EcoFlow DELTA 3 Ultra Plus (3072Wh)
The short answer
This is a 3,072Wh battery with 3,600W of output, which means it stores about 2,611 watt-hours you can actually use and can run anything drawing up to 3,600 watts at once.
It runs indoors and makes no fumes. Of the 15 household loads we track, it can handle 14. It would keep a refrigerator going for 3.7–26.1 hours.
Check you have the right model
EcoFlow sells another model that can be mistaken for this one:
- EcoFlow DELTA 3 Ultra (3072Wh) — one extra word: PLUS. same battery size and same output as this one.
Read the full model name off the label on the unit itself, not off the box or the listing. The figures on this page apply only to the exact name in the heading above.
Power and battery figures published by the maker. We have not yet researched the rest of this model.
Judged in: Which EcoFlow DELTA 3? The whole family, judged against one plan.
Specifications only
We have the maker's power and battery figures, so the planner can size it. We have not yet checked the manual, the solar and wall-charging limits, extra batteries, the warranty, the official add-ons, or safety recalls.
Treat this as a model to research, not one we vouch for. The fully researched models have all of that.
What it can run
| Load | Draw | Runtime | Verdict |
|---|---|---|---|
| Wi-Fi router and modem | 15–40W | 65.3–174.1h | Will work |
| Phone charging and small USB devices | 10–40W | 65.3–261.1h | Will work |
| A few LED lights | 15–80W | 32.6–174.1h | Will work |
| Laptop and monitor | 45–150W | 17.4–58.0h | Will work |
| CPAP | 30–100W | 26.1–87.0h | Will work |
| Refrigerator/freezer | 100–700W | 3.7–26.1h | Might work |
| Chest freezer | 80–500W | 5.2–32.6h | Might work |
| Sump pump | 700–1,500W | 1.7–3.7h | Might work |
| Window air conditioner | 500–3,250W | 0.8–5.2h | Might work |
| Microwave | 800–1,800W | 1.5–3.3h | Might work |
| Coffee maker | 700–1,500W | 1.7–3.7h | Might work |
| Television | 40–250W | 10.4–65.3h | Will work |
| Garage door opener | 300–800W | 3.3–8.7h | Will work |
| 12 V compressor fridge (camping) | 25–110W | 23.7–104.4h | Will work |
The two numbers are how long it lasts if your appliances are efficient, and if they are not. Sized over a 24-hour outage.
Living with it
What the maker’s own pages and manual say about owning this unit, and what owners report in public. Each line links to where it was read. Nothing here is our own test.
- Switchover when the grid drops
- <10 ms (maker spec)images.thdstatic.com
- Pass-through charging
- Yes, supports simultaneous charge+discharge (UPS/pass-through/bypass mode); running appliances while charging slows the recharge rate (maker FAQ)ecoflow.com
- Wall recharge
- 0-80% in 91 min / 0-100% in 120 min via 1800W wall charging (product page separately states 89 min for 0-80%); 0-80% in 101 min via solar; 0-80% in ~48 min via solar+generator dual charging (all maker-stated)ecoflow.com
- AC input
- 1800W max AC input (US/JP: 100-120V~15A); specs page separately lists 'AC Input (Charge Only): 1800W'images.thdstatic.com
- USB-C
- 140W max on the single primary USB-C port (5/9/12/15V@3A, 20V@5A, 28V@5A); the two secondary USB-C ports are 45W max each, 45W shared totalimages.thdstatic.com
- Outlets and ports
- US config: 4x 20A NEMA 5-20 + 1x 30A AC outlets (3600W total, 7200W surge); 1x USB-A 18W; 1x USB-C 140W (HID); 2x USB-C 45W each (45W shared); 1x Anderson 12.6V/30A/378W DC output; 1x cigarette-lighter 12.6V/10A/126W DC output; 1x solar/DC input; 1x AC input socket; 1x extra-battery expansion portimages.thdstatic.com
- Noise
- <=25 dB (maker-stated, at 600W load)us.ecoflow.com
- Charges between
- 0 to 45 degC (32 to 113 degF)images.thdstatic.com
- Runs between
- -10 to 45 degC (14 to 113 degF)images.thdstatic.com
- Cycle life
- No cycle-count figure is published for this exact model; EcoFlow's own FAQ states only that the LFP battery is estimated to last approximately 10 years under normal use (not a cycle count). Do not treat sibling model DELTA 3 Plus's separately-published 4000-cycle figure as applicable to this unit.ecoflow.com
- Low-load shutoff
- Whole unit auto-powers-off after 30 minutes with no input/output power once the AC and DC output buttons are switched off; separately, the AC output socket alone auto-disables if left idle unless AC timeout is set to 'Never' in the appecoflow.com
- App
- EcoFlow app (marketed on the product page as 'OASIS 3.0 Smart App Control'), connects via Wi-Fi and Bluetoothus.ecoflow.com
- Expansion
- Dedicated rear 'Extra battery port' expands total capacity from 3072Wh up to 11kWh by connecting a compatible EcoFlow Smart Extra Battery (e.g. DELTA 3 Max Plus 2048Wh); the same port also accepts an EcoFlow Smart Generatorimages.thdstatic.com
- Size
- approx. 24.14 x 12.90 x 15.55 in (613.1 x 327.7 x 395.0 mm; manual also lists 79.35 L volume). Only metric figures are given on any maker source; inches are my conversion.images.thdstatic.com
- Weight
- approx. 74.3 lb (33.7 kg net weight, manufacturer figure)images.thdstatic.com
- Warranty
- Up to 5 years total: 3-year standard warranty plus a 2-year extension available on EcoFlow app registrationus.ecoflow.com
What owners report, from public threads and long-term reviews; not our own testing.
