Specifications checked against manufacturer pages between 2026-08-23 and 2026-09-12.
Off-grid is the one use where the unit you buy today is not the system you end up with. What matters is the ceiling: how far one unit expands with the maker’s own batteries, how much solar it will accept, and how many cycles the cells are rated for. This page ranks our spec-verified units by the expansion ceiling a single unit reaches.
Our picks. Anker SOLIX F3800, Jackery HomePower 3600 Plus, EcoFlow DELTA Pro 3. They are ordered by one measure and nothing else: We rank by how far one unit expands with the manufacturer’s own expansion batteries, using the single-unit figure and never a multi-unit system total. Nothing below is estimated: the figures were read off the makers’ pages between 2026-08-23 and 2026-09-12.
How we ranked them
We rank by how far one unit expands with the manufacturer’s own expansion batteries, using the single-unit figure and never a multi-unit system total. Where a maker advertises a larger number that needs two or more units wired together, we use the single-unit figure instead, because that is the box you are buying.
The point of naming the measure is that you can reject it. The table keeps every raw figure, so a reader who cares about a different column can rank on that one instead. No unit paid for its place.
One thing the phrase “solar generator” hides: every price below is for the power station alone. Solar panels are sold separately, and a panel kit often costs as much again as the unit. We link the bare unit because that is the product whose specifications we transcribed; budget for panels on top.
1. Anker SOLIX F3800
3,840 Wh · 6,000 W continuous · 132.3 lb · $2,199.99 list when checked
Why it places 1st. Single-unit expansion ceiling of up to 26,880 Wh, the highest of the units we have verified. That is 28% more than HomePower 3600 Plus just below it (21,000 Wh). Its stated 9,000 W surge covers the roughly 900 W a full-size refrigerator draws to start.
Anker SOLIX publishes a limit alongside that unit’s figures — on its continuous output, “the 240V output cannot be used while the device is charging via 120V AC”. A number without the limit its maker put on it is not the whole number, so we carry it here rather than in a footnote.
It accepts up to 2,400 W of solar and the cells are rated for 3,000 cycles, or about 58 years at one full cycle a week. Anker SOLIX does not state the capacity level that rating is measured to, which the other units on this page do state.
Put against household loads it calculates to 2.1–2.5 days on a 150 W full-size refrigerator and calculates to 2.8–3.3 days on a 40 W CPAP without humidifier — arithmetic on the rated capacity, not a bench result.
For a different load off the same battery — a router and modem, 20 W — the same arithmetic calculates to 5.6–6.6 days.
What Anker SOLIX omits for this unit: the remaining-capacity level its cycle rating refers to, operating noise and a full wall-charge time. An empty row is more useful than a guess.
2. Jackery HomePower 3600 Plus
3,584 Wh · 3,600 W continuous · 77.16 lb · $1,899 list when checked
Why it places 2nd. Single-unit expansion ceiling of 21,000 Wh, 2nd highest of the units we have verified. That is 75% more than DELTA Pro 3 just below it (12,000 Wh). Its stated 7,200 W surge covers the roughly 900 W a full-size refrigerator draws to start.
It accepts up to 1,000 W of solar and the cells are rated for 6,000 cycles to 70%+, which at one full cycle a week is about 115 years before that threshold.
Put against household loads it calculates to 2.0–2.3 days on a 150 W full-size refrigerator and calculates to 2.6–3.1 days on a 40 W CPAP without humidifier — arithmetic on the rated capacity, not a bench result.
For a different load off the same battery — a router and modem, 20 W — the same arithmetic calculates to 5.2–6.1 days.
What Jackery omits for this unit: maximum AC charging input and whether the unit has app control. An empty row is more useful than a guess.
3. EcoFlow DELTA Pro 3
4,096 Wh · 4,000 W continuous · 113.54 lb · $3,699 list when checked
Why it places 3rd. Single-unit expansion ceiling of up to 12,000 Wh, 3rd highest of the units we have verified. It is level with HomePower 2000 Plus v2 on this measure (12,000 Wh); the tie is broken by the figures in the table. Its stated 8,000 W surge covers the roughly 900 W a full-size refrigerator draws to start.
It accepts up to 2,600 W of solar and the cells are rated for 4,000 cycles to 80%, which at one full cycle a week is about 77 years before that threshold.
Two reference loads, both calculated: a 150 W full-size refrigerator calculates to 2.3–2.7 days, a 40 W CPAP without humidifier calculates to 3.0–3.5 days.
Take one more load buyers ask about, a router and modem (20 W): it calculates to 6.0–7.0 days.
EcoFlow does not publish a full wall-charge time for this unit, so that row stays empty rather than filled with someone’s estimate.
4. Jackery HomePower 2000 Plus v2
2,048 Wh · 2,400 W continuous · 41.45 lb · $1,199 list when checked
Why it places 4th. Single-unit expansion ceiling of 12,000 Wh, 4th highest of the units we have verified. That is 9% more than HomePower 1000 Plus v2 just below it (11,000 Wh). Its stated 4,800 W surge covers the roughly 900 W a full-size refrigerator draws to start.
It accepts up to 800 W of solar and the cells are rated for 6,000 cycles to 70%+, which at one full cycle a week is about 115 years before that threshold.
On our assumptions a 150 W full-size refrigerator calculates to 31–34 hr and a 40 W CPAP without humidifier calculates to 36–42 hr. Both are calculated from the rated capacity, not measured.
On a second load many buyers run at the same time, a router and modem (20 W), it calculates to 3.0–3.5 days.
Maximum AC charging input, a full wall-charge time and UPS switchover time go unstated by Jackery here. We leave the gap visible instead of quietly closing it.
