Head-to-head test
EcoFlow DELTA Pro 3 vs Anker SOLIX S5000
The S5000 brings more battery, less weight and a longer cycle rating for less money, so the DELTA Pro 3 has to win on charging speed, a 12V outlet and a deeper expansion ceiling, and for a solar-first home those three don't cover the difference.
Full profiles: EcoFlow DELTA Pro 3 → · Anker SOLIX S5000 →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
The SOLIX S5000 holds 5,024Wh, the DELTA Pro 3 holds 4,096Wh, and the bigger battery is the one that costs less: $2,500 against $2,799. It is also the lighter box by 15.4 lb. That is not the usual trade, where you pay for capacity in dollars or in pounds. Here you pay in neither.
The Pro 3 is not out of arguments. It refills from several sources at once, up to 7,000W of combined input with 0 to 80% in about 50 minutesA3. It has a 12V car outlet and four USB-A ports where the S5000 has no car outlet and one USB-A. And its expansion path runs toward 48kWhA1, deeper than the five extra packs Anker allows.
None of that outweighs a bigger, longer-rated battery at a lower price for a house that backs up from solar. The one honest reason to pause is evidence: the Pro 3 has been through reviewers' handsA4, and nobody outside Anker has tested the S5000 yetB0.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
cost / lifetime kWh
Put the lower price on top of that and the cost per lifetime kWh falls to under half, $0.08 against $0.17. The catch is where the 6,000 comes from: it is Anker's own ratingB12, while the Pro 3's 4,000-cycle figure is a published minimumA2. Even if the S5000 fell well short of its rating, it would have a long way to fall before the Pro 3 caught it.
DELTA Pro 3: 4,096Wh x 4,000 cycles = 16,384 kWh of rated lifetime energySOLIX S5000: 5,024Wh x 6,000 cycles = 30,144 kWh of rated lifetime energyCost per lifetime kWh: $0.17 for the DELTA Pro 3, $0.08 for the SOLIX S5000
Why it mattersAnyone cycling the battery every day off a solar array should treat this as the deciding number.
solar input
The Pro 3's famous charging speed lives in the multi-source number, which needs wall, solar and more feeding it at once. In a long outage with the grid down, the sun is usually the only source you have, and on that source the two are even while the S5000 ends the refill holding more.
DELTA Pro 3 solar input: 2,600W into 4,096WhSOLIX S5000 solar input: 3,000W across two inputs into 5,024WhB5DELTA Pro 3 multi-charge: up to 7,000W combined input, 0-80% in about 50 minutesA3
Why it mattersSolar-first outage planners shouldn't pay for the Pro 3's charging speed unless they also own a generator or a 240V circuit to feed it.
An unheated garage in a northern January is exactly where the label pushes it and exactly where it can refuse to charge. The 15.4 lb it saves over the Pro 3 helps when you wheel it to a warmer spot, but the right answer is to pick that spot on day one: a basement or utility room inside the heated envelope.
SOLIX S5000: 97 lb, on wheels with a pull rod and foot pedalB11Anker's label rates the S5000 for non-habitable spaces, outside sleeping rooms and living areasB7SOLIX S5000 charges only between 32 and 104 FB18
Why it mattersCold-climate buyers should plan the S5000's home before it arrives, not after the first frost.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: The S5000 is rated for 30,144 kWh over its life against the Pro 3's 16,384, which decides more than any single spec.
cost / lifetime kWh
Eight cents a lifetime kilowatt-hour against seventeen. The S5000 is the cheaper box and the longer-lived one, so the per-kWh figure is not a close call that a coupon could reverse.
At one full cycle a day, the ratings work out to 16.4 years for the S5000 and 11 for the Pro 3. Both warranties run 5 years, so neither maker is promising the back half of that. The rating is what you're buying, and the S5000's is Anker's ownB12.
Growth Path
Selected because: Both expand, and the Pro 3's ceiling toward 48kWh is the clearest thing it offers that the S5000 doesn't.
solar input
The Pro 3 has the taller ladder. Its expansion runs toward 48kWhA1; the S5000 stops at five BP5000 packs, 30,144Wh in totalB6. For a house that already knows it wants a wall of batteries, that is a real reason to stay with EcoFlow.
