Head-to-head test
EcoFlow DELTA Pro vs Goal Zero Sherpa 100AC
The DELTA Pro holds thirty-eight times the energy for a bit over six times the money, and that settles nothing, because the Sherpa 100AC's entire job is to weigh 2.1 lbs and stay under the 100Wh ceiling that decides what boards a plane.
Full profiles: EcoFlow DELTA Pro → · Goal Zero Sherpa 100AC →
Written by Ian SchneiderUpdated
Solar & Off-Grid Tester, Station Arena Test Desk
$1,899.00 · direct from EcoFlow
Last checked 3 days ago. Prices move — check before you buy.
$249.95 · direct from Goal Zero
Last checked 3 days ago. Prices move — check before you buy.
Spec deltas
Thirty-eight times the energy for a bit over six times the money. The DELTA Pro carries 3,600Wh at $1,599; the Sherpa 100AC carries 94.7Wh at $250. Across our six load profiles the DELTA Pro clears five and the Sherpa clears none.
That result is a category test, not a contest. The Sherpa is a 2.1-lb bank built at 94.7Wh so it stays under the 100Wh flight limit, with a real 100W AC socket on it for a laptop brick or a camera cradleB1. The DELTA Pro is 99 lbs of home backup that travels on wheels and wants flat, smooth groundA2. Neither can do the other's job, and no amount of scenario arithmetic changes that.
So the useful thing this page can do is tell you which side of the line your load list falls on. Anything with a motor, a compressor or a heating element is past the Sherpa's 100W continuous rating before runtime is even a question. Anything that has to fly is past the DELTA Pro's by a margin no battery gets an exemption from. If your list is a laptop, a phone and a camera battery, buy the small one and keep the $1,349 difference.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
rated cycles
Multiply capacity by rated cycles and the DELTA Pro is contracted to deliver 12,600 kWh over its life against the Sherpa's 47 kWh. The Sherpa is not the budget option. It is the most expensive energy on this page, and the $250 is buying a form factor rather than a supply.
DELTA Pro: $1,599 for 3,600Wh, rated 3,500 cyclesSherpa 100AC: $250 for 94.7Wh, rated 500 cyclesCost per watt-hour as bought: $0.44 vs $2.64
Why it mattersIf you're looking at the Sherpa because $1,599 felt steep, you're solving the wrong problem: it's cheaper to buy, not cheaper to own.
That means a bigger battery would rescue only half this board. Put 3,600Wh behind a 100W inverter and the tailgate still declines, because the limit is the inverter and not the fuel. The DELTA Pro's 3,600W continuous and 7,200W surge are thirty-six and forty-eight times the Sherpa's, which is why it's the only one of the two that ever gets as far as discussing runtime.
Sherpa 100AC: 100W continuous, 150W surgeTailgate Party peaks at 400W; the 8-Hour Blackout peaks at 150WSherpa has 80Wh usable against the CPAP night's 320Wh
Why it mattersSort your loads by watts before you sort them by watt-hours; if anything draws over 100W, the Sherpa is out on the nameplate.
weight
The Sherpa's capacity isn't small because Goal Zero aimed low. 94.7Wh sits a hair under the 100Wh ceiling that governs what you can carry onto a planeB1, so the number is a regulatory result rather than an engineering one. The DELTA Pro answers the same problem from the other end: it takes 1,600W of solar input, sixteen times the Sherpa's entire 100W output rating, because it's built to stay put and refill rather than to travel.
Sherpa 100AC: 2.1 lbs, 94.7Wh, under the 100Wh flight limitB1DELTA Pro: 99 lbs, moved on wheels and happiest on flat, smooth groundA2DELTA Pro accepts 1,600W of solar input
Why it mattersIf the unit has to leave the property more than a couple of times a year, that decides this before any other spec gets a vote.
One of those is a purchasing problem and the other is a physics problem. The DELTA Pro takes expansion batteries, so a full van day is a question of how many you buy. The Sherpa is sealed at 94.7Wh, so no configuration of it gets closer.
