Where This Comparison Comes From

Every number in this article comes from one source video — Minute Man Solar's EcoFlow vs Jackery vs Anker SOLIX Top Pick, watched more than 820,000 times. The reviewer has been testing solar generators for almost ten years and has tested hundreds of units; in this video he compares three popular 2kWh-class models — the EcoFlow Delta 3 Max, the Jackery 2000 V2 and the Anker SOLIX S2000 — across inverter output, battery capacity, measured efficiency, solar input, charging speed, app features and price. If you would rather watch the test before reading the breakdown, the video is right here:

Minute Man Solar — "EcoFlow vs Jackery vs Anker SOLIX Top Pick"
Watch on YouTube →
820K+ views. A measured, ten-year-veteran comparison of the EcoFlow Delta 3 Max, Jackery 2000 V2 and Anker SOLIX S2000 — including real fridge runtime tests, inverter efficiency readings and per-watt cost.

The video is built around one honest question: if you could only choose one unit to get through a 12-hour blackout, which of these three do you take? The reviewer's method is what makes the answer trustworthy — he tests rather than speculates, and he is upfront about the situations where each unit wins. That is the same spirit we try to bring to every comparison guide we publish: real numbers, matched apples-to-apples, and a clear statement of which use case each option fits. Where the reviewer's data ends, our engineers' experience on the battery side of these systems fills in the context.

Why These Three Power Stations?

The three units in this comparison are not random picks — they are the volume sellers of the 2kWh class, the size most people actually buy for emergency backup and mobile power. EcoFlow, Jackery and Anker SOLIX are the three biggest names in the solar generator industry, and all three of these specific models sell heavily. The reviewer's framing matters: people buy solar generators for a handful of reasons, and the dominant one is convenience — they do not want to wire a system themselves, choose a battery voltage, size a charge controller or decide between PWM and MPPT. A power station collapses all of that into one box: buy it, pull it out, turn it on.

That is the real product category being compared, and it is worth keeping in mind when you read the specs that follow. These are not whole-home batteries, and none of them can run a house. They are engineered for a 12-hour blackout, a camping trip, an off-grid cabin, or keeping a fridge and a Wi-Fi router alive — and for that job, a 2kWh pack with a built-in inverter is the sweet spot most buyers land on. If that is your use case, the comparison below is directly relevant to your purchase decision.

The Three Contenders at a Glance

The EcoFlow Delta 3 Max is the physically largest of the three, the Jackery 2000 V2 sits in the middle, and the Anker SOLIX S2000 is the smallest — roughly half the footprint of the Delta 3 Max. The interesting part, as the reviewer points out, is that physical size and electrical specs do not line up the way you would expect. The Delta 3 Max has the biggest inverter and the biggest battery on paper, while the S2000 — the smallest box — packs nearly the same battery capacity into half the space. That mismatch is the theme of the whole comparison: bigger does not automatically mean better, and the specs that matter depend on what you actually need to run.

All three brands are, in the reviewer's words, equally competent in product quality, and all three carry roughly a five-year warranty with solid customer service. The differences that decide the purchase are functional — inverter size, efficiency, charging, solar input and software — which is exactly what the rest of this guide breaks down.

The Specs Side by Side

Before going through each category, here are the three units in one table. All figures are as measured or stated in the source video, and prices are as of filming — they change with sales, so treat them as a comparison point rather than a quote.

Specification EcoFlow Delta 3 Max Jackery 2000 V2 Anker SOLIX S2000
AC inverter output2,400W (up to 3,400W with X-Boost)2,200W1,500W
Battery capacity (LiFePO4)~2,480Wh~2,420Wh~2,100Wh
Inverter efficiency (measured)92%90%96% (highest tested by reviewer)
Idle power draw17W21W4W
Fridge runtime (measured)16h 55m17h 25m19h 20m
Solar input (max)500W400W400W
Solar connectorXT60iDC8020XT60i
Wall chargingup to 1,800Wup to 1,800W~1,100–1,200W (1,600W boost in app)
Rated cycle life4,000 (80% usable)4,000 (80% usable)10,000 (60% usable)
Price (at filming)$800$900$600
Cost per "whole watt"$0.77$1.30$0.73

A note on "whole watt": the reviewer's term for factoring inverter wattage, battery watt-hours and solar input together to compare value across differently-shaped units. It is a useful lens, but treat it as one input among several — runtime, efficiency and physical size matter just as much for a real purchase.

