EcoFlow DELTA Pro Ultra X: what it runs and for how long
A 12,288 Wh lithium iron phosphate system sold as separate pieces with 12,000 W of output (surge rating not published). At the default 85% efficiency that is 10,445 Wh you can use.
Updated
Key numbers
12,288Wh
Rated capacity
10,445Wh
Usable at 85%, 12,288 × 0.85
12,000W
Continuous output
Not published
Surge, checks use the continuous rating
298.7lb
Weight, all pieces, 135.5 kg
$7,999
Price on the maker's page, $0.65 per Wh, as of October 2026
Enough Watts may earn a commission when you buy through links on this page. It never changes the math or the ranking.
What it runs
It powers all 16 common appliances below, each on its own. A modern full size refrigerator runs about 8.0 days on a full charge.
| Appliance | Watts | Can it power it | On a full charge |
|---|---|---|---|
| Phone charging | 20 W | Runs it | 21.8 daysSurge rating not published, so the check uses the continuous rating. |
| Laptop (while charging) | 65 W | Runs it | 6.7 daysSurge rating not published, so the check uses the continuous rating. |
| Wi-Fi router and modemestimate | 28 W | Runs it | 15.5 daysSurge rating not published, so the check uses the continuous rating. |
| LED bulb, 60 W equivalent (800 lumens) | 8.5 W | Runs it | 51.2 daysSurge rating not published, so the check uses the continuous rating. |
| TV, 55 inch LED (LCD) | 82 W | Runs it | 5.3 daysSurge rating not published, so the check uses the continuous rating. |
| CPAP machine (no humidifier) | 11 W | Runs it | 39.6 daysSurge rating not published, so the check uses the continuous rating. |
| Oxygen concentrator (home, stationary) | 290 W | Runs it | 36.0 hCounts the running watts for every hour you enter.Starting watts not published; motors often need 2 to 3 times their running watts to start.Surge rating not published, so the check uses the continuous rating. |
| Box fan (20 inch) | 125 W | Runs it | 3.5 daysCounts the running watts for every hour you enter.Starting watts not published; motors often need 2 to 3 times their running watts to start.Surge rating not published, so the check uses the continuous rating. |
| Refrigerator (modern, full size) | 275 W1,000 W to start | Runs it | 8.0 daysSurge rating not published, so the check uses the continuous rating. |
| Chest freezer | 300 W750 W to start | Runs it | 13.1 daysSurge rating not published, so the check uses the continuous rating. |
| Sump pump (1/2 HP) | 925 W1,725 W to start | Runs it | 11.3 hAssumes the motor runs the whole time; real use is often less.Surge rating not published, so the check uses the continuous rating. |
| Drip coffee maker | 900 W | Runs it | 11.6 h of useSurge rating not published, so the check uses the continuous rating. |
| Microwave oven (1,000 W cooking power) | 1,530 W | Runs it | 6.8 h of useSurge rating not published, so the check uses the continuous rating. |
| Electric kettle | 1,500 W | Runs it | 7.0 h of useSurge rating not published, so the check uses the continuous rating. |
| Window air conditioner (5,000 BTU) | 525 W1,050 W to start | Runs it | 19.9 hAssumes the motor runs the whole time; real use is often less.Surge rating not published, so the check uses the continuous rating. |
| Electric space heater (1,500 W) | 1,500 W | Runs it | 7.0 hSurge rating not published, so the check uses the continuous rating. |
Running time is usable watt hours divided by the appliance's average draw, with nothing else plugged in. Loads used for minutes a day show minutes of use. Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.
Explained in: Why you get less than the rated capacity, Starting watts explained and How to read an appliance label for watts.
Will it run your appliance
Pick any of the appliance types in the data to see whether the EcoFlow DELTA Pro Ultra X powers it and for how long.
Recharging
From the wall
Wall charging power and time: not published.
From solar
It takes up to 10,000 W of solar. Worked at 4 peak sun hours, counting 75% of the panel rating to allow for heat, angle and controller losses:
- 200 W of panels × 4 h of sun × 0.75 = 600 Wh a day. From empty to full: 12,288 ÷ (200 × 0.75) = 81.9 hours of sun.
- 10,000 W of panels × 4 h of sun × 0.75 = 30,000 Wh a day. From empty to full: 12,288 ÷ (10,000 × 0.75) = 1.6 hours of sun.
Work out other panel sizes for the EcoFlow DELTA Pro Ultra X
Explained in: How much solar to recharge a power station.
From a car
Car charging input: not published.
Expansion and backup mode
It takes expansion batteries (DELTA Pro Ultra X Smart Extra Battery) up to 61,440 Wh in total: 52,224 Wh usable (61,440 × 0.85).
Backup (UPS) mode: the maker states a switchover of 20 ms or faster.
It supplies 240 V split phase on its own.
Explained in: Power station backup mode (UPS) explained.
Full specifications
- Rated capacity
- 12,288 Wh
- Battery chemistry
- LiFePO4 (lithium iron phosphate)
- Cycle life
- Not published
- Continuous AC output
- 12,000 W
- Surge rating
- Not