Van Life Daily needs 4,685WhDELTA Pro: 3,060Wh usable, 1,625Wh shortSherpa 100AC: 80Wh usable, 4,605Wh shortDELTA Pro accepts EcoFlow expansion batteries; the Sherpa is sealed
Why it mattersFull-timers running a 4,685Wh day should read the DELTA Pro as a starting point and price an expansion battery in now, rather than buying it as shipped and finding out in week two.
The specific dimensions that decide these two units — everything else is a tie.
Your Life, Your Pick
Selected because: The Sherpa 100AC clears none of the six load profiles, and the interesting part is whether its 100W rating or its 80Wh of usable energy runs out first.
Five wins, and then a sixth where nobody is left standing. One thing to know about how the board computes: every percentage comes off a flat 85% of nameplate applied to both units, so the DELTA Pro is scored on 3,060Wh and the Sherpa on 80Wh rather than on 3,600 and 94.7. That derate is an engine constant, not a measurement of either unit. It's the same haircut on both, so the comparison holds.
Where the Sherpa's losses land matters more than the scoreline. On the tailgate it never starts: a 400W peak against a 100W continuous rating is a refusal, not a shortage. On the camping weekend the arithmetic never gets interesting either, since 80Wh of usable energy against a 2,100Wh two-night load is about 4% of the job. Read the board as a sorting exercise rather than a match.
Portability & Form Factor
Selected because: 2.1 lbs against 99 lbs is the one axis the smaller unit wins outright, and for a traveling buyer it's the only axis that gets a vote.
weight
Ninety-nine pounds doesn't get carried. It gets rolled, over flat and smooth ground, and a cart comes out the moment the ground isn'tA2. Decide where it's going to live before you buy it, because in practice you will move it there once.
The Sherpa is a different kind of object: 2.1 lbs in a laptop sleeve, with 15W wireless charging on the lidB2. One review took a laptop from 10% to 100% off its USB-C port in ninety minutes and spent 45% of the battery doing itB3, which is a fair portrait of the whole product. At 45% a charge, two of them and it's done. If that's your day, the weight isn't a consolation prize, it's the entire reason to buy.
Lifetime Value
Selected because: Thirteen cents a lifetime kilowatt-hour against five dollars and twenty-eight, on 3,500 rated cycles against 500.
cost / lifetime kWh
Here's the figure that complicates the obvious answer: on a twice-a-week schedule the Sherpa costs 14 cents a day to own and the DELTA Pro costs 13. The Sherpa is roughly six times cheaper to buy and spends its cycle life about seven times sooner, and those two facts very nearly cancel. If all you ever wanted was a laptop's worth of power on Saturdays, lifetime economics is not the argument that should move you.
What the penny hides is what the day buys. The same rate gets you 3,600Wh on one side of the page and 94.7Wh on the other, and the DELTA Pro's cycle count doesn't run out until 34 years of weekend use where the Sherpa's is spent at 5. Reaching that limit isn't death either. Capacity settles at roughly 80% and the unit keeps working, but the Sherpa gets there while the DELTA Pro is barely started.
What the Specs Don't Tell You
Selected because: Nine cards fire here, and one of them is unfair to the Sherpa: a sealed 94.7Wh is the design brief for a bank that has to clear the 100Wh flight limit, not a shortcoming.
rated cycles
The card worth acting on is the surge one, and the ratio is the least informative part of it. The DELTA Pro's 2x surge-to-continuous against the Sherpa's 1.5x tells you less than the absolute ceilings do: 7,200W against 150W. Motors don't read ratios. A fridge or a power tool that briefly pulls two to three times its rated draw is an ordinary event for one of these and outside the nameplate for the other.
Two more asymmetries are worth naming straight. The DELTA Pro is rated for a 20ms changeover, so a PC or a router rides through an outage on it, and the Sherpa has no UPS mode at all. Treat that 20ms as a stated ceiling rather than something we clocked. And only the DELTA Pro publishes a noise figure, 60dB. The Sherpa's blank isn't quiet, it's missing, so buying for a bedroom means treating 60dB as the only measured number on the table and going and listening to the other one before you commit.