Inverter Output: How Much Can Each Unit Push?

The inverter is the engine of a solar generator: the bigger it is, the more you can run at once, at the cost of some efficiency. The Delta 3 Max leads at 2,400W, and its X-Boost feature can push further — up to 3,400W — by lowering the output voltage to squeeze out more amperage, which the reviewer notes may make some devices run a little dimmer. The Jackery 2000 V2 is close behind at 2,200W with no boost option. The S2000 is the smallest at 1,500W — but the reviewer's question cuts through the spec sheet: do you actually need a bigger inverter?

His reference point is a normal wall outlet, which is rated to 15 amps / 1,800W (with a 20-amp breaker in the panel). If your critical loads — a refrigerator, a freezer, a modem — sit comfortably under that, then a 2,400W inverter is capacity you pay for but never use. The S2000's 1,500W is plenty for a fridge and essentials, and its smaller engine is precisely why it runs more efficiently, as the next section shows. The takeaway: match inverter size to your load list, not to the biggest number on the box.

Battery Capacity and Real-World Runtime

On paper, the three batteries are nearly identical: the Delta 3 Max at roughly 2,480Wh, the Jackery at 2,420Wh, and the S2000 at 2,100Wh — the smallest battery in the group. All three use lithium iron phosphate (LiFePO4) cells. What the reviewer found when he actually ran a refrigerator off each one breaks the spec-sheet expectation: the S2000 ran his fridge for 19 hours 20 minutes, the Jackery for 17 hours 25 minutes, and the Delta 3 Max for 16 hours 55 minutes. The unit with the smallest battery lasted longest.

Two reasons explain the result, and both are worth understanding before you buy. First, the S2000's inverter measured 96% efficiency — the highest the reviewer has ever recorded in ten years of testing — against 92% for the Delta 3 Max and 90% for the Jackery. Second, the S2000 idles at just 4W when nothing is plugged in, while the other two draw 17W and 21W. Over a 19-hour fridge run, those differences add up to a big slice of a 2kWh pack. It is the clearest demonstration in the video that efficiency is a spec you should read as carefully as capacity.

Efficiency and Idle Draw: Why the Smallest Battery Lasted Longest

The efficiency gap deserves its own section because it is the hidden variable in every power station comparison. A unit that is 6 points more efficient (96% vs 90%) wastes less of every watt-hour as heat, which means more of the battery's energy actually reaches your appliances. Add a low idle draw — the S2000's 4W vs 17–21W on the others — and a station left running around the clock with nothing plugged in can burn a meaningful share of its own battery in a day. For a backup unit that sits on a shelf most of the time, idle draw is not trivia: it is the number that decides whether the battery is still full when the power goes out.

There is also a battery-life footnote. Anker rates the S2000 at 10,000 cycles while the others are rated at 4,000 — but the reviewer flags the basis as slightly different: Anker's figure assumes 60% usable capacity per cycle, while the others are rated at 80%. In practice, he concludes, the usable lifetime of the packs is comparable; the headline cycle number is more marketing than physics. When you compare any two LiFePO4 batteries, ask for the same cycle definition — depth of discharge changes the number more than the cells do.

Charging: Wall, Solar and Car

Since none of these three units accepts expansion batteries — a gap the reviewer calls a real mistake across the board — fast recharging is the compensating feature. From the wall, the Delta 3 Max and the Jackery both charge at up to 1,800W (15 amps from a standard outlet). The S2000 defaults to roughly 1,100–1,200W but has a boost mode in the app that raises it to 1,600W. Car charging is technically possible on all three through a cigarette-lighter port with the right DC or solar connector, but the reviewer notes few people actually use it — the practical daily paths are wall charging and solar.