5. Jackery HomePower 1000 Plus v2
1,024 Wh · 1,800 W continuous · 23.8 lb · $749 list when checked
Why it places 5th. Single-unit expansion ceiling of up to 11,000 Wh, 5th highest of the units we have verified. That is 8% less than HomePower 2000 Plus v2 above it (12,000 Wh). Its stated 3,600 W surge covers the roughly 900 W a full-size refrigerator draws to start.
It accepts up to 400 W of solar and the cells are rated for 6,000 cycles to 70%+, which at one full cycle a week is about 115 years before that threshold.
Two reference loads, both calculated: a 150 W full-size refrigerator calculates to 16–17 hr, a 40 W CPAP without humidifier calculates to 18–21 hr.
Take one more load buyers ask about, a router and modem (20 W): it calculates to 36–42 hr.
The five side by side
| Unit | Single-unit expansion ceiling | Rated capacity | Continuous | Weight | List price |
|---|---|---|---|---|---|
| 1. Anker SOLIX F3800 | up to 26,880 Wh | 3,840 Wh | 6,000 W | 132.3 lb | $2,199.99 |
| 2. Jackery HomePower 3600 Plus | 21,000 Wh | 3,584 Wh | 3,600 W | 77.16 lb | $1,899 |
| 3. EcoFlow DELTA Pro 3 | up to 12,000 Wh | 4,096 Wh | 4,000 W | 113.54 lb | $3,699 |
| 4. Jackery HomePower 2000 Plus v2 | 12,000 Wh | 2,048 Wh | 2,400 W | 41.45 lb | $1,199 |
| 5. Jackery HomePower 1000 Plus v2 | up to 11,000 Wh | 1,024 Wh | 1,800 W | 23.8 lb | $749 |
We keep the table plain and unlinked so it can be checked at a glance. Every price is a manufacturer list figure recorded on the date given above.
Across the 27 units we have both transcribed and can link, the top five run from 26,880 Wh down to 11,000 Wh — a 59% spread on the measure this page ranks. The spread is wide enough that the order matters more than the usual tie-breakers. Every other figure in the table moves independently of that one, which is why the table carries them.
What would change this ranking
Expansion ceilings move when a maker releases a new battery for an existing unit, which happens more often than a new power station does. A unit that publishes no ceiling today may enter this list later without changing at all, simply by stating a figure. Our assumptions are printed above so you can substitute your own. If you change the appliance wattage or the duty cycle, the order can change with it.
Because the ranking is computed from the ledger rather than written by hand, a revision to F3800’s specifications reorders this list automatically.
What we did not pick
A list that only shows winners hides how the winners were chosen.
- Not expandable, and the makers say so. Anker SOLIX C1000 Gen 2, Anker SOLIX C300, Bluetti AC180, Bluetti Elite 100 V2, Bluetti Elite 200 V2, Bluetti Elite 30 V2, Jackery Explorer 1000 v2, Jackery Explorer 2000 v2. This is a published answer rather than a gap in our data. For off-grid use that answer is the point: these units are the whole system, so what you buy is what you keep.
- Expansion stated, but another axis is not. Jackery HomePower 3600 Pro Max. These units publish an expansion ceiling, yet their makers do not state maximum solar input. The ranking itself uses one measure, but it requires all three to be published before a unit can be scored, so we set them aside rather than rank them on a partial record.
- Expandability unstated. EcoFlow RIVER 2, EcoFlow RIVER 2 Pro, EcoFlow RIVER 3. Their makers do not say whether these units expand, so we cannot rank them on this page and will not guess in either direction.
- Published only as a multi-unit total. Bluetti Apex 300, Jackery Explorer 2000 Plus. The only expansion figure these makers publish needs more than one unit wired together, and we do not rank a single box on a number that describes a system.
- EcoFlow DELTA Pro, Bluetti AC200L, EcoFlow DELTA 3 Plus, EcoFlow DELTA 3, Anker SOLIX C2000 Gen 2, EcoFlow DELTA 2, Anker SOLIX C1000, EcoFlow RIVER 3 Plus — ranked below the top 5 on single-unit expansion ceiling.
That is 22 units set aside against 5 ranked above, out of the 27 we can both link directly and check against the maker’s own page. A unit we cannot do both for never reaches this page at all, which is why the total here is smaller than the market.
Units that publish no expansion ceiling are absent from this list. That is not a mark against them as power stations; it means they cannot be ranked on the measure this page is about.
Questions people ask
Every answer below is drawn from the table above.
How did you rank these?
With a single calculation: We rank by how far one unit expands with the manufacturer’s own expansion batteries, using the single-unit figure and never a multi-unit system total. No judgement is layered on top, and every input is printed in the table.
Does the price cover panels as well?
It does not. The figures are for the station alone; panels add a second purchase that can approach the price of the unit.
How long will the F3800 run a refrigerator?
A typical full-size refrigerator calculates to 2.1–2.5 days on our assumptions: 150 W running, a 35% duty cycle, and an assumed conversion efficiency. Your own compliance label is the number that matters.
Did you test any of these?
No. This site transcribes manufacturer figures and does arithmetic on them. We own no test bench and do not pretend otherwise.
What stops a unit from appearing?
A model appears only if both are true: we hold its figures from the maker’s own page, and we can point a link at that exact product rather than something close to it.
What does “single-unit expansion ceiling” mean here?
We rank by how far one unit expands with the manufacturer’s own expansion batteries, using the single-unit figure and never a multi-unit system total. It is the only measure that sets the order on this page.
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Sources and method
Figures are the manufacturers’ own, transcribed between 2026-08-23 and 2026-09-12, each kept beside the sentence that carried it. Anything described as a runtime is CalmWatt arithmetic on the rated capacity, not a bench result. Method: How we verify. Per-unit detail: Comparisons.