Head-to-head test
EcoFlow DELTA 3 vs Anker SOLIX C1000 Gen 2
The DELTA 3 is $130 cheaper than the C1000 Gen 2 with the same capacity and a higher surge — the Anker earns its premium only if you want the longer-lived battery and the extra output.
Written by Ian SchneiderUpdated
Solar & Off-Grid Tester, Station Arena Test Desk
EcoFlow
DELTA 3
3,196Power Score · Appliance Class
$549.00 list · direct from EcoFlow
Anker
SOLIX C1000 Gen 2
3,357Power Score · Appliance Class
$549.99 list · direct from Anker
Spec deltas
The cheaper unit here holds just as much energy. The EcoFlow DELTA 3 is $519 to the Anker SOLIX C1000 Gen 2's $649 — a $130 gap — yet both pack the same 1,024Wh, the same expandable design, and the same sub-10ms UPS switchover.
The DELTA 3 even leads in a couple of places: it surges to 3,600W against the Anker's 3,000, and its rated 30dB edges the C1000 Gen 2's 35. What it gives up is longevity and a little muscle — a 3,000-cycle battery to the Anker's 4,000, and 1,800W of output to 2,000. Its field data is still preliminary, as the standard DELTA 3 is newer than its widely-tested Plus and Max siblingsA1.
The C1000 Gen 2's case is that it's the more refined unit: 200W more output, 100W more solar (600W vs 500), a 140W USB-C port, a lighter 24.9-lb body, and a fast 49-minute rechargeB1, all on a battery rated a third longer. Reviewers call it the mid-size unit to beat in 2026B4. The question is whether that refinement is worth $130 over a cheaper unit that already covers the basics.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
The C1000 Gen 2's longer 4,000-cycle battery makes its cost-to-own a penny lower per kWh, but the DELTA 3 is $130 cheaper to buy with identical capacity — so the Anker's longevity edge barely dents the DELTA 3's upfront saving for anyone who won't run out all 4,000 cycles.
the DELTA 3 costs $519 vs the C1000 Gen 2's $649both hold 1,024Wh and are expandablethe DELTA 3's cost-to-own is $0.17/kWh vs the Anker's $0.16
Why it mattersValue-focused buyers who won't cycle the unit daily for a decade keep the $130 with the DELTA 3.
continuous output
The DELTA 3's 3,600W surge — double its 1,800W rating — gives motor-driven appliances more room to start than the Anker's 3,000W, and its lower rated noise means the value unit isn't the louder one, an unusual combination for the price leader.
the DELTA 3 surges to 3,600W vs the C1000 Gen 2's 3,000Wboth sustain similar output (1,800W vs 2,000W)the DELTA 3 is rated 30dB vs the Anker's 35dB
Why it mattersFor startup-heavy loads or quiet operation, the DELTA 3 isn't a compromise pick — it leads.
rated cycles
The C1000 Gen 2 stacks a third more cycle life onto 200W more output, 100W more solar, and a 49-minute rechargeB1 — a coherent set of upgrades that matter most to a heavy daily user who'll actually reach the extra cycles and lean on the faster refill.
the C1000 Gen 2 is rated 4,000 cycles vs the DELTA 3's 3,000the C1000 Gen 2 outputs 2,000W and takes 600W of solar vs 1,800W and 500Wthe C1000 Gen 2 recharges in about 49 minutesB1
Why it mattersDaily, high-use owners who value longevity and speed are the ones who should pay the Anker's $130.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: A $130 price gap against near-identical cost-to-own is the core decision.
cost / lifetime kWh
The $130 is the whole story, and it holds up under scrutiny. Both units carry 1,024Wh, so the DELTA 3 isn't buying you less energy — just fewer cycles (3,000 vs 4,000). Even so, its cost-to-own lands at $0.17 per lifetime kWh to the Anker's $0.16, a rounding-error gap, because the lower price offsets the shorter cycle life almost exactly.
