expandability and ecosystem compatibility.”
thesolarlab.com / powerstationadvisor.com — DELTA 2 Max review · 2025-2026 · [mixed]
- B1
“A 3,200Wh LiFePO4 battery delivering 1,800W continuous (2,700W Power Lifting, 3,600W peak), with 10ms UPS protection — a suitcase-style rolling home-backup station introduced at CES 2026.”
prnewswire.com / rv.com — Elite 320 review · 2026 · [positive]
- B2
“Weighs about 75 lbs with oversized shock-absorbing wheels and a retractable telescoping handle for easy transport around the home.”
rv.com / notebookcheck.net — Elite 320 review · 2026 · [positive]
- B3
“The big 3,200Wh LFP battery lasts over a decade and provides over 66 hours of refrigeration — up to two days of essential household power — via four AC outlets, dual USB-A, and two USB-C (140W and 100W).”
rv.com / ussolarsupplier.com — Elite 320 review · 2026 · [positive]
- B4
“Positioned as affordable, essential home backup at a $1,199.99 MSRP.”
prnewswire.com / finance.yahoo.com — Elite 320 launch · 2026 · [positive]
Research compiled July 14, 2026.
Who Should Buy Which
Buy the DELTA 2 Max if you…
- →Buyers who know they'll add an EcoFlow expansion battery within a year or two — growth room is the DELTA's only real edge here.
- →Anyone who wants the fastest AC recharge in this pair, 0 to 80% in about 50 minutesA2, for quick turnarounds between uses.
Buy the Elite 320 if you…
- →Buyers who want the most capacity and the lowest lifetime cost and are fine leaving the unit in place rather than carrying it.
- →Home-backup and blackout use, where the Elite's bigger tank and faster 10ms UPS switchover both matter more than portability.
If neither fits
If you need genuine daily van-life power (about 4,685Wh), both fall well short — look at a larger single unit or a purpose-built expandable system sized for full daily cycling.
The Bottom Line
Take the Elite 320 unless you have a specific, near-term plan to expand: it's $298 cheaper, holds 1,152Wh more, and costs $0.10 per lifetime kWh against the DELTA 2 Max's $0.21.
The DELTA 2 Max's expansion path and stronger surge ratio are real advantages, but they're a bet on future needs — pay for that bet only if you're actually going to place it.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the EcoFlow DELTA 2 Max's expandability worth the higher price?
Only if you actually plan to buy an expansion battery. On its own, the DELTA costs $298 more than the Elite 320, holds 1,152Wh less, and runs $0.21 per lifetime kWh against the Elite's $0.10 — the expansion path is real, but it isn't free to keep open.
How loud is the EcoFlow DELTA 2 Max in real use?
Reviewers measure fan noise around 52dB under heavy load or fast charging, notably above its 30dBA spec rating. Quiet Charging mode trades noise for a slower refill, and about six inches of clearance helps airflow.
Which unit is cheaper to own over its lifetime?
The BLUETTI Elite 320. It costs $0.10 per lifetime kWh against the DELTA 2 Max's $0.21, roughly twice as much per unit of energy, despite the DELTA's ability to expand.
Does the Elite 320 have a published noise rating?
No, its spec sheet leaves noise undisclosed. The DELTA 2 Max at least lists 30dBA, even though real-world testing found it runs louder under load.
Which one reacts faster during a power outage?
The Elite 320's 10ms UPS switchover beats the DELTA 2 Max's 20ms — twice as fast catching a grid interruption, which matters for anything sensitive plugged in the moment power drops.
Where to buy
EcoFlow DELTA 2 Max
$949.00
$949.00 list · direct from EcoFlow
BLUETTI Elite 320Pick
$1,099.99
$1,099.99 list · direct from BLUETTI
Prices may vary by retailer and are subject to change.