For everyone else the base unit is what matters, and the S5000 starts 928Wh higher. Thirty kilowatt-hours is already a lot of basement.
Portability & Form Factor
Selected because: At 112.4 and 97 lb, both roll rather than carry, and the 15.4 lb between them shows up at every step and curb.
weight
Neither of these goes in a hatchback by yourself. The S5000 tips back onto its wheels with a foot step marked STEP ONB10 and rolls on a pull rodB11; the Pro 3 is the heavier of the two by 15.4 lb, which you feel most on the one stair between the garage and the house.
The engine hands the S5000 the camping and tailgate rows on weight. Treat that as a statement about which box is less awkward to move, not about either being a take-along.
Brand Trust
Selected because: One side has reviewer history and the other has only its maker's documentation, so the brand record carries real weight.
This is the Pro 3's best section. It has reviewer coverageA4 and EcoFlow has the larger community and ecosystem to lean on. The S5000 has a rating label, a product page and UL 9540 certificationB19, which establishes what it is but not how it ages.
If a track record matters more to you than a lower bill, this is where you'd decide for EcoFlow.
Strengths & trade-offs
EcoFlow DELTA Pro 3
Strengths
- Solid all-rounder with standard specs.
Trade-offs
- –Significantly heavier (+15.4 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
- –Shorter-lived battery — rated for 4,000 charge cycles vs the SOLIX S5000's 6,000, so it wears out sooner.
Anker SOLIX S5000
Strengths
- +Costs $299 less
- +Lighter by 15.4 lb
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
- +Rated for 6,000 charge cycles — much longer battery lifespan
Trade-offs
- –Very heavy unit that may be difficult for one person to lift.
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
SOLIX S5000
The DELTA Pro 3 at 112.4 lbs is not a take-along — it rolls off a truck bed if it travels at all, so this scenario belongs to the SOLIX S5000 by default — and it earns it, covering the 2,100Wh with 2,170Wh to spare. Capacity was never the DELTA Pro 3's problem here; getting to a campsite was.
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
Either unit
Both survive the blackout with similar margin, and both list a UPS mode — compare their stated switchover classes, and remember those are manufacturer ratings, not measurements.
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
A CPAP is about 40W for eight hours, so both cover the night many times over and the capacity margin is a formality. Both happen to list 30dB — two makers' own figures landing on the same number rather than a measured tie — so there is nothing in the noise column to separate them either. Buy whichever is cheaper or easier to carry.
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
Either unit
Both power your workstation all day without strain, and their USB-C output is a wash — pick on weight, ports, or price.
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
SOLIX S5000
The DELTA Pro 3 at 112.4 lbs is not a take-along — it rolls off a truck bed if it travels at all, so this scenario belongs to the SOLIX S5000 by default — and it earns it, covering the 670Wh with 3,600Wh to spare. Capacity was never the DELTA Pro 3's problem here; getting to a tailgate was.
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 covers this scenario's 4,685Wh: the DELTA Pro 3 comes up 1,203Wh short (about 74% covered), the SOLIX S5000 415Wh (91%) (its nameplate 5,024Wh actually clears this — the flat 15% conversion allowance is what tips it under). 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
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 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: SOLIX S5000 runs 20.8h vs 17h.
$2,499.99 list · direct from Anker
Planning for more than this? Describe your whole setup and get it sized →
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 0–284.7hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–56.9hHigh-Draw Appliances
These reveal the real limitsscale 0–4.3h¹ 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
October 9, 2026
Verdict: the SOLIX S5000
Take the SOLIX S5000. It carries 5,024Wh to the DELTA Pro 3's 4,096Wh, a 4,500W inverter to its 4,000W, and a 6,000-cycle rating to its 4,000, while weighing 97 lb against 112.4 and costing $2,500 against $2,799. Every spec that decides a home-backup purchase points the same way. The Pro 3 keeps three real advantages: multi-source charging up to 7,000WA3, a 12V car outlet the S5000 doesn't have, and expansion toward 48kWhA1. The confidence stops at 7 because the S5000's case rests on Anker's own documentationB0 while the Pro 3 has reviewer history behind itA4.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of October 9, 2026. The links below open EcoFlow's and Anker's current prices.