- A hands-on reviewer measured idle power draw at about 24W with both inverter output sides switched on, dropping to about 22W with the 30A outlet turned off, calling the figures perfectly acceptable for a unit this size.thesolarlab.com
- The same reviewer found the cooling fans stayed unobtrusive even when the inverter was pushed to its maximum rated output, never becoming loud or distracting.thesolarlab.com
- Reviewers called out backward compatibility with older EcoFlow extra-battery packs as unusually generous, contrasting it with most competitors that force buyers into a new battery ecosystem with each new model.thesolarlab.com
- A reviewer noted that despite the unit's 74-lb weight and likely use during blackouts, it has no built-in light, which they felt would have been a helpful addition.thesolarlab.com
- Independent bench testing measured the UPS/EPS transfer time at about 8.25 ms (within EcoFlow's <10 ms claim) and put discharge efficiency around 85% and recharge efficiency around 87%, broadly matching or slightly beating the maker's own figures.storagereview.com
- Overload protection behaves unevenly: if total output exceeds the 3,600W rating, only the 30A outlet shuts off even when the overload originates on the standard 120V outlets, which one reviewer called impractical for whole-home backup wiring.thesolarlab.com
- The unit has no rubber bump-stops for when it is stood upright on its narrow end, which a reviewer flagged as a risk of scratching the plastic housing over time.thesolarlab.com
- Several buyers discussing the unit in online deal-forum threads noted it cannot output 240V the way the sibling DELTA 3 Pro can, which they said limits its usefulness for whole-home backup circuits that need 240V (e.g., well pumps, electric dryers).slickdeals.net
Specifications
- Capacity
- 3,072Wh nameplate · 2,611Wh assumed usable
- Continuous output
- 3,600W
- Surge output
- 7,200W
- Output voltage
- 120V
- Weight
- 33.7kg
- Solar input
- not captured
- AC recharge
- not captured
- Expansion battery
- not captured
- Warranty
- not captured
- Generator recharge
- not captured
Recall screen
Not screened
No recall screen recorded for this product.
No manufacturer recall-lookup URL is captured for this brand. Use the CPSC recall search.
Buying the right one
Verified listing — the bare unit
EF ECOFLOW DELTA 3 Ultra Plus 3072Wh Portable Power Station, 3600W Output
ASIN B0FQVG59LV · $1,599.00 when checked on 2026-08-13 · purchasable
Title states 3072Wh and 3600W, matching our record exactly. A price is not a product attribute: treat this as the figure at capture time, not today's price.
Some links on this page are affiliate links. If you buy through one we may earn a commission, at no extra cost to you. It does not affect which products the planner recommends: rankings come from the sizing rules on our methodology page, and a product with unresolved safety identity is never ranked or linked regardless of commission.
Listings we rejected
Searching for this model returns bundles, sibling models and refurbished units alongside the bare product. These are the ones we checked and did not link, with the reason.
| Listing | Price | Why it is not this product |
|---|---|---|
| EF ECOFLOW 3072Wh DELTA 3 Ultra Plus with 400W Solar Panel and AC Cable | $1,999 | Listing is a bundle (solar panel or kit), not the bare base unit our specifications describe. |
| EF ECOFLOW Portable Power Station DELTA 3 Max Plus, 2048Wh, 3000W Output | $1,199 | Listing title does not contain the model name 'DELTA 3 Ultra Plus'. |
| EF ECOFLOW DELTA 3 Ultra Plus 3072Wh Power Station with 2X220W Solar Panels | $2,099 | Listing is a bundle (solar panel or kit), not the bare base unit our specifications describe. |
| EF ECOFLOW Delta 3 Ultra 3072Wh Power Station with XT60 Solar Cable | $1,399 | Listing is a bundle (solar panel or kit), not the bare base unit our specifications describe. |
| EF ECOFLOW Portable Power Station 3600Wh DELTA Pro, 120V 3600W AC Output | $1,899 | Listing title does not contain the model name 'DELTA 3 Ultra Plus'. |