Strengths & trade-offs
EcoFlow DELTA Pro
Strengths
- +Larger battery capacity
- +Higher AC output
- +Longer warranty
- +Faster solar charging
- +Rated for 3,500 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$1,649.1) than the Sherpa 100AC.
- –Significantly heavier (+96.9 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
- –Can receive complaints about fan noise under heavy load.
Goal Zero Sherpa 100AC
Strengths
- +Costs $1,649.1 less
- +Lighter by 96.9 lb
Trade-offs
- –Weaker inverter (-3,500W) limits appliance compatibility.
- –Lacks smartphone app control for remote monitoring.
- –Sealed capacity — the DELTA Pro can add batteries to grow past 94.7Wh; this one can't.
- –Shorter-lived battery — rated for 500 charge cycles vs the DELTA Pro's 3,500, 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 seven 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
DELTA Pro
Two nights of camp loads come to 2,100Wh. The DELTA Pro packs up on Sunday with 960Wh unused, which is a comfortable margin rather than a lucky one. The Sherpa's 80Wh of usable energy covers about 4% of the weekend, so think of it as the thing that tops up the camera and the headlamps, not the thing that runs the site.
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 Pro
An eight-hour outage draws 1,645Wh and peaks at 150W. The DELTA Pro comes out the other side with 1,415Wh in hand, enough to cover most of a second night of the same. The Sherpa's continuous rating is 100W and 150W is only its momentary surge ceiling, so it's beaten on the peak and 1,565Wh short on the energy besides.
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 Pro
The gentlest load on the board, and the Sherpa still can't finish it: 320Wh over the night against about 80Wh usable leaves it 240Wh short, a quarter of the night covered before it stops. The DELTA Pro spends 10% of itself. There's no noise argument to break this on in either direction, because the Sherpa publishes no figure to argue with. It's decided on watt-hours, and decided early.
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 Pro
A full working day of laptop, screen and connectivity runs 910Wh. The DELTA Pro does it and still holds 2,150Wh, which is two more workdays. The Sherpa covers under a tenth of one, 80Wh usable against 910Wh, so it's the thing that buys you the last hour of a meeting rather than the thing that runs the office.
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 Pro
This one ends at the inverter, not the battery. A 400W peak against a 100W continuous rating and a 150W surge ceiling means the Sherpa declines the job before capacity is ever consulted. The DELTA Pro finishes with 2,390Wh spare, three and a half times what the party used.
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
Nobody wins this one, and the two failures aren't remotely the same. A full van day wants 4,685Wh. The DELTA Pro covers about two-thirds of it and stops 1,625Wh short, which is a gap you close by buying an expansion battery. The Sherpa stops 4,605Wh short, covering under 2% of the day, and it's sealed, so no version of it gets closer. Same result line, entirely different problem.
Battery budget usedlower = more headroom
LOAD Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h
SCN-07 · an afternoon · needs 100Wh
Afternoon Off-Grid
Phones and a speaker at the park, beach, or campsite — the small-unit job description
DELTA Pro
The Sherpa 100AC doesn't finish — 80Wh usable against the 100Wh this needs leaves it 20Wh short, about 81% of the scenario covered. The DELTA Pro covers it with 2,960Wh to spare.
Battery budget usedlower = more headroom
LOAD Phone Charger (×2) 30W×2h · Bluetooth Speaker 10W×4h
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
Only the DELTA Pro can start this 205W load.
