Jackery vs EcoFlow: Spec-by-Spec at Three Capacity Classes

By SteadyWatts · Published 9 September 2026 · Updated 17 September 2026 · Specs from manufacturer listings; every price re-checked on Amazon 17 September 2026

Jackery vs EcoFlow is the comparison most backup-power shoppers land on, because the two brands sit side by side at every price point and their marketing sounds identical. This page settles it the way we settle everything here: with published specifications, arithmetic you can check, and prices with a date attached. No hands-on testing, no adjectives standing in for numbers.

We compare three matched pairs — one from each brand at the same capacity class — because comparing a $559 Jackery to a $3,699 EcoFlow tells you nothing. The three classes are the ones people actually shop: the 1 kWh portable, the 2 kWh expandable, and the whole-home tier. Every pair gets a spec table, a price-per-watt-hour figure, and the fridge runtime math worked out in the open.

Round 1 — the 1 kWh class: Jackery Explorer 1000 v2 vs EcoFlow Delta 3 Classic

This is the class most households should be shopping. A 1 kWh unit is the smallest size that meaningfully protects a refrigerator, and both of these are current-generation LiFePO4 models.

The arithmetic: on 17 September 2026 both units list at $559. $559 ÷ 1,070 Wh = $0.522/Wh. $559 ÷ 1,024 Wh = $0.546/Wh. The Jackery is ahead by 4.6% per stored watt-hour — which, at an identical sticker price, means you are simply getting 46 Wh more energy for the same money.

What the EcoFlow gives you for that same $559: 300 W more continuous output, 600 W more surge headroom, a switchover time half as long, and a faster wall recharge, against 46 Wh less capacity. At equal prices that is a genuinely close call and it tips on your load list rather than the brand — a sizing question, which our power station sizing guide answers in about ten minutes. Caution: these two were $499 and $699 eight days before this check. Confirm both prices yourself; if they have separated again, the cheaper one per watt-hour wins, because on specs neither is far enough ahead to pay a premium for.

Where the extra surge actually matters: a refrigerator compressor typically spikes 700–1,200 W on startup. Both units clear that with room to spare, so for a fridge the Delta 3 Classic's higher surge is headroom you paid for and won't use. It starts to matter if your list includes a microwave, a table saw, or a well pump — loads that can spike past 3,000 W.

Where the switchover matters: 20 ms versus under 10 ms is invisible for a fridge, a lamp or a phone charger. It is not invisible for a desktop PC, a game console, or a network rack, some of which will reboot on a 20 ms gap. If that is your use case, the Delta 3 Classic is buying you something specific. Note also that Jackery's own HomePower 1000 line publishes 10 ms — so this is a model difference, not a brand difference.

Jackery Explorer 1000 v2 price → EcoFlow Delta 3 Classic price →

Round 2 — the 2 kWh expandable class: Jackery HomePower 2000 Plus v2 vs EcoFlow Delta 3 Max

At this size the products stop being "big power banks" and start being home-backup systems: both units in this pair are designed to take add-on batteries and both are rated to run a fridge for well over a day.

These two are the closest match on this page — identical 2,048 Wh capacity and identical 2,400 W continuous output. When two products agree on the two headline numbers, everything is decided by the remaining lines.

The arithmetic: $1,071 ÷ 2,048 Wh = $0.523/Wh. $1,199 ÷ 2,048 Wh = $0.585/Wh. A 12% premium for the EcoFlow at identical capacity. This pair has been the most stable on the site — both prices moved less than $3 between our 9 and 17 September checks, while three other models on this page swung by hundreds.

The genuine split here is cycle life versus boost output. Jackery publishes 6,000+ cycles on this model; EcoFlow does not quantify cycle life on the Delta 3 Max listing. If you plan to cycle the unit daily — solar self-consumption, RV living, time-of-use arbitrage — published cycle count is the number that decides the cost per kWh delivered over the product's life, and Jackery is the only one of the two putting a figure on it. If instead the unit sits charged and waits for outages, you will never approach either cycle limit, and the Delta 3 Max's 3,400 W X-Boost mode is the more useful spec, because it is what lets a 2,400 W unit start a load that briefly wants more.

Jackery HomePower 2000 Plus v2 price → EcoFlow Delta 3 Max price →

Round 3 — the whole-home class: Jackery HomePower 3600 Plus vs EcoFlow Delta Pro 3

This is the tier where a power station stops competing with an extension cord and starts competing with a standby generator. Both units support 240 V, both scale past 20 kWh with add-on batteries, and both cost more than most people expect.

The arithmetic: $1,709 ÷ 3,584 Wh = $0.477/Wh. $3,699 ÷ 4,096 Wh = $0.903/Wh. The EcoFlow carries 512 Wh more energy and 400 W more continuous output, and costs $1,990 more — an 89% premium per watt-hour. The Delta Pro 3 was $2,799 on 9 September; that promotion has ended and it is back at full list, which turns what was a defensible premium into the widest gap on this page.