That means the C1000 Gen 2's longevity advantage is real on paper but thin in practice for most buyers, who won't exhaust 3,000 cycles, let alone 4,000. If you're a daily heavy user, the Anker's extra cycles eventually pay off. If you're not, the DELTA 3 banks the $130 with no meaningful penalty.
What the Specs Don't Tell You
Selected because: Surge, output, solar, and charging speed are where the two diverge.
rated cycles
The spec split doesn't run the way the prices suggest. The cheaper DELTA 3 surges higher (3,600W vs 3,000) and is rated quieter (30dB vs 35), so on startup power and noise, the value unit leads. The pricier C1000 Gen 2 answers with more sustained output (2,000W vs 1,800), more solar (600W vs 500), a 140W USB-C port, and a 49-minute rechargeB1.
So it's not a clean better-versus-worse. The DELTA 3 wins the specs a buyer notices at startup and at rest; the C1000 Gen 2 wins the ones a power user leans on under sustained load and at the wall. Neither list is decisively longer — which is why the $130 carries so much weight.
Growth Path
Selected because: Both expand identically — a shared strength that neutralizes a common tiebreaker.
solar input
Both units expand, so the growth path isn't a differentiator here — each accepts an add-on battery to push past its 1,024Wh base. Whichever you buy, you're not locked in at the starting capacity.
That neutralizes a factor that often breaks these ties, and pushes the decision back onto price, longevity, and the small spec splits. Expandability is a reason to like both, not to prefer one.
Brand Trust
Selected because: EcoFlow's app edge versus Anker's refinement and the DELTA 3's thinner track record.
EcoFlow brings the stronger app (4.6/5 on iOS) and the deepest ecosystem in portable power, and the DELTA 3's low-load operation is genuinely quiet in early testingA1. The caveat is track record: the standard DELTA 3 is newer and less tested than its Plus and Max siblings, so its field data is still preliminaryA1.
Anker counters with a nearly-as-good app (4.5/5) and a unit reviewers already crown the mid-size one to beatB4, though its SOLIX support has slipped from its once-excellent standard. Both are trustworthy on hardware — the DELTA 3 is the newer bet, the C1000 Gen 2 the more proven refinement.
Strengths & trade-offs
EcoFlow DELTA 3
Strengths
- +Costs $1 less
Trade-offs
- –Shorter-lived battery — rated for 3,000 charge cycles vs the SOLIX C1000 Gen 2's 4,000, so it wears out sooner.
Anker SOLIX C1000 Gen 2
Strengths
- +Lighter by 2.1 lb
- +Higher AC output
- +Faster solar charging
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –No major technical downsides compared to rival.
Will It Power Your Gear?
Scenario math and per-appliance runtimes, modeled from the spec record.
Scenario verdicts
We ran the math on six real-world scenarios. Here's which unit survives your actual life.
SCN-01 · 2 nights · needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
Neither unit
Neither unit can fully handle this scenario (needs 2,100Wh). You'd need a higher-capacity station or to cut back on usage.
Battery budget usedlower = more headroom
LOAD Phone Charger 15W×6h · LED Lights 40W×8h · Box Fan 75W×14h · CPAP Machine 40W×16h
SCN-02 · 8 hours · needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
Neither unit
Neither unit covers a fridge-plus-lights blackout for a full eight hours alone — both sit at 1,024Wh, short of the load. The good news is they solve it identically: both expand with an add-on battery, and both recharge fast, though the C1000 Gen 2's 600W solar and 49-minute wall charge refill a touch quicker mid-outage. For blackout planning, they're near-equals; the decision stays about price and longevity.
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 run a CPAP's ~320Wh night three times over, so capacity is a non-issue. They're also both quiet at a CPAP's low draw — fans only ramp under heavy load or fast charging. The DELTA 3's rated 30dB gives it a slight paper edge for a nightstand, but this is effectively a tie; let price or the Anker's other upgrades decide, not this scenario.
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 laptop-monitor-router day lands near 910Wh, right at the usable edge of both 1,024Wh units — a tie on runtime, since they carry identical capacity. The tiebreak is small: the C1000 Gen 2's 140W USB-C port fast-charges the laptop directly, while the DELTA 3's quieter low-load behavior makes it the calmer desk companion. Either finishes the day; neither does it with much headroom.
