Product Review · Updated November 2026
EcoFlow DELTA 3000 Gen4 Review: 3kWh of Home Backup at 57 lb
The EcoFlow DELTA 3000 Gen4 is a 3,072Wh LFP power station with 3,600W of output (7,200W surge) that weighs 57.3 lb. It suits home backup and RV use if you don't need to add batteries later. It cannot be expanded and takes 1,000W of solar on one input. If you want room to grow, the DELTA 3800 Gen4 is the better buy.
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By Morgan Chen
Reviewed & approved by Juhi Sahni
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Published: 2026-11-07
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Updated:
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Editorial Standards
Capacity
3,072
Watt-hours (LFP)
AC Output
3,600
Watts (7,200W surge)
Weight
57.3
Pounds
Solar Input
1,000
Watts max (1 input)
Need expansion? Jump to the DELTA 3800 Gen4 comparison.
EcoFlow DELTA 3000 Gen4: Overview
EcoFlow announced the DELTA Gen4 series for the US on November 4, 2026 (PR Newswire). There are two models: the 3000 Gen4 reviewed here and the larger, expandable 3800 Gen4. Both use LFP cells and share the same inverter rating: 3,600W continuous with a 7,200W surge (ESS News; pv magazine USA). EcoFlow says X-Boost runs resistive appliances up to 4,600W.
The main selling point is weight. At 57.3 lb, the 3000 Gen4 carries about 54Wh per pound. The 3,072Wh Jackery HomePower 3000 weighs 59.5 lb, and the Anker SOLIX F3000 weighs 91.5 lb on wheels. Amazon's listing calls it the "smallest and lightest in its class." That is EcoFlow's claim. The published weights back up “lightest” against the 3kWh units we cover, but we have no verified dimensions to judge “smallest.” It has handles but no wheels (ESS News).
For outages, the useful features are a UPS switchover under 10ms and very low idle draw: 3W in standby and 14W with the AC inverter on and nothing plugged in. EcoFlow lists both on its DELTA Gen4 series page and on Amazon. A 3W standby draw would take about 42 days to drain a full pack (3,072Wh ÷ 3W ÷ 24h). That is why the unit can sit in a closet between storms. The series also adds Storm Guard Mode 2.0, which uses US National Weather Service data to help you prepare for severe weather. It adds Fridge Runtime Boost and an Emergency Power Mode that holds a small DC reserve for phones and lights after the display reads 0% (PR Newswire).
DELTA 3000 Gen4 vs. Other 3–4kWh Stations
Specs come from our product database. Current prices come from Amazon.
| Generator | Capacity | Output | Solar In | Weight | Expands | Price | Amazon |
|---|---|---|---|---|---|---|---|
| ★ EcoFlow DELTA 3000 Gen4 | 3,072 Wh | 3,600W | 1,000W | 57.3 lb | No | Check price at Amazon → | View → |
| EcoFlow DELTA 3800 Gen4 | 3,763 Wh | 3,600W | 2,000W | 67.5 lb | To 12 kWh | $2,199.00 | View → |
| Jackery HomePower 3000 | 3,072 Wh | 3,600W | 1,000W | 59.5 lb | No | $1,499.00 | View → |
| Anker SOLIX F3000 | 3,072 Wh | 3,600W | 2,400W | 91.5 lb | To ~12.3 kWh | $1,699.99 | View → |
| EcoFlow Delta Pro 3 | 4,096 Wh | 4,000W | 2,600W | 113.5 lb | To 12 kWh per unit | Check price at Amazon → | View → |
EcoFlow’s own DELTA 3 Ultra has the same 3,072Wh and 3,600W, but it weighs about 15 lb more; its Ultra Plus version adds 1,600W of solar and expansion. The 3000 Gen4 and the HomePower 3000 are the closest match: the same 3,072Wh, the same 3,600W/7,200W inverter, 1,000W of solar, and no expansion. The Gen4 is 2.2 lb lighter and EcoFlow rates its UPS at under 10ms. Jackery rates the HomePower 3000 at 20ms or faster. The F3000 and Delta Pro 3 weigh more, but they offer expansion and, for the Delta Pro 3, 240V output. For the whole EcoFlow lineup, see Which EcoFlow DELTA should I buy? For other brands at this inverter size, see our best 3000-watt solar generators roundup.
DELTA 3000 Gen4 vs. DELTA 3800 Gen4
Both models have the same inverter, UPS and standby figures. The differences are capacity, solar input, expansion and weight:
| Spec | DELTA 3000 Gen4 | DELTA 3800 Gen4 |
|---|---|---|
| Capacity | 3,072 Wh | 3,763 Wh |
| Output / surge | 3,600W / 7,200W | 3,600W / 7,200W |
| Solar input | 1,000W (1 input) | 2,000W (2 × 1,000W) |
| Expansion | None | 4–12 kWh (DELTA Pro 3 or DELTA 3 Max Plus extra batteries) |
| AC recharge 0–100% | 118 min | 146 min |
| Charging methods | 4 (AC, solar, alternator, generator) | 6 (adds solar + alternator, solar + generator) |
| Weight | 57.3 lb | 67.5 lb |
| Price | Check price at Amazon → | $2,199.00 |
Sources: Amazon listings for both models, EcoFlow’s DELTA Gen4 series page and launch release, plus Popular Science.