The case for paying it is native 120/240 V from a single unit and a 48 kWh expansion ceiling. The Jackery reaches 240 V by pairing two units, which means a second purchase; if 240 V is a hard requirement — a well pump, a dryer, a central AC — read both spec sheets against your actual panel before choosing, because "supports 240 V" means different things across these two products.

The case against is that $1,990 buys an entire second HomePower 3600 Plus with $280 left over: two Jackerys in parallel deliver 7,168 Wh and 7,200 W for $3,418 — 75% more energy and 80% more output than one Delta Pro 3 at $3,699, and still $281 cheaper, at $0.48/Wh. Whether that arrangement suits you is an installation question, not a spec question, and it is worth asking an electrician before spending at this tier.

Jackery HomePower 3600 Plus price → EcoFlow Delta Pro 3 price →

Jackery vs EcoFlow fridge runtime — the math for all six units

Capacity alone does not tell you runtime, because inverting DC to AC costs about 15% and because a refrigerator does not run continuously. Here is the same formula we use everywhere on this site, applied to every unit above:

Worked example, one row in full: the Explorer 1000 v2 is rated 1,070 Wh. Multiply by 0.85 for inverter losses: 1,070 × 0.85 = 909.5 Wh usable. Divide by the fridge's average hourly draw: 909.5 ÷ 52.5 = 17.3 hours. Every other row is the same two operations.

What this table shows about the brand question: at 1 kWh the Jackery runs the fridge 42 minutes longer because it holds 46 Wh more — a difference no one will notice. At 2 kWh the two are identical to the minute. Only at the top tier does capacity separate them, and there the EcoFlow's extra 8.3 hours costs $1,990. Runtime, in other words, is bought with capacity, and capacity is bought with money — which is why $ per watt-hour is the number that actually decides these matchups, and why we put it in every table.

Two caveats the arithmetic can't cover. First, this is fridge-only runtime; add a router, lamps and phone charging and you are near 82 Wh/h, which cuts every figure above by about a third — the full worked example is in our sizing guide. Second, runtime says nothing about whether the unit can start your loads: check that the surge rating clears your compressor's 700–1,200 W startup spike, separately from the runtime question.

Jackery vs EcoFlow — the brand-level differences that survive the spec sheet

• EcoFlow publishes faster numbers; Jackery publishes cheaper ones. Across all three pairs, EcoFlow leads on continuous output, boost output, and recharge speed, and Jackery leads on price per watt-hour. That pattern held in every matchup we checked, which makes it a positioning difference rather than a coincidence.
• Jackery quantifies cycle life; EcoFlow often doesn't. Jackery listed 4,000 cycles on the Explorer 1000 v2 and 6,000 on both HomePower models. EcoFlow's listings describe LiFePO4 durability in years of "daily use" without a cycle count. For an outage-only unit this is immaterial. For daily cycling it is the single most important economic spec, and only one brand is giving you the number.
• Switchover time is a model spec, not a brand spec. EcoFlow publishes <10 ms across the Delta 3 line. Jackery publishes 20 ms on the Explorer 1000 v2 but 10 ms on its HomePower models. Comparing the brands on this number will mislead you; compare the two specific models you are choosing between.
• Both are LiFePO4 throughout. Neither brand's current generation ships the older NMC chemistry, so the longevity and thermal arguments that dominated 2022-era comparisons no longer separate them.
• Prices move violently, in both directions. Between our August and September checks the Delta 3 Classic went from $499 to $699, the Delta 3 Max from $899 to $1,199, and the Jackery Explorer 2000 Plus from $899 to $2,599 — while the HomePower 3600 Plus fell from $1,899 to $1,709. Any "vs" article without a date on its prices, including an older version of ours, is telling you about a market that no longer exists.

Which should you buy?

Decide the capacity class first — that decision moves your outcome far more than the badge does. Then, within the class:

• Buy the Jackery if stored energy per dollar is your binding constraint, if you intend to cycle the unit regularly and want a published cycle count, or if you are at the 1 kWh or whole-home tier, where the price-per-watt-hour gap was 43–46% at our September check.
• Buy the EcoFlow if your load list has spikes that need 3,400–6,000 W of boost, if you are backing up equipment that cannot tolerate a 20 ms interruption, if fast recharge between rolling outages matters more than tank size, or if you need native 120/240 V from a single box.
• Buy whichever is discounted at the 2 kWh class. A 12% gap between two units with identical capacity and identical output is inside the range these brands routinely promote away, and the specs are close enough that the price on the day is the honest tiebreak.

If you have not settled the class yet, do that before you shop the brand: our sizing guide gets you there with a load list and the formula above. If your outage plan is apartment-scale, the indoor backup power guide covers why fuel-burning generators are off the table indoors. And if you want to keep any of these units running past their stated runtime, that is a portable solar panel question. Cross-shopping a third brand is worth doing too — our Bluetti vs EcoFlow comparison runs the same tables, and Bluetti's Elite 300 posted the best price per watt-hour of anything we have measured.