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
Either unit
Both handle game day easily. Since capacity isn't the deciding factor, consider weight: the lighter unit is easier to load into a truck bed. Also check if either has Bluetooth speaker-level noise. Fan sound matters in social settings.
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 4.2h. 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 0–58hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–11.6hHigh-Draw Appliances
These reveal the real limitsscale 0–0.9h¹ 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 EcoFlow DELTA 3
The EcoFlow DELTA 3 is the value pick: at $519 it undercuts the $649 Anker SOLIX C1000 Gen 2 by $130, holds the same 1,024Wh, surges higher (3,600W vs 3,000), runs a hair quieter, and shares the same expandable design and 10ms UPS. Its cost-to-own ($0.17 per lifetime kWh) sits within a penny of the Anker's ($0.16), so the $130 you save upfront isn't clawed back over the unit's life. The C1000 Gen 2 answers with a longer-lived battery (4,000 cycles vs 3,000), 200W more output, 100W more solar, a lighter body, a 140W USB-C port, and faster 49-minute charging. Those are real upgrades — but for most buyers, the DELTA 3 covers the same fundamentals for less.
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 Anker's current prices.
$549.00 list · direct from EcoFlow
or check the SOLIX C1000 Gen 2 price$549.99 list
Written by Ian Schneider, Solar & Off-Grid Tester · Station Arena Test Desk · Updated July 13, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
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 rates 4.3/5 (61st percentile of 24 Everyday-class units), and SOLIX C1000 Gen 2 rates 4.9/5 (96th percentile of 24 Everyday-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.
3,600W surge versus 3,000W — the cheaper unit hits harder
Surge is the split-second spike a motor demands at startup, and here the value pick leads: the DELTA 3 peaks at 3,600W, double its 1,800W rating, while the C1000 Gen 2 tops out at 3,000W on a 2,000W rating. For a fridge, pump, or power tool, the DELTA 3 has more startup headroom despite costing $130 less. The Anker's edge is sustained output, not surge — match the spec to whether your tough loads spike or pull steadily.
4,000 cycles versus 3,000 — the Anker's honest advantage
The C1000 Gen 2's battery is rated for 4,000 charge cycles to the DELTA 3's 3,000 — a third more full charges before either fades. It's the clearest reason to pay the Anker's premium, and it's why its cost-to-own edges lower despite the higher price. The catch: most buyers won't cycle a 1kWh unit 3,000 times, let alone 4,000, so this longevity gap matters most to daily, heavy users — for everyone else, the DELTA 3's lower price wins.
Full record above — the Test Desk pick is the DELTA 3.
Check DELTA 3 price →or check the SOLIX C1000 Gen 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 DELTA 3 is cheaper to buy, but the SOLIX C1000 Gen 2 is cheaper to own. At $0.13/kWh over its lifetime vs $0.18/kWh, the SOLIX C1000 Gen 2'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
The Oct 2025 DELTA Max 2000 recall (overheating/fire risk, 6 incidents) is worth noting. Also tested subscription paywalls for advanced app features in early 2025 before community backlash paused the plan. No parts or service offered out of warranty.
Anker
Ecosystem
7-8 SOLIX portable power stations across C-series (compact) and F-series (flagship), plus the X1 home energy system
Support
US-based support. Historically known for incredible no-hassle replacements, but recent reports describe AI-driven support agents giving generic responses and complex return logistics for heavy units (hazmat shipping). The Anker brand reputation is still strong, but SOLIX-specific support quality is trending down.
Community
Moderate — active Reddit (r/Anker, r/AnkerSOLIXCommunity) and growing. Benefits from Anker's massive consumer electronics brand awareness.
App experience
Rated 4.5/5 iOS (~1,100 ratings) · 4.3/5 Android
Unique strength
Parent brand trust from Anker's consumer electronics dominance. InfiniPower technology for long cycle life. Strong $/Wh value in the mid-size and larger units — the S2000, F2600 and C1000 are among the better buys per watt-hour in the catalog.