Solar is where the units diverge most. All three charge controllers accept up to 60V, which means their own folding panels or a good 200W rigid panel work well with all of them. But the Delta 3 Max takes 500W of solar input while the other two cap at 400W — a 20% difference. With the US average of about five solar peak hours a day, the 400W units can produce roughly 2,000Wh of capacity per day, while the Delta 3 Max can reach about 2,500Wh. The practical rule the reviewer draws from this: if you drain the unit overnight and need it full by the next evening, a 500W-capable unit buys you a comfortable margin.

Price and Bang for the Buck

Prices move constantly, but at filming the numbers were: $800 for the Delta 3 Max, $900 for the Jackery 2000 V2, and $600 for the Anker SOLIX S2000. By raw price, the S2000 is the cheapest — and by the reviewer's "whole watt" measure (factoring inverter, battery and solar input), it also comes in best at $0.73 per whole watt, against $0.77 for the Delta 3 Max and $1.30 for the Jackery. The Jackery is the priciest per unit of capability, though its built-in light and its brand ecosystem are part of what that price buys.

"Bang for the buck" should not be read as "buy the cheapest thing". It means: for what you pay, what do you get in usable capability? The S2000 wins that ratio, the Delta 3 Max is close and adds inverter headroom, and the Jackery is the premium-price option whose value depends on its light and ecosystem fit. If you are comparing at a budget level, the same per-wh math is how we recommend evaluating any portable power station — divide the price by usable watt-hours, then apply your own weight to efficiency and solar input.

App Features and Output Memory (Dark Start)

Two software features separate the units in daily use. The Wi-Fi app: the Jackery's app is simple and clean but lacks input/output tracking, while the S2000 and Delta 3 Max both track how much energy came in (from solar or wall) and how much went out — a running history the reviewer says he uses constantly to understand his system. The second feature is output memory, or "dark start": if the unit runs flat overnight (say 4 a.m.), then solar refills it during the morning, and once it passes roughly 10% charge it automatically turns the outlets back on — resuming the fridge, Wi-Fi and whatever else was running without anyone touching it. Dark start is still uncommon in most units, and it is one of the features the reviewer prizes most for unattended backup.

For an emergency-backup purchase, software is not a vanity feature. Input/output tracking tells you whether your solar is sized right, and dark start is the difference between a blackout that ends by itself and one that needs you awake at noon. The same logic applies to larger home storage systems: monitoring and automation are part of the product, not an afterthought.

Which One Should You Choose?

The reviewer's personal verdict, with the caveat that it depends on your situation: for bare-essential backup — a refrigerator, a freezer, a Wi-Fi modem — he picks the Anker SOLIX S2000. The reasons are the ones this guide has traced: it is the most affordable, its 1,500W inverter is enough for essentials, it carries essentially the same battery capacity as the larger units, and it is dramatically more compact — easy to tuck into a corner with all the daily-use ports on the front and only the wall-charging port on the back. If he needed to run a bigger continuous load, or wanted inverter headroom for tools and appliances, the Delta 3 Max's 2,400W (3,400W boosted) would be the pick. The Jackery's case rests on its light and its ecosystem — real but narrower advantages at its price point.

None of these three can run a whole house — the reviewer is explicit about that — and none accepts expansion batteries, which is his main criticism of the entire category. If your need is a 12-hour blackout, a camping trip or an off-grid cabin, any of the three will serve; the S2000 just serves it with the least money and space. If your need is larger, the honest step up is a modular home battery that can grow with you — which is the size class we build, with the same LiFePO4 chemistry these stations use, plus the expansion ports the 2kWh category lacks.