$1,899 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 0–204hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–40.8hHigh-Draw Appliances
These reveal the real limitsscale 0–3.1h¹ 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
August 9, 2026
Verdict: the DELTA Pro, on Power Score margin
Take the DELTA Pro if these two are genuinely on the same shortlist. It clears five of the six load profiles on our board, loses the sixth to a van-life day that beats both, and its 3,500 rated cycles against the Sherpa's 500 mean the lower sticker is buying far less energy than it looks like it is. Confidence sits at 7 rather than 9 for one reason: most people asking this question aren't choosing. The Sherpa's 94.7Wh and 2.1 lbs exist to clear the 100Wh airline limitB1, and if that's your requirement then the DELTA Pro isn't a worse answer, it's not an answer. Sort your load list by watts before watt-hours. Anything on it over 100W settles this.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of August 9, 2026. The links below open EcoFlow's and Goal Zero's current prices.
$1,899.00 · direct from EcoFlow
Last checked 3 days ago. Prices move — check before you buy.
or check the Sherpa 100AC price$249.95 list
Written by Ian Schneider, Solar & Off-Grid Tester · Station Arena Test Desk · Updated August 9, 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.
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 rates 3.9/5 (33rd percentile of 16 Home Backup-class units), and Sherpa 100AC rates 3.3/5 (1st 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.
99 lbs vs 2.1 lbs Is Not a Spectrum
Ninety-nine pounds is a two-person lift into a trunk, and the reason it has wheels is that nobody expected you to do it twice. Pick where it lives and accept that's where it lives. The other unit on this page weighs 2.1 lbs and travels in the same bag as the laptop it's there to charge. These aren't two points on one scale. They're two different objects that happen to store electricity.
DELTA Pro: 60dB Under Load
60dB is about as loud as a normal conversation. The Sherpa 100AC publishes no figure to compare it against, which cuts both ways. For most people, fan noise around 45dB and up is where sleep starts to suffer.
Sherpa 100AC: No App Control
Without app control, you have to physically walk to the Sherpa 100AC to check battery level, adjust settings, or monitor power draw. The DELTA Pro lets you do all that from your phone, including getting low-battery alerts.
The Sherpa's Sealed Capacity Is the Design, Not the Flaw
Fixed at 94.7Wh reads like a limitation until you notice which side of 100Wh it lands on. That ceiling is what decides whether a battery can be carried onto a plane, so an expandable Sherpa would be a Sherpa that no longer does the one thing it exists to do. Count expandability for the DELTA Pro if your needs might climb toward partial-home backup, because it genuinely takes expansion batteries. Don't count it against the Sherpa as a defect.
Read the Ceilings, Not the Ratio
2x against 1.5x is the least informative way to put this. The DELTA Pro runs 3,600W continuous and peaks at 7,200W; the Sherpa runs 100W and peaks at 150W. A fridge or a power tool that briefly pulls two to three times its rated draw is an ordinary Tuesday for one of them and outside the nameplate for the other. Note which number is which, too: 150W is what the Sherpa survives for a moment, not what it holds.
Only the DELTA Pro Lists a UPS Mode
The DELTA Pro can sit between the wall and your gear and hand it to battery when the grid drops — rated ≤20ms — fine on paper for routers and most electronics; the fussiest PC power supplies sit right at this line. Worth it for a router, a desktop PC, or a CPAP. The Sherpa 100AC's spec sheet lists no UPS mode, so anything plugged into it rides an outage only as far as your reaction time.
Warranty Comparison
The DELTA Pro is covered for 5 years against the Sherpa 100AC's 2 years. The cheaper Sherpa 100AC does buy more warranty per dollar (8 years per $1,000 against 2.6), but that is a statement about price, not about coverage — if a fault appears in year 3, only one of these is still covered. An underrated factor if you're keeping this unit for years.
Battery Lifespan in Real Years
The DELTA Pro is rated for 3,500 cycles vs 500. In real life: at daily use, that's 9.6 vs 1.4 years. At weekend use (twice a week), it's 34 vs 5 years. One caution reading years across different sizes: a cycle is 3,600Wh on the DELTA Pro and 95Wh on the Sherpa 100AC, so count lifetime energy — roughly 12,600 kWh against 47 kWh over the rated life. After hitting the cycle limit, the battery doesn't die — it drops to ~80% of original capacity, which is still very usable.
