EcoFlow

⚠ Note: Inverter-only base unit with no built-in battery. Requires at least 2 batteries connected to output full 12Kw/240V. Only 6Kw output if with 1 battery. Supports up to 10 stackable 6144Wh batteries for 61.44kWh total. Outside-source notes: early coverage and owner discussion frame Ultra X as a true whole-home platform rather than a portable power station, with strong capability but premium-system expectations around installation, scaling, and cost. Added V3.1: idle power, noise, and support quality from aggregated review consensus.

⚠ Note: Inverter-only base unit with no built-in battery. Requires at least 1 DELTA Pro Ultra battery to run the full 7.2kW 120/240V output. Supports up to 5 stackable 6kWh batteries for 30kWh total. EcoFlow markets DELTA Pro Ultra as UL 9540 certified; the product page also states it is certified to both UL1973 and UL9540. It is usually sold in a startup kit with one battery and a dolly. Outside-source notes: outside testing describes the Ultra as quiet, cool-running, and highly capable under heavy load, reinforcing its positioning as a serious home-energy platform rather than a conventional portable station. Added V3.1: idle power, noise, and support quality from aggregated review consensus.

⚠ Note: U.S. manual/product docs indicate 4× NEMA 5-20, 1× TT-30, 1× NEMA 14-30 (locking L14-30 treated as 14-30 in this dataset), and 1× NEMA 6-20. Built-in dolly. Regular 120V AC charging is 1800W (~3h full charge). 240V charging up to 4000W via EcoFlow 5P8 adapter. 120V charging while outputting 240V is supported. Outside-source notes: review coverage highlights strong usability and improved whole-home readiness, while community commentary flags the 30V PV-start threshold as a meaningful downside for some small-array or vanlife-style scenarios. Added V3.1: idle power, noise, and support quality from aggregated review consensus.

⚠ Note: Official product-page/spec text and imagery support a U.S. front panel with 4× NEMA 5-20 outlets, 1× TT-30 outlet, no NEMA 5-15 outlets, and integrated wheels with an extendable handle. DELTA Pro remains a 120V-output unit on a single chassis; 240V requires ecosystem accessories such as the Double Voltage Hub and a second DELTA Pro. Outside-source notes: reviewer comparisons still respect DELTA Pro's output and ecosystem depth, but consistently point to its size/weight and the need for accessories or dual-unit setups for some 240V use cases. Added V3.1: idle power, noise, and support quality from aggregated review consensus.

⚠ Note: Official DELTA 3 Ultra specs list 3072Wh capacity, 3600W AC output (surge 7200W), X-Boost 4600W, four 20A AC outlets plus one 30A outlet, 1×18W USB-A, 1×140W USB-C plus 2×45W USB-C, 126W cigarette port, 1800W AC charging, 800W PV input, and <10ms UPS. It is the fixed-capacity 3kWh member of the Ultra pair without the Plus model’s smart-output and higher-input expansions.

⚠ Note: Official DELTA 3 Ultra Plus specs list 3072Wh capacity, 3600W AC output (surge 7200W), X-Boost 4600W, four 20A AC outlets plus one 30A outlet, 1×18W USB-A, 1×140W USB-C plus 2×45W USB-C, 378W 12V DC with Anderson output, 126W cigarette port, 1800W AC charging, 1600W PV input, and <10ms UPS. EcoFlow’s official FAQ further distinguishes Ultra Plus with 11 outlets, Smart Output Priority, and Smart Generator 4000 auto start/stop.

⚠ Note: Official DELTA 3 Max Plus specs list 2048Wh capacity, 3000W AC output (surge 6000W), X-Boost 3800W, four 20A AC outlets, 1×18W USB-A, 1×140W USB-C plus 2×45W USB-C, 378W 12V DC with Anderson output, 126W cigarette port, 1800W AC charging, 1000W PV input, <10ms UPS, and expandable 2–10kWh configurations when paired with DELTA 3 Max Plus or DELTA Pro 3 extra batteries via the EcoFlow expansion adapter.

⚠ Note: Official EcoFlow US page shows six AC outlets and app-managed energy features. The manual and page do not provide a text-confirmed U.S. NEMA subtype for the six general-purpose AC sockets. Outside-source notes: multiple reviews describe DELTA 2 Max as surprisingly quiet and very efficient for its size, with strong real-world usability and better long-term value than many newer mid-capacity competitors. Added V3.1: idle power, noise, and support quality from aggregated review consensus.

⚠ Note: Official DELTA 3 Max series specs list 2048Wh capacity, 2400W AC output, X-Boost to 3400W, four 20A AC outlets, one 18W USB-A, three USB-C outputs (1×100W + 2×30W), 126W car socket, 1800W AC charging, 500W PV input, and <10ms UPS. The standard Max appears positioned as the simpler 2kWh model without the Max Plus solar/Anderson/extra-battery feature stack.

⚠ Note: Official EcoFlow US page shows DELTA 2 as out of stock and explicitly points buyers to DELTA 3. Manual documents six AC output sockets, but the U.S. NEMA subtype is not stated in text; only the total AC socket count is definite. Visual/product-page confirmation: U.S. unit shows 4 NEMA 5-15 outlets and 2 NEMA 5-20 outlets. Outside-source notes: broader owner/reviewer coverage generally treats DELTA 2 as a versatile portable unit with strong value and fast charging, but not the best EcoFlow choice for larger home-backup loads. Added V3.1: idle power, noise, and support quality from aggregated review consensus.

⚠ Note: Budget-oriented 1kWh DELTA 3 variant. Official pages/manual show 3 AC outlets, one 100W USB-C plus one 30W USB-C, one 18W USB-A, no extra battery port, 500W max solar input, 10ms UPS, and very quiet ~30dB operation. No official IP rating was found on the US product page or US manual.

⚠ Note: Official EcoFlow US specs list 1024Wh capacity, 1800W AC output (surge 3600W), 6 AC outlets, 2×18W USB-A, 2×100W USB-C, a 126W car socket, 2× DC5521 outputs, 1500W AC charging, 500W solar input, <10ms UPS, and expandability to 5kWh using DELTA 3 / DELTA Pro 3 / DELTA 2 / DELTA 2 Max extra batteries. No official IP rating was found on the US page/manual.

⚠ Note: Official EcoFlow US specs describe DELTA 3 Plus as a 1–5kWh expandable 1024Wh model with 1800W AC output, six AC outlets, dual 500W MPPT inputs (1000W total), 1500W AC charging, 2×36W USB-A, 2×USB-C with 140W max on the main port, a 126W car socket, and <10ms UPS. The manual link is under the EU path but serves the English-language unit documentation. No official US IP rating was found.