Dajiu Energy is a Chinese manufacturer building LiFePO4 batteries for RVs, homes, golf carts and portable applications since 2017. Our product range covers LiFePO4 drop-in replacement batteries, EV and golf cart batteries, wall-mounted home storage, portable power stations, commercial energy storage and battery swap cabinets — explore the full lineup in our product center, or browse more buying guides. Tell us your voltage, capacity and size, and we'll engineer the pack to hit it.

What Viewers Are Asking (Top Comments on the Video)

@earthoid · 198 likes
"I just bought an Anker C2000 Gen 2 for my first power station. It ran my big refrigerator and a small freezer together for 13 hours 15 minutes. Next up is to add solar charging."
Our take: A real-world runtime report that mirrors the video's own testing: a fridge plus a small freezer ran over 13 hours from a 2kWh-class pack. That is a realistic essential-load scenario for an overnight outage. Adding solar next is the right move — with 400W of input and five peak hours, the unit can refill itself in a day. For the same job, our portable power stations are built around the same LiFePO4 chemistry and solar input sizing.
@d1v1s1onby0 · 156 likes
"What if you could only pick one? - Mate - out in the real world, normal people HAVE to only pick one"
Our take: The comment cuts to the point of the whole video: for most buyers this is a one-unit decision, not a fleet. That is why the reviewer's method — testing runtime, efficiency and price on real units — matters more than marketing spec sheets. Our advice for the single-unit buyer: list your three or four must-run loads, add up their wattage and the hours you need them, and buy the unit whose usable watt-hours cover that with a margin. That calculation decides the size better than any brand comparison alone.
@PlansGoneAwry · 105 likes
"I chose the Ecoflow ecosystem. Have Delta 3 plus and a Smart Generator 3000 running a remote cabin. If/when the Delta 3 plus battery hits 30% it communicates with the Smart Generator 3000 to self start and recharge the Delta 3 plus. It's nice having the generator to back up solar if the weather isn't cooperating"
Our take: A smart hybrid setup: the power station manages a generator that auto-starts when the battery crosses a threshold — solar by default, generator as weather backup. That kind of ecosystem coordination is a genuine advantage of staying inside one brand family, and it is the same reason we point customers toward matched battery + inverter + charger systems: when all three communicate, the system runs itself. If you plan to pair a generator later, check that the station supports generator auto-start before you buy.
@oneonly-r2h · 46 likes
"Honestly, the DELTA 3 Max caught my attention here. 2400W output + 2048Wh capacity is a really practical combo for home backup and camping. The fast recharge is a huge plus too"
Our take: The Delta 3 Max's pitch in one comment: enough inverter for most appliances, enough battery for a night, and wall recharge at 1,800W. The 2,400W inverter is the differentiator if you want to run a bigger appliance or tools — that is capacity the 1,500W S2000 does not offer. The trade-off is size and idle draw. If a single appliance in your list sits between 1,500W and 2,400W, the Delta 3 Max is the right answer; otherwise the efficiency math favors the smaller unit.
@laurenbroido9 · 42 likes
"EcoFlow Delta Pro 3 will run my refrigerator, water pump, some lights, modem, two dehumidifiers, etc. for about eleven hours without sun. Longer if there is sun during the day. I only have 420 watt portable panel but it works quite well."
Our take: A bigger-capacity neighbor of the units in the video: the Delta Pro 3 runs a water pump and dehumidifiers — loads that pull far more than the 2kWh class can carry. Two lessons here. First, list your loads honestly: a water pump changes the size class entirely. Second, the 420W panel refilling it "quite well" confirms the solar sizing rule from the video — you do not need to match panel wattage to battery capacity, only to your daily draw. For larger loads, our wall-mounted home storage is the size class that fits.
@danielbast352 · 38 likes
"I'm on my 4th jackery…… 3 , 2000 plus with a few extra battery packs, plus a 300. Can't complain they all work fine. I use hard panels. I only paid 800 for the 2000 plus. Can't imagine why I would use the app. Also I've two 400 watt panels permanently attached to each and they've never ever seen 75 percent. The first one I bought has been running four years straight."
