EcoFlow DELTA 3 Ultra Plus: what it runs and for how long
The EcoFlow DELTA 3 Ultra Plus is a 3,072 Wh LiFePO4 portable power station with a 3,600 W inverter (7,200 W surge). Compared with the EcoFlow DELTA 3 Ultra, it has 1,600 W of solar input instead of 800 W and weighs 74.3 lb instead of 72.1 lb. It meets our requirements for keeping a fridge running in an outage, home backup and RVs, plus 4 more uses.
What can the EcoFlow DELTA 3 Ultra Plus run, and for how long?
Combine loads in the EcoFlow DELTA 3 Ultra Plus runtime calculatorOn a full charge it runs a refrigerator for about 40 h and a chest freezer for about 3.4 days.
Who is the EcoFlow DELTA 3 Ultra Plus a good fit for?
The EcoFlow DELTA 3 Ultra Plus meets every requirement for 7 of the 12 uses we filter for.
- ✓Keeping a fridge running in an outage
- ✓Home backup
- ✓RVs
- ✓UPS use with computers and routers
- ✓Fast solar charging
- ✓Running a window AC for several hours
- ✓Starting a 120 V well or sump pump
- ✕Van life · needs weight ≤ 45 lb; the EcoFlow DELTA 3 Ultra Plus has 74.3 lb
- ✕Carrying a CPAP on trips (light enough to pack) · needs weight ≤ 20 lb; the EcoFlow DELTA 3 Ultra Plus has 74.3 lb
- ✕Balcony solar and apartments · needs weight ≤ 40 lb; the EcoFlow DELTA 3 Ultra Plus has 74.3 lb
- ✕A LiFePO4 station under $500 · needs list price ≤ $500; the EcoFlow DELTA 3 Ultra Plus has $2,199
Can you add batteries to the EcoFlow DELTA 3 Ultra Plus?
Yes. EcoFlow lists the EcoFlow DELTA 3 Ultra Plus as expandable with extra batteries, up to 11,000 Wh in total, so you can grow it for longer outages instead of replacing it.
Can the EcoFlow DELTA 3 Ultra Plus work as a UPS?
EcoFlow lists a switchover time of 10 ms for the EcoFlow DELTA 3 Ultra Plus, inside the 20 ms gap that the ITI (CBEMA) reference says typical computer equipment should ride through.
How fast does the EcoFlow DELTA 3 Ultra Plus recharge?
From a wall outlet it charges at up to 1,800 W; EcoFlow doesn't publish a full-charge time. From solar it needs about 2.6 hours of strong sun at its 1,600 W solar limit, with panels delivering 75% of their rating.
What are the EcoFlow DELTA 3 Ultra Plus's full specifications?
These figures come from EcoFlow's official US page, checked 2026-10-12. "Not published" marks specs EcoFlow doesn't publish.
| Capacity | 3,072 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| Rated cycles | Not published EcoFlow gives no cycle count, only a roughly 10-year lifespan claim. |
| AC output (continuous) | 3,600 W |
| AC surge | 7,200 W |
| AC outlets | 5 Spec lists 4 20A outlets plus one 30A TT-30, though the page also says 5 outlets. |
| Max USB-C output | 140 W |
| Max solar input | 1,600 W |
| Max AC charging input | 1,800 W |
| AC charge time (fastest mode) | Not published Wall charging at 1,800 W reaches 80% in 89 minutes; the 76-minute full charge is with Smart Generator 4000. |
| Expandable | Yes |
| Max with extra batteries | 11,000 Wh Expandable to 11 kWh with two DELTA Pro 3 Extra Batteries. |
| UPS switchover | 10 ms |
| Weight | 74.3 lb |
| Dimensions | 24.1 × 12.9 × 15.5 in |
| List price | $2,199 |
How does the EcoFlow DELTA 3 Ultra Plus rank against other 3,000 Wh and up power stations?