$2,499.99 · direct from Anker
or check the DELTA Pro 3 price$2,799.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated October 9, 2026
Black Friday · 45 days out
Price to beat:DELTA Pro 3 $2,399
The lowest we have recorded. A Black Friday price above it is a sale this unit has already had.
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): RV Living.
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 Pro 3 rates 4.0/5 (42nd percentile of 20 Home Backup-class units), and SOLIX S5000 rates 4.6/5 (74th percentile of 20 Home Backup-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.
Weight Reality Check
Neither unit is grab-and-go. The SOLIX S5000 (97 lbs) is manageable solo but heavier than a large checked suitcase. The DELTA Pro 3 (112.4 lbs) is firmly a two-person lift. It goes where you put it and stays there. That's a 15 lb difference.
Warranty: No Difference
Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here.
Battery Lifespan in Real Years
The SOLIX S5000 is rated for 6,000 cycles vs 4,000. In real life: at daily use, that's 16.4 vs 11 years. At weekend use (twice a week), it's 58 vs 38 years. After hitting the cycle limit, the battery doesn't die — it drops to ~80% of original capacity, which is still very usable.
Full record above — the Test Desk pick is the SOLIX S5000.
Check SOLIX S5000 price →or check the DELTA Pro 3 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 SOLIX S5000 wins on both sticker price and long-term value. At $0.08/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
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. At the top of the range sit two whole-home paths: the TITAN line, one 5 kWh unit that grows to 30 kWh, and the DELTA Pro Ultra platform, which stacks batteries and inverters further — flagship paths, not line-wide features.
Worth knowing
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
A very large consumer-electronics parent behind the SOLIX line, and InfiniPower, Anker's name for the cell and design approach it credits for long cycle life.
Worth knowing
Support quality on SOLIX units appears to have slipped from Anker's historically strong level, firmware updates have removed features without warning, and the expansion ecosystem is smaller than EcoFlow's.
Analyst note
EcoFlow has the bigger community, the deeper home-energy ecosystem and the longer track record in this class. Anker brings the stronger spec sheet to this particular pair, but the brand record on SOLIX support is trending the wrong way, so register the unit and keep the paperwork.
Growth path
DELTA Pro 3
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 4,096Wh.
Accepts up to 2,600W 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.
SOLIX S5000
EXPANDABLESupports Anker expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 5,024Wh.
Accepts up to 3,000W of solar. Enough for a serious multi-panel array.
Adequate ports for most setups, but heavy users may want a power strip.
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 Pro 3
Our ledger for the Pro 3 is reviewer and spec coverage rather than long-term owner reportsA0. Reviewers call it a gold-standard whole-home backupA4, and the praise gathers around the fast multi-source chargingA3 and the dual-voltage inverter with its long expansion runwayA1. The consistent knock is the mass, which reviewers flag every timeA4.
“4,096Wh LFP battery with 4,000W continuous AC output (6,000W with X-Boost) and dual-voltage 120V/240V, expandable to 48kWh.”
Sources
ecoflow.com · amazon.com · homedepot.com · thepowerpick.com · outboundpower.com · techradar.com · thesolarlab.com
Anker SOLIX S5000
There is no field evidence on the S5000 yet; what exists is Anker's own documentationB0. That paperwork establishes the 5,024Wh LiFePO4 packB1, the 4,500W split-phase outputB2B14, the 6,000-cycle ratingB12 and UL 9540 certificationB19. Runtime, idle-draw and lifespan figures are Anker's internal testingB12B16, not anything measured from the outside.
“5,024 Wh LiFePO4 pack rated 16 V, 314 Ah; the cell code IFpP72/175/208[5S] reads as five large prismatic cells in series.”