Worth knowing
Support quality appears to be declining from its historically excellent level. Firmware updates have removed features without warning. Expansion ecosystem is smaller than EcoFlow's.
Analyst note
Both brands sit near the top of the category, so this is a spec-and-price decision, not a trust one. EcoFlow brings the deepest ecosystem and the better-rated app (4.6/5), plus aggressive pricing on the DELTA 3 — though the standard model is newer and less proven than its Plus and Max siblings. Anker offers a nearly-as-good app (4.5/5) and a unit reviewers already call the mid-size one to beat, though its SOLIX support has slipped from its once-excellent standard. Buy from a retailer with an easy return window either way, and let the $130 and your cycling habits, not the badge, decide.
Growth path
DELTA 3
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 1,024Wh.
Accepts up to 500W of solar. Suitable for a 1-2 panel setup.
Generous port selection supports complex multi-device setups.
Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.
SOLIX C1000 Gen 2
EXPANDABLESupports Anker expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 1,024Wh.
Accepts up to 600W of solar. Suitable for a 1-2 panel setup.
Generous port selection supports complex multi-device setups.
Expansion batteries are Anker-specific. You're investing in the Anker ecosystem.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Both expand, so neither locks you out of growth — decide on capacity, price, and the rest, not the expansion checkbox.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
EcoFlow DELTA 3
Field data on the standard DELTA 3 is still preliminary — most published testing covers its Plus and Max siblings — so treat owner sentiment as an early readA1. Within that, the encouraging finding is noise: at low loads the fans often stay off entirely, making it effectively silent, and only barely audible from a few feet under moderate loadA1.
Its UPS switchover is quoted at about 10ms, fast enough that routers don't reset and fridges don't skip a compressor cycle, though that figure is observed on a sibling sharing the specA2. A promising, quiet, well-priced unit whose long-term record isn't written yet.
“At low loads (under 200W) the fans often stay completely off, making the Delta 3 effectively silent; under moderate load (500–800W) the fans are barely audible from three feet away.”
Sources
portablepowernerd.com · thesolarlab.com · outputreport.com
Anker SOLIX C1000 Gen 2
The C1000 Gen 2 is widely rated the mid-size unit to beat in 2026 — a refined, powerful, fast-charging update to a popular platformB4 — with HyperFlash recharging in about 49 minutesB1 and enough output to run a 1,500W space heater with headroomB3.
Its one consistent knock is fan noise: near-silent under 200W, but climbing to around 55dB during fast charging or output past 1,000WB2. A more proven, more capable unit than the DELTA 3 on paper, with the platform's familiar acoustic caveat under heavy load.
“Fast HyperFlash charging — a full recharge in roughly 49 minutes, noticeably quicker than the original C1000's ~58-80 minutes.”
Sources
thepowerpick.com · macrumors.com · outdoorgearlab.com · technerdo.com · mensjournal.com · powerstationadvisor.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
- Fast charging and higher output over the original are the standout gains; fan noise under load or fast charging is the top complaint. [SOLIX C1000 Gen 2 · 3 entries]
- A1
“At low loads (under 200W) the fans often stay completely off, making the Delta 3 effectively silent; under moderate load (500–800W) the fans are barely audible from three feet away.”
portablepowernerd.com — EcoFlow Delta 3 Tested: 2026 Hands-On Review; thesolarlab.com · 2026 · [positive]
- A2
“UPS switchover works as advertised — a power cut results in a ~10ms handoff, fast enough that routers don't reset, fridges don't skip a compressor cycle, and CPAP machines don't interrupt therapy.”
outputreport.com / thesolarlab.com — DELTA 3 line UPS testing (observed on DELTA 3 Plus, which shares the 10ms UPS spec) · 2026 · [positive]
- B1
“Fast HyperFlash charging — a full recharge in roughly 49 minutes, noticeably quicker than the original C1000's ~58-80 minutes.”