Among the 14 current 3,000 Wh and up models, the EcoFlow DELTA 3 Ultra Plus is in the top third for AC charging speed and UPS switchover and in the bottom third for Wh per list dollar.
| Spec | EcoFlow DELTA 3 Ultra Plus | Rank in band | vs band median | vs band leader |
|---|---|---|---|---|
| Capacity | 3,072 Wh | 10th of 14 | -14% | -39% vs Jackery Explorer 5000 Plus |
| AC output | 3,600 W | 5th of 14 | level | -50% vs Jackery Explorer 5000 Plus |
| Surge | 7,200 W | 5th of 14 | level | -50% vs Jackery Explorer 5000 Plus |
| Solar input | 1,600 W | 7th of 14 | level | -60% vs Jackery Explorer 5000 Plus |
| AC charging | 1,800 W | 3rd of 13 | level | -55% vs Jackery HomePower 3600 Pro Max |
| Rated cycles | Not published | — | — | — |
| Weight | 74.3 lb | 5th of 14 | -16% | +28% vs BLUETTI Elite 300 |
| UPS switchover | 10 ms | 2nd of 12 | level | — vs Jackery Explorer 5000 Plus |
| Wh per list $ | 1.40 | 12th of 14 | -19% | -49% vs BLUETTI Elite 400 |
How long does the EcoFlow DELTA 3 Ultra Plus last at different loads?
About 2,611 Wh reaches the AC outlets, so a steady 100 W load runs for about 26 h and a load at its full 3,600 W rating for about 44 minutes.
| Steady AC load | Runtime from full |
|---|---|
| 25 W | 4.4 days |
| 50 W | 2.2 days |
| 100 W | 26 h |
| 200 W | 13 h |
| 300 W | 8.7 h |
| 500 W | 5.2 h |
| 750 W | 3.5 h |
| 1,000 W | 2.6 h |
| 1,500 W | 1.7 h |
| 2,000 W | 1.3 h |
| 3,000 W | 52 min |
| 3,600 W | 44 min |
How many hours of sun does the EcoFlow DELTA 3 Ultra Plus need to refill?
With panels delivering 75% of their rating (our calculator's default), the EcoFlow DELTA 3 Ultra Plus needs the hours of strong sun below. Its 1,600 W solar limit caps the charge rate, so panels beyond about 2,133 W add nothing in strong sun.
| Panels | Charge rate | Sun hours to refill |
|---|---|---|
| 100 W of panels | 75 W | 41.0 h |
| 200 W of panels | 150 W | 20.5 h |
| 400 W of panels | 300 W | 10.2 h |
| 800 W of panels | 600 W | 5.1 h |
What can the EcoFlow DELTA 3 Ultra Plus run at the same time?
The EcoFlow DELTA 3 Ultra Plus can carry 10 of the 10 common pairs we check at once, with the runtimes below.
| Together | Runtime from full |
|---|---|
| refrigerator + wi-Fi router / modem | 30 h |
| refrigerator + chest freezer | 27 h |
| refrigerator + microwave oven | 2.4 h |
| refrigerator + electric kettle | 1.7 h |
| CPAP with heated humidifier + wi-Fi router / modem | 34 h |
| TV + wi-Fi router / modem | 19 h |
| window air conditioner + refrigerator | 3.3 h |
| sump pump + refrigerator | 3.0 h |
| space heater + wi-Fi router / modem | 1.7 h |
| microwave oven + electric kettle | 1.0 h |
Which EcoFlow DELTA 3 Ultra Plus specs are unpublished or conditional?
EcoFlow doesn't publish these specs for the EcoFlow DELTA 3 Ultra Plus: rated cycles.
4 published figures come with conditions, shown under the spec table: AC charge time, AC outlets, expanded capacity and rated cycles.
How does the EcoFlow DELTA 3 Ultra Plus compare with similar power stations?
By capacity, the nearest models from other brands are Anker SOLIX F3000, Jackery HomePower 3000 and BLUETTI Elite 300.
How is the EcoFlow DELTA 3 Ultra Plus different from the EcoFlow DELTA 3 Ultra?
The EcoFlow DELTA 3 Ultra is the closest EcoFlow model. Pick the EcoFlow DELTA 3 Ultra Plus if you want solar input; otherwise the EcoFlow DELTA 3 Ultra gives you the opposite trade-off.
| EcoFlow DELTA 3 Ultra Plus | EcoFlow DELTA 3 Ultra | |
|---|---|---|
| Weight | 74.3 lb | 72.1 lb |
| Solar input | 1,600 W | 800 W |
| Expandable | Yes | No |
| List price | $2,199 | $1,599 |
Which models from other brands are closest in size?
Anker SOLIX F3000
Jackery HomePower 3000
BLUETTI Elite 300Which other EcoFlow models are similar?
How this page was made. Specs come from each manufacturer's official US spec page or manual, checked on the date shown; specs a manufacturer doesn't publish are marked "Not published". Runtimes are calculated (capacity × 85% inverter efficiency ÷ appliance draw), not measured. We haven't hands-on tested these units. Method and sources · Affiliate disclosure