Sources
ankersolix.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
- Huge 4,096Wh LFP capacity, 4,000W dual-voltage output, very fast charging, and big expandability are the standout praise; it's heavy at ~113 lbs. [DELTA Pro 3 · 2 entries]
- No owner or reviewer reports exist yet: every entry is Anker documentation (rating label, product page, launch announcement), plus one of our own readings of the app and label drawing. [SOLIX S5000 · 20 entries]
- A1
“4,096Wh LFP battery with 4,000W continuous AC output (6,000W with X-Boost) and dual-voltage 120V/240V, expandable to 48kWh.”
ecoflow.com / amazon.com — DELTA Pro 3 · 2026 · [positive]
- A2
“LiFePO4 rated for 4,000+ cycles to 80% (10+ years), with an IP65 battery rating.”
homedepot.com / thepowerpick.com — DELTA Pro 3 review · 2026 · [positive]
- A3
“Multi-charge technology reaches 0-80% in about 50 minutes using up to 7,000W input, with a full charge in roughly 90 minutes; up to 2,600W solar.”
outboundpower.com / techradar.com — DELTA Pro 3 review · 2026 · [positive]
- A4
“Weighs about 113.5 lbs; reviewers call it a gold-standard whole-home backup unit for 2026.”
techradar.com / thesolarlab.com — DELTA Pro 3 review · 2026 · [positive]
- B1
“5,024 Wh LiFePO4 pack rated 16 V, 314 Ah; the cell code IFpP72/175/208[5S] reads as five large prismatic cells in series.”
Anker rating label, model AS510 (certified 2026-09-15) · 2026-09-15 · [positive]
- B2
“AC output 4,500 W max, either at 120 V (37.5 A across the outlets) or at 120/240 V split-phase (18.75 A).”
Anker rating label, model AS510 (certified 2026-09-15) · 2026-09-15 · [positive]
- B5
“Two solar inputs, 3,000 W together: 11–60 V at 17 A (1,000 W) and 16–165 V at 17 A (2,000 W).”
Anker rating label, model AS510 (certified 2026-09-15) · 2026-09-15 · [positive]
- B6
“Expands with up to five BP5000 expansion batteries (model AS5101A1-85), each 5,024 Wh, for 30,144 Wh in total. They join through a 400 V DC port rated 9,000 W in and 7,500 W out; each battery charges at up to 3,200 W and discharges at up to 3,000 W.”
Anker rating label, model AS510 (certified 2026-09-15) · 2026-09-15 · [positive]
- B7
“Rated for residential non-habitable spaces; holding more than 1 kWh, it belongs outside sleeping rooms and other living spaces.”
Anker rating label, model AS510 (certified 2026-09-15) · 2026-09-15 · [mixed]
- B10
“An upright cabinet with a handle on top, a full-width front panel with a display, and wheels at the base; the label drawing of the back adds a foot step marked STEP ON for tipping it back onto its wheels.”
Power Station Arena, read from the S5000 card in the Anker app and the label drawing, 2026-09-20 · 2026-09-15 · [positive]
- B11
“Net weight 97 lb; 10.6 × 22.0 × 15.2 in (W × D × H), on wheels with a pull rod and foot pedal.”
Anker SOLIX S5000 product page, ankersolix.com/s5000 (published 2026-10-09) · 2026-10-09 · [positive]
- B12
“Cycle life: 6,000 cycles to 80% capacity, 10,000 cycles to 60%; Anker estimates a 15-year lifespan at 1 to 2 cycles a day, with 5 years of product coverage.”
Anker SOLIX S5000 product page, ankersolix.com/s5000 (published 2026-10-09) · 2026-10-09 · [positive]
- B14
“4,500 W rated, 8,000 W peak AC output; bypass mode passes up to 4,500 W.”
Anker SOLIX S5000 product page, ankersolix.com/s5000 (published 2026-10-09) · 2026-10-09 · [positive]
- B15
“Front panel: four NEMA 5-20R outlets at 120 V, one L14-30R and one TT-30R, plus USB-A 12 W, USB-C 15 W and USB-C 100 W. No 12 V car outlet is listed.”
