EcoFlow DELTA Pro Ultra X (1 inverter + 2 batteries): what it can run, and for how long
EcoFlow DELTA Pro Ultra X (1 inverter + 2 batteries): 12,288 Wh, 12,000 W continuous, $7,899 list price. About 10,445 Wh reaches your appliances (our 85% estimate).
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Specs checked:
Specifications
- Capacity
- 12,288 Wh source
- Continuous AC output
- 12,000 W (whole unit; a single 120 V outlet or circuit gives less) source
- Surge AC output
- no 120 V figure published
- Battery chemistry
- LFP (lithium iron phosphate) source
- Wall charging input
- 12,000 W source
- Solar input
- 10,000 W (80-500 V) source
- UPS switchover
- 10 ms source
- Expandable to
- 61,440 Wh source
- Warranty
- 5 years source
- List price
- $7,899 (regular price on EcoFlow's US store, checked 2026-11-03) source
Not stated on EcoFlow's pages, or not clear enough for us to use: a surge rating for normal use at 120 V, the number of AC outlets, weight and rated cycles.
Cheaper with at least the same capacity and output
None. No other power station we track with a list price is cheaper and has at least 12,288 Wh and 12,000 W continuous.
How long it runs one appliance
Each row is that appliance alone, on the built-in battery. 35 of the 35 appliances in our list can run on it; 0 can't (too many watts to run or start). For several appliances at once, use the planner.
| Appliance | Running / starting | Runs it? | Runtime |
|---|---|---|---|
| Refrigerator (full-size) | 150 to 400 W / 800 to 1,200 W | Yes | 10.6 days (cycling) |
| Chest freezer | 100 to 500 W / 500 to 1,000 W | Yes | 17.7 days (cycling) |
| Upright freezer | 100 to 500 W / 500 to 1,000 W | Yes | 9.7 days (cycling) |
| Mini fridge | 50 to 100 W / 400 to 600 W | Yes | 4.4 days nonstop |
| Microwave | 600 to 1,200 W | Yes | 8.7 hours nonstop |
| Coffee maker (4-cup) | 600 W | Yes | 17 hours nonstop |
| Electric kettle (1.7 L) | 1,500 W | Yes | 7 hours nonstop |
| Toaster | 1,200 W | Yes | 8.7 hours nonstop |
| Induction burner (single, portable) | 1,200 to 1,800 W | Yes | 5.8 hours nonstop |
| Sump pump (1/3 HP) | 500 to 800 W / 1,000 to 1,600 W | Yes | 13 hours nonstop |
| Sump pump (1/2 HP) | 800 to 1,050 W / 1,300 to 2,150 W | Yes | 9.9 hours nonstop |
| Well pump (1/2 HP) | 750 to 1,000 W / 1,500 to 2,000 W | Yes | 10 hours nonstop |
| Well pump (1 HP) | 1,000 to 2,000 W / 2,000 to 4,000 W | Yes | 5.2 hours nonstop |
| Window air conditioner (5,000 BTU) | 450 to 600 W / 900 to 1,200 W | Yes | 17 hours nonstop |
| Window air conditioner (10,000 BTU) | 900 to 1,200 W / 1,800 to 2,400 W | Yes | 8.7 hours nonstop |
| Space heater (electric) | 750 to 1,500 W | Yes | 7 hours nonstop |
| Furnace fan / blower (gas furnace, 1/2 HP) | 300 to 800 W / 800 to 1,600 W | Yes | 13 hours nonstop |
| Ceiling fan | 15 to 75 W | Yes | 5.8 days nonstop |
| Box fan | 50 to 200 W | Yes | 2.2 days nonstop |
| Wi-Fi router + modem | 10 to 20 W | Yes | 21.8 days nonstop |
| Laptop (charging / in use) | 20 to 100 W | Yes | 4.4 days nonstop |
| Desktop computer | 600 to 800 W | Yes | 13 hours nonstop |
| LED TV (32" to 55") | 80 to 400 W | Yes | 26 hours nonstop |
| Phone charging | 10 W | Yes | 43.5 days nonstop |
| Satellite internet (Starlink Standard dish) | 75 to 100 W | Yes | 4.4 days nonstop |
| LED light bulb | 8 to 15 W | Yes | 29 days nonstop |
| Oxygen concentrator (home, 5 L/min) | 310 W | Yes | 34 hours nonstop |
| Washing machine | 500 to 1,000 W / 1,000 to 2,300 W | Yes | 10 hours nonstop |
| Circular saw (7-1/4") | 1,200 to 1,800 W / 2,400 to 3,600 W | Yes | 5.8 hours nonstop |
| Garage door opener | 720 W / 1,420 W | Yes | 15 hours nonstop |
| Hair dryer | 1,800 W / 1,900 W | Yes | 5.8 hours nonstop |
| Aquarium heater (15-40 gallon tank) | 100 W | Yes | 4.4 days nonstop |
| CPAP: ResMed AirSense 11 | 56 W | Yes | 7.8 days nonstop |
| CPAP: ResMed AirSense 10 | 53 W | Yes | 8.2 days nonstop |
| CPAP: ResMed AirMini | 6 W | Yes | 69.1 days nonstop |
Runtime = 10,445 Wh usable (12,288 Wh x 85%) / the appliance's draw: its running watts nonstop, or its average over a day for appliances that cycle on and off. Appliance figures and their sources are on our methodology page.
Sources (EcoFlow): EcoFlow DELTA Pro Ultra X product page (US store) (checked 2026-11-03); EcoFlow DELTA Pro Ultra X product data (US store, prices) (checked 2026-11-03)