Pick the 3800 Gen4 if you might ever add a battery
The extra 691Wh adds about 1.2 hours at a 500W load. Expansion is the bigger difference. EcoFlow says the 3800 Gen4 expands to 12kWh with DELTA Pro 3 or DELTA 3 Max Plus Smart Extra Batteries, and Power Station Arena reports a limit of two extra batteries (PR Newswire; Power Station Arena). The extra solar input also doubles what panels can return in a day. You carry 10.2 lb more for it.
Pros & Cons
Pros
- ✓ 3,072Wh at 57.3 lb — about 54Wh per pound
- ✓ 3,600W continuous / 7,200W surge for compressors and pumps
- ✓ UPS switchover under 10ms
- ✓ 3W standby and 14W no-load draw
- ✓ 0–100% on AC in 118 minutes (EcoFlow figure)
- ✓ LFP cells rated to keep 70% capacity after 6,000 cycles
Cons
- ✗ Not expandable — the capacity you buy is the capacity you keep
- ✗ One 1,000W solar input (the 3800 Gen4 has two)
- ✗ No published 240V output
- ✗ No wheels on a 57 lb box
- ✗ The full warranty term requires registration (3 years base, 5 with registration)
Real-World Runtime: How Long Will It Last?
Plan on about 85% of the rated capacity reaching your devices after inverter losses. That is roughly 2,611Wh on the 3000 Gen4 and 3,199Wh on the 3800 Gen4. Runtime = usable Wh ÷ load. These are planning estimates, not measurements.
| Typical load | Approx. draw | DELTA 3000 Gen4 | DELTA 3800 Gen4 |
|---|---|---|---|
| Fridge (averaged over its on/off cycle) | 60 W | ~44 hours | ~53 hours |
| Fridge + router + LED lights + phones | 300 W | ~8.7 hours | ~11 hours |
| Fridge + freezer + CPAP + fans | 500 W | ~5.2 hours | ~6.4 hours |
| Furnace blower + fridge + small appliances | 1,000 W | ~2.6 hours | ~3.2 hours |
| Microwave + fridge + coffee maker | 2,000 W | ~1.3 hours | ~1.6 hours |
| Maximum continuous output | 3,600 W | ~44 minutes | ~53 minutes |
EcoFlow quotes up to 58 hours of fridge runtime for the 3000 Gen4 (70 hours for the 3800) with Fridge Runtime Boost. That feature trims energy use between compressor cycles. The figure comes from EcoFlow's own test, so treat it as a best case. Our estimate above, about 44 hours at a 60W average, assumes a typical fridge with Boost off. To size your own load, use the solar size calculator.
Charging & Solar Input
| Source | Published figure | Notes |
|---|---|---|
| AC wall | ~1,800W; 0–100% in 118 min | EcoFlow gives the 118-minute time. The 1,800W input comes from third-party spec tables (see note below). |
| Solar | 1,000W, one input | 11–60V, 20A per published spec tables |
| Car alternator | Supported | One of EcoFlow's four listed methods. We could not confirm the charge rate. |
| Generator | Supported (AC input) | Useful for long, cloudy outages |
EcoFlow's series page lists 1,000W of PV input for the 3000 Gen4 and 2×1,000W for the 3800 Gen4 (EcoFlow). Backup Power Hub and Power Station Arena both put the input at 11–60V and 20A, with about 1,800W of AC input from a standard 120V outlet. EcoFlow's US product page would not load when we checked, so treat the voltage and AC-watt figures as published third-party figures until EcoFlow confirms them.
What the 60V ceiling means in practice: panels rarely deliver their full rating, so plan on about 75%. That makes 1,000W of panels worth roughly 750W, or about 4 hours of strong sun to refill 3,072Wh. A 60V limit also caps how many panels you can wire in series. Panel open-circuit voltage rises in cold weather, so check each panel's Voc before stringing two together. Most larger arrays on this unit will need parallel wiring. Our EcoFlow power station guide covers EcoFlow's panel options.
Who Should Buy the DELTA 3000 Gen4 — and Who Shouldn't
Buy it if you…
- ✓ Want close to two days of fridge-only backup, or a long evening of fridge, router and lights, in a 57.3 lb box
- ✓ Keep a desk or router on it full time. The sub-10ms UPS and 3W standby suit that (see power station vs. UPS)
- ✓ Need 3,600W for a microwave, well pump or power tools on 120V
- ✓ Already know 3kWh covers your needs and won't add batteries
Skip it if you…
- ✗ Might ever want more capacity — get the DELTA 3800 Gen4, the expandable Anker SOLIX F3000, or start smaller with the Delta 3 Max Plus, a 2kWh unit that grows to 10kWh
- ✗ Need 240V for a well pump, dryer circuit or split-phase panel — the EcoFlow Delta Pro 3 is EcoFlow's portable 240V option
- ✗ Plan to wire it into your home panel now — EcoFlow hasn't published Gen4 Smart Home Panel compatibility, so read our transfer switch guide first
- ✗ Only need phones, lights and a CPAP — a 1–2kWh unit covers that for far less
DELTA Gen4 vs. Delta Pro 3
The Delta Pro 3 is a different class of machine. It has 4,096Wh, 4,000W of output with 120V and 240V split-phase, 2,600W of solar, and expansion. It also weighs 113.5 lb, about double the 3000 Gen4. If your outage plan is a fridge, a furnace blower and the internet on 120V, the Gen4 covers it at half the weight. If you need 240V loads, whole-panel integration through the Smart Home Panel 2, or more than 4kW, the Delta Pro 3 is still EcoFlow's home-backup flagship. The 3800 Gen4 sits between them. Per its Amazon listing, it accepts the same DELTA Pro 3 Smart Extra Battery the Pro 3 uses.