Our take: A long-term Jackery owner with real data: four years of continuous service on the first unit, and 800W of panels per unit that never sees 75% of rated output in practice. Both details are worth keeping. First, real-world solar rarely hits nameplate — panel angle, temperature and cloud cover cost 25–30% — which is why oversizing your array by a third is a sensible rule. Second, the "never used the app" note is the flip side of the video's praise for input tracking: some owners simply do not want the software. Both are valid; just know which kind of owner you are before paying for app features.
@IPoWeRzZz · 37 likes
"At this point, there's really no need to keep comparing the S2000 to anything else. In the 2kWh category, it's the lowest-priced and most efficient option you'll find. At this price point, nothing else gives you more capacity. And if you grab four, you'll unlock a bundle discount. The value just speaks for itself."
Our take: A strong vote for the S2000's value position, echoing the reviewer's own conclusion. The one caution we would add: "most efficient" and "lowest priced" are measured against the 2kWh class, and buying four units for more capacity is a workaround — four boxes cost more per watt-hour than one bigger system and still cannot share loads. If your true need is 4kWh, a single expandable home battery is usually the better economics. But for one-person backup, the comment's logic holds.
@flatheadfletch · 36 likes
"I've had my Anker 5 years. I live in a tiny home and in Alabama we have power outages regularly, lots of Storms. Love the weather and my Anker solar Generator. I have the solar panel kit for it. 5 years without an issue. I also use it camping. Great product. Don't hesitate to own one. My 1000 will last 2.5 days without charging. I do however use solar panel everyday power is out simply because it last longer this way. Solix 1000 by Anker has a built in led light with 3 brightness settings. It's smaller than these in the video but has been more than enough with Anker Solar panel which makes it highly versatile!"
Our take: Five years of storm-season service on an Anker unit, used for both outage backup and camping — a long-term reliability data point the short review videos cannot provide. The habits are textbook: solar every day it is out (extending runtime), and matching the panel kit to the unit. The built-in light with brightness settings is exactly the feature the video credits the Jackery for — proof that feature parity is spreading across brands. Longevity like this is the standard we design our LiFePO4 packs to: years of daily cycling, not seasons.
@roypublic3269 · 35 likes
"I bought the Jackery with two 200W panels. I have five generators with the ability to solar charge, gas and Propane charge capability. Whatever the situation, I'm covered."
Our take: A "whatever the situation" setup: multiple units with overlapping fuel paths — solar, gas and propane — so any single failure mode leaves capacity standing. That redundancy strategy is sound for serious outage preparedness, and it is worth copying at your own scale: one solar-capable unit plus one fuel-capable backup covers both long outages and bad-weather stretches. The 2×200W panels on the Jackery confirm that a 400W input pairing is plenty for daily refill of a 2kWh pack.
@amydiane21 · 28 likes
"I have the Anker C2000 Gen 2. It does have battery expansion, and I do use it daily in my SUV life, and primary charging is the car charging. Great upgrades from Gen 1. I paid $700 on sale. I love it. I can go a full day running my 12V fridge/freezer, my fan, charging my phone and tablet, and power-hungry computer for CAD and 3D renderings, plus cooking once a day on my induction cooktop. Then, I'm just off to my next destination and run again."
Our take: An SUV daily-driver use case that is heavier than the video's outage framing: a fridge, an induction cooktop and a CAD laptop run for a full day, recharged primarily by car. Two useful data points: battery expansion exists on some Anker models (the video notes these three specific units lack it), and car-charging as the primary path works when you drive daily. If your lifestyle is vehicle-based like this, prioritize units with expansion capability and a solid car-charging rating — the same criteria we apply when recommending portable systems to mobile customers.

Source video: Minute Man Solar — "EcoFlow vs Jackery vs Anker SOLIX Top Pick" (youtube.com/watch?v=rDXXWiLGl-4). Comment excerpts are quoted verbatim from the video's top comments; answers are Dajiu Energy's own. Test figures, prices and specifications are transcribed from the video as of filming and may change with sales.