Anker SOLIX S5000 product page, ankersolix.com/s5000 (published 2026-10-09) · 2026-10-09 · [neutral]
- B16
“Idle draw 8.8 W on 120 V output and 13.7 W on 240 V output (Anker internal testing).”
Anker SOLIX S5000 product page, ankersolix.com/s5000 (published 2026-10-09) · 2026-10-09 · [positive]
- B17
“Single-unit charging power 4,300 W; Anker quotes 0 to 100% in 99 minutes. AC input 1,800 W at 120 V or 4,500 W at 240 V.”
Anker SOLIX S5000 product page, ankersolix.com/s5000 (published 2026-10-09) · 2026-10-09 · [positive]
- B18
“Discharges from -4°F to 104°F and charges from 32°F to 104°F.”
Anker SOLIX S5000 product page, ankersolix.com/s5000 (published 2026-10-09) · 2026-10-09 · [neutral]
- B19
“UL 9540 and UL 9540A certified.”
Anker SOLIX S5000 product page, ankersolix.com/s5000 (published 2026-10-09) · 2026-10-09 · [positive]
Research compiled October 9, 2026.
Who Should Buy Which
Buy the DELTA Pro 3 if you…
- →You want a battery wall that keeps growing toward 48kWh and don't want to switch brands halfway thereA1.
- →You own a generator or 240V charging and want the 7,000W combined input to refill between stormsA3.
- →You run a 12V fridge or other car-socket gear straight off the unit.
- →You'd rather buy the box reviewers have already put through its pacesA4.
Buy the SOLIX S5000 if you…
- →You're backing up a house from rooftop or ground-mount solar and will cycle it every day, where the 6,000-cycle rating and lower price compound.
- →You'll wheel it between a utility room and the driveway a few times a year and want the lighter of two heavy boxes.
- →You want the most battery for the money in this pair and can live without a 12V car outlet.
If neither fits
If your outages are a few hours of fridge, router and phone charging, both of these are basement furniture you'll never fill. Close the tab and look at a mid-size portable station you can lift with one hand.
The Bottom Line
More battery, more cycles, more inverter, less weight and a smaller bill. The S5000 wins every row that decides a solar-backed home, and the Pro 3's real strengths, multi-source charging, a 12V socket and a taller expansion ceiling, belong to narrower buyers.
The only thing the Pro 3 has that money can't fix is a record. If that's worth the extra to you, buy it with a clear head. Otherwise, roll the S5000 into the utility room and let it do the arithmetic for you.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the Anker SOLIX S5000 better than the EcoFlow DELTA Pro 3?
On the spec sheet, yes. It holds 5,024Wh to 4,096Wh, rates 6,000 cycles to 4,000, outputs 4,500W to 4,000W and weighs 97 lb to 112.4, at the lower price. What the Pro 3 has that the S5000 lacks is reviewer history and a faster multi-source charge.
Which charges faster, the DELTA Pro 3 or the SOLIX S5000?
The Pro 3, when you can feed it several sources at once: up to 7,000W combined, 0 to 80% in about 50 minutes. Anker rates the S5000 at 4,300W single-unit and quotes a full charge in 99 minutes. From solar alone the gap closes, since 2,600W into 4,096Wh and 3,000W into 5,024Wh both take roughly an hour and a half of full input.
Does the SOLIX S5000 have a 12V car outlet like the DELTA Pro 3?
No. Anker lists four NEMA 5-20R outlets, an L14-30R, a TT-30R and three USB ports, with no 12V car outlet. If you run a 12V fridge or similar gear directly, the Pro 3 is the one with the socket.
Can I keep the SOLIX S5000 in my garage?
Anker's label rates it for non-habitable spaces and keeps it out of sleeping rooms, so a garage is where it's meant to go. Just know it only charges between 32 and 104 F. In an unheated garage in winter, a basement or utility room is the safer home.
Where to buy
EcoFlow DELTA Pro 3
$2,799.00
$2,799.00 · direct from EcoFlow
Last checked 28 days ago. Prices move — check before you buy.
Anker SOLIX S5000Pick
$2,499.99
$2,499.99 · direct from Anker
Prices may vary by retailer and are subject to change.