thepowerpick.com / macrumors.com — Anker SOLIX C1000 Gen 2 review · 2026 · [positive]
- B2
“Fan noise is the single most common complaint — nearly silent at low load (about 35 dB under 200W), but the fans ramp up audibly during fast charging or heavy output, reaching around 55 dB at 1,000W-plus.”
outdoorgearlab.com / technerdo.com — C1000 Gen 2 review · 2026 · [negative]
- B3
“The higher continuous output crosses a useful threshold over the original — enough to run a standard 1,500W space heater with headroom to spare.”
thepowerpick.com / mensjournal.com — C1000 Gen 2 review · 2026 · [positive]
- B4
“Reviewers describe it as a refined, powerful, fast-charging update to a popular 1kWh platform, widely rated the mid-size unit to beat in 2026.”
thepowerpick.com / powerstationadvisor.com — C1000 Gen 2 review · 2026 · [positive]
Research compiled July 13, 2026.
Who Should Buy Which
Buy the DELTA 3 if you…
- →You want the lower price ($519) and the same 1,024Wh capacity — a $130 saving with no capacity loss.
- →You value a higher surge (3,600W) for starting motors, and quiet low-load operationA1.
- →You don't cycle the unit hard enough to care about the difference between 3,000 and 4,000 cycles.
If neither fits
Both cap near 1,024Wh, so neither covers a full 8-hour blackout alone — though both expand toward it. If you need whole-outage runtime in one box, step up to a 1.5-2kWh unit rather than paying up for either of these 1kWh models.
The Bottom Line
The DELTA 3 is the smarter buy for most people: $130 cheaper than the C1000 Gen 2, with the same 1,024Wh capacity, a higher surge, quieter low-load operation, and a cost-to-own within a penny of the Anker'sA1. It even leads on the specs you notice first, which is rare for the price leader.
The C1000 Gen 2 earns its premium in one clear profile: a heavy daily user who'll reach its 4,000-cycle battery and lean on its extra output, solar, and 49-minute chargingB1B4. If that's you, the $130 is well spent on the more refined, more proven unit. For everyone else, the DELTA 3 delivers the same core capability for less.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
EcoFlow DELTA 3 vs Anker SOLIX C1000 Gen 2 — which should I buy?
The DELTA 3 for value: at $519 it's $130 cheaper, holds the same 1,024Wh, surges higher (3,600W vs 3,000), and runs a touch quieter, with nearly identical cost-to-own. Choose the C1000 Gen 2 if you want its longer 4,000-cycle battery, 200W more output, 100W more solar, a 140W USB-C port, or its faster 49-minute charging — a coherent set of upgrades that justify $130 for heavy users.
Is the C1000 Gen 2 worth $130 more than the DELTA 3?
For heavy daily users, yes — its 4,000-cycle battery, faster charging, and extra output and solar add up over years of hard use. For most buyers, no: the DELTA 3 covers the same capacity and fundamentals for $130 less, and their cost-to-own is within a penny per kWh. The Anker's refinements are real but not essential for lighter, occasional use.
Do both expand and take the same solar?
Both expand with an add-on battery, so neither locks you in at 1,024Wh. Solar differs slightly: the C1000 Gen 2 takes 600W of input to the DELTA 3's 500W, so it recharges a bit faster from panels. Between the two, that's a minor edge for the Anker, but not a decisive one — expandability itself is a shared strength.
Which is quieter?
On paper the DELTA 3, rated 30dB to the C1000 Gen 2's 35, and early testing found its fans often stay off entirely at low loads. The C1000 Gen 2 is also quiet under light use but ramps to around 55dB during fast charging or heavy output. For light-load, in-room use, the DELTA 3 has the edge — one more way the cheaper unit doesn't feel like the compromise.
Where to buy
EcoFlow DELTA 3Pick
$549.00
$549.00 list · direct from EcoFlow
Anker SOLIX C1000 Gen 2
$549.99
$549.99 list · direct from Anker
Prices may vary by retailer and are subject to change.