Full Specifications
| Battery capacity | 3,072 Wh (LFP) |
| AC output | 3,600W continuous · 7,200W surge · X-Boost to 4,600W (EcoFlow) |
| Output voltage | 120V (no 240V output published) |
| AC outlets | 5: four 20A and one 30A |
| USB | 3× USB-C (EcoFlow); 1× USB-A (Popular Science) |
| Solar input | 1,000W, one input (11–60V, 20A per spec tables) |
| AC charging | ~1,800W (spec tables); 0–100% in 118 min (EcoFlow) |
| Expandability | None (EcoFlow: “Non-expandable”) |
| UPS switchover | <10 ms |
| Idle draw | 3W standby · 14W AC on, no load |
| Weight | 57.3 lb (26 kg) |
| Cycle life | Cells retain 70% after 6,000 cycles (EcoFlow) |
| Warranty | 3 years; 2-year extension on registration via the EcoFlow app or website |
We have not found published dimensions on a source we could verify, so they are omitted.
Verdict
The DELTA 3000 Gen4 is the 3kWh station to get if weight matters and you won't expand.
It has the same 3,072Wh and 3,600W as the HomePower 3000, a faster published UPS, very low idle draw and a sub-two-hour wall recharge, all at 57.3 lb. In our scoring it rates 87/100, a score built from published specs and the current Amazon price. The ceiling is the trade-off: no expansion and one 1,000W solar input. If there's any chance you'll want 6–12kWh later, the 3800 Gen4 (89/100 in our scoring) is the safer long-term buy.
Sources & Data Verification
We do not physically test units. This review synthesizes manufacturer specs, launch coverage and the Amazon listings. Runtime figures are planning estimates. Specs we could not confirm from at least two independent sources are labeled or omitted. Read more on our Editorial Standards page.
- • EcoFlow — DELTA Gen4 series page (capacity, output, PV input, expandability, UPS, warranty, cycle life)
- • PR Newswire — EcoFlow DELTA Gen4 launch release (Nov 4, 2026)
- • ESS News — EcoFlow launches Delta Gen4 and River Gen4 in the US (Nov 5, 2026)
- • pv magazine USA — EcoFlow launches new portable power station series (Nov 6, 2026)
- • Popular Science — DELTA Gen4 features and specs
- • Backup Power Hub — DELTA 3000 Gen4 spec sheet; Power Station Arena — DELTA Gen4 spec table
Frequently Asked Questions
Is the EcoFlow DELTA 3000 Gen4 expandable?
No. EcoFlow lists the DELTA 3000 Gen4 as non-expandable, so it stays at 3,072Wh. The DELTA 3800 Gen4 is the expandable model: it goes from 4kWh to 12kWh with up to two DELTA Pro 3 or DELTA 3 Max Plus Smart Extra Batteries.
What is the difference between the DELTA 3000 Gen4 and DELTA 3800 Gen4?
Both have a 3,600W inverter with 7,200W surge and a UPS under 10ms. The 3800 Gen4 adds 691Wh (3,763Wh total), a second 1,000W solar input (2,000W total), expansion to 12kWh and two extra charging combinations. It weighs 67.5 lb against 57.3 lb and takes 146 minutes to recharge on AC against 118.
How much solar input does the DELTA 3000 Gen4 take?
Up to 1,000W on a single solar input, per EcoFlow. Published spec tables give the input range as 11–60V at 20A. At a realistic 75% of panel rating, 1,000W of panels needs about 4 hours of strong sun to refill the battery.
Does the DELTA 3000 Gen4 support 240V?
EcoFlow has not published 240V output for the DELTA 3000 Gen4, and third-party spec tables list it as 120V only. For 240V loads like a well pump or a split-phase panel, EcoFlow's portable option is the Delta Pro 3.
How long will the DELTA 3000 Gen4 run a refrigerator?
About 44 hours for a typical fridge that averages 60W over its cycle, using roughly 2,611Wh of usable energy. EcoFlow's own figure is up to 58 hours with Fridge Runtime Boost enabled. Treat that as a best case.
What warranty does the DELTA 3000 Gen4 have?
EcoFlow lists a 3-year basic warranty, extended by 2 years when you register the product through the EcoFlow app or website. EcoFlow rates the LFP cells to keep 70% of their capacity after 6,000 cycles.