Sherpa 100AC: Noise Level Not Disclosed
The DELTA Pro publishes its noise level (60dB); the Sherpa 100AC doesn't publish one. That isn't evidence the Sherpa 100AC is louder — it means there's no figure to hold it to, and no way to compare the two on this without hearing them. If you're buying for a bedroom, a CPAP, or an apartment, treat the DELTA Pro's 60dB as the only published number on the table — a spec-sheet figure, not a measurement — and look for hands-on reports of the Sherpa 100AC before deciding.
Full record above — the Test Desk pick is the DELTA Pro.
Check DELTA Pro price →or check the Sherpa 100AC 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 Sherpa 100AC is cheaper to buy, but the DELTA Pro is cheaper to own. At $0.15/kWh over its lifetime vs $5.28/kWh, the DELTA Pro's higher cycle life and capacity make each dollar go further over the years.
Delivers each lifetime kWh for $5.13 less — check the DELTA Pro price →
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
X-Stream fast charging and the deepest catalogue in the category: 12 to 15 models across the DELTA Pro, DELTA 3 and RIVER 3 lines, plus solar panels and smart home panels. The practical benefit for this unit is that expansion batteries and accessories stay easy to find years after you buy it.
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.
Goal Zero
Ecosystem
Focused — a compact current line (6th-gen Yeti and Yeti Pro series), the previous-gen X series still widely sold, Sherpa power banks for the under-100Wh tier, plus Alta coolers, Nomad/Ranger solar panels, and vehicle integration kits
Support
US-based company (Salt Lake City, owned by NRG Energy). Historically considered premium support, but 2025-2026 reports describe long wait times, unresponsive email communication, and tickets going unaddressed for weeks. The "premium support justifies premium pricing" argument is weakening.
Community
Small but loyal — strong following in overlanding and preparedness communities. Official community forums were recently shuttered, frustrating long-time users.
App experience
Rated 4.4/5 iOS (~1,200 ratings) but recent reviews skew negative — recurring connectivity issues, crashes, and stability problems.
Unique strength
Pioneer of the portable power market — strongest brand heritage. US-based company with ruggedized, weather-resistant designs (IP ratings vary by model). Integrated "Yeti-Ready" ecosystem with coolers, lights, and vehicle kits.
Worth knowing
Typically the priciest brand per watt-hour — though individual pairings vary, and on some pages the Yeti is the cheaper energy. Support quality has declined from its "premium" standard. Perceived as competitively stagnant vs. faster-innovating Chinese competitors. Reliability reports on newer models are concerning.
Analyst note
Two opposite bets on what a power company should be. EcoFlow's is breadth and release cadence, so whatever you need next there's a model for it and it charges fast. Goal Zero's is heritage and a tighter US-designed line built around its own accessories. For this matchup the brand argument barely signs the cheque: you're choosing between a 3,600Wh home unit and a 94.7Wh travel bank, and no amount of brand goodwill closes a gap that shape.
Growth path
DELTA Pro
EXPANDABLESupports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 3,600Wh.
Accepts up to 1,600W 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.
Sherpa 100AC
FIXED CAPACITYFixed at 95Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 60W 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 Sherpa 100AC is sealed at 95Wh, which is fine if that covers you. The DELTA Pro starts at 3,600Wh and can grow beyond it with EcoFlow expansion batteries — real headroom the Sherpa 100AC 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 Pro
The field record on the DELTA Pro is a home-backup record. It gets treated as a reference unit for whole-house essentials, running a fridge, lighting and a space heater together through outagesA1, and one longer account has it serving as primary backup across multiple overnight outages over several months without dramaA3. The consistent knock is the fans: past roughly 2,000W of draw they put out a high-pitched whine that's hard to ignore in a quiet room, though lighter loads stay civilA4.
One caveat on all of it. The available coverage runs the original DELTA Pro together with its heavier successor, so the wheels-and-telescoping-handle portability pictureA2 and the noise testingA4 describe the line rather than this exact unit. The traits carry. Any specific measured figure inside them belongs to the other model, so use the spec table on this page for anything you intend to hold EcoFlow to.
“Long regarded as a gold standard for home backup — designed for high-draw appliances and full-scale battery expansion, running home essentials like a fridge, lighting, and a space heater through outages.”
Sources
backuppowerhub.com · us.ecoflow.co · outdoorgearlab.com · bobvila.com · powerstationadvisor.com · robbsutton.com
Goal Zero Sherpa 100AC
Everything on record for the Sherpa 100AC is a review rather than a long-term ownership accountB1B2B3B4, so durability is unproven in either direction. What the reviews agree on is the shape of the thing: 94.7Wh under the flight limit with a genuine 100W AC socket for a laptop brick, a camera cradle or a small lampB1; 2 lbs with 15W wireless charging on topB2; and a USB-C-in design that refills from the same brick that charges your laptop, with no separate wall plug to packB3.
The most useful single data point is a measured one. A laptop went 10% to 100% in ninety minutes and it cost 45% of the Sherpa's batteryB3. That's the product in one line: a second laptop battery you can also plug a lamp into, pitched accurately as a travel pack for cameras, laptops and phonesB4.
“A 94.7Wh power bank — under the 100Wh FAA flight limit, so it's airline-approved — with a 100W AC port for laptop chargers, camera cradles, or small lamps.”
Sources
campingsolar.us · matadornetwork.com · gearjunkie.com · shotkit.com · packandtrail.com · the-gadgeteer.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
- Established home-backup platform with wheeled portability and massive expandability; the consistent knock is fan noise under heavy load. [DELTA Pro · 3 entries]
- Airline-legal 94.7Wh, a real 100W AC port, wireless charging, and 2-lb travel portability are the standout points. [Sherpa 100AC · 3 entries]
- A1
“Long regarded as a gold standard for home backup — designed for high-draw appliances and full-scale battery expansion, running home essentials like a fridge, lighting, and a space heater through outages.”
backuppowerhub.com / us.ecoflow.com — EcoFlow DELTA Pro review · 2025-2026 · [positive]
- A2
“Heavy but wheeled — integrated wheels and a telescoping handle help move its considerable weight, though they work best on flat, smooth surfaces; a cart is needed for uneven ground.”
outdoorgearlab.com / bobvila.com — DELTA Pro-line review · 2025-2026 · [mixed]
- A3
“Reliable through extended outage use — served as primary backup across multiple overnight outages over months, powering essentials simultaneously; LFP battery rated for thousands of cycles and 10+ years of daily use.”
powerstationadvisor.com / robbsutton.com — DELTA Pro-line review · 2025-2026 · [positive]
- A4
“Not silent under heavy load — under 2000W-plus draws the fans emit a noticeable high-pitched whine that's distracting in a quiet room, though it runs quietly enough at lighter loads.”
outdoorgearlab.com — DELTA Pro-line noise testing · 2025-2026 · [negative]
- B1
“A 94.7Wh power bank — under the 100Wh FAA flight limit, so it's airline-approved — with a 100W AC port for laptop chargers, camera cradles, or small lamps.”
campingsolar.us / matadornetwork.com — Sherpa 100AC review · 2026 · [positive]
- B2
“Weighs just 2 lbs and adds best-in-class 15W wireless charging; a tiny, elegant unit that fits in a laptop bag.”
gearjunkie.com / shotkit.com — Sherpa 100AC review · 2026 · [positive]
- B3
“Its 100W USB-C port charged a laptop from 10% to 100% in 90 minutes, drawing 45% from the Sherpa's battery, and it recharges from a USB-C source with no separate wall plug.”
packandtrail.com — Sherpa 100AC review · 2026 · [positive]
- B4
“A versatile travel power pack for cameras, laptops, and phones — ideal for digital nomads and outdoor creatives.”
the-gadgeteer.com — Sherpa 100AC review · 2026 · [positive]
Research compiled August 9, 2026.
Who Should Buy Which
Buy the DELTA Pro if you…
- →The household that wants lights, fridge and router to stay up through an eight-hour outage. That's a 1,645Wh evening, and the DELTA Pro ends it holding 1,415Wh in reserve.
- →Anyone whose load list has a motor on it. 3,600W continuous and 7,200W surge start compressors and power tools that a 100W inverter won't acknowledge.
- →The buyer who intends to still own this in a decade. 3,500 rated cycles is 9.6 years of cycling it every single day, and it takes expansion batteries if the need grows.
Buy the Sherpa 100AC if you…
- →The person who flies with a camera kit. 94.7Wh sits under the 100Wh carry-on ceilingB1, and the DELTA Pro's 3,600Wh isn't a heavier version of that, it's a category that doesn't board.
- →The cafe-and-airport laptop worker who needs one more full charge and a wireless pad for the phoneB2B3, and who is never going to own a 99-lb box.
- →The photographer packing light for a few days out, where 2.1 lbs in the bag beats every other considerationB4.
If neither fits
Full-time van dwellers, and anyone whose real load sits in between. A 4,685Wh van day leaves the DELTA Pro 1,625Wh short as shipped, so that buyer is shopping for a DELTA Pro plus expansion batteries and this page is only half the answer. And if your list is a laptop, a phone and some lights but it has to last all weekend, both of these are the wrong shape: the Sherpa is 830Wh short of a single workday, and the DELTA Pro is 99 lbs of answer to a question you didn't ask. That's a mid-size station's job, and it's the aisle you want.
The Bottom Line
Take the DELTA Pro if you're genuinely choosing between them. It clears five of the six loads on the board, the sixth defeats both, and over its rated life it delivers 12,600 kWh against 47. Six times the price for thirty-eight times the capacity was never the close call the two stickers make it look like.
The more common visitor here isn't choosing at all. They're working out what the Sherpa is, and the answer is a 2.1-lb laptop battery with a wall socket on it, sized under the flight limit on purposeB1. If that's what you needed, buy it and don't feel talked down to. If you need a fridge to stay cold, no version of it ever will.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Can the Goal Zero Sherpa 100AC run a CPAP overnight?
No. A CPAP night comes to 320Wh on our board and the Sherpa has about 80Wh usable, so it's 240Wh short and covers roughly a quarter of the night. The DELTA Pro finishes the same night having spent 10% of itself. If a CPAP is the reason you're shopping, the Sherpa isn't a candidate at any price.
Can you take the EcoFlow DELTA Pro on a plane?
No, and it isn't close. The carry-on limit is 100Wh, which is exactly why the Sherpa is built at 94.7Wh. The DELTA Pro's 3,600Wh is thirty-eight times that figure. If any part of your use case involves an airport, this comparison is already over and the Sherpa won it.
Is the DELTA Pro overkill for weekend camping?
Not on energy. A two-night camp runs 2,100Wh and it finishes with 960Wh spare, which is comfortable rather than excessive. The real objection is 99 lbs on wheels that want flat, smooth ground. Overkill here is a loading-and-unloading problem, not a watt-hours problem.
Which one is actually cheaper?
The Sherpa costs $250 against $1,599, and the DELTA Pro is cheaper by every measure after that one. Per watt-hour bought it's $0.44 against $2.64. Across rated cycle life it's 13 cents per kilowatt-hour against $5.28. The single place they converge is amortised daily cost on a twice-a-week schedule, where they land a penny apart.
Should I just buy both?
That's a more sensible question than it sounds, because they don't overlap. One is home backup that stays where you put it; the other is a 2.1-lb bank for the bag, and together they come to $1,849. If it has to be one purchase, decide on watts before watt-hours: anything over 100W settles it for the DELTA Pro, and anything that has to fly settles it for the Sherpa.
Where to buy
EcoFlow DELTA ProPick
$1,899.00
$1,899.00 · direct from EcoFlow
Last checked 3 days ago. Prices move — check before you buy.
Goal Zero Sherpa 100AC
$249.95
$249.95 · direct from Goal Zero
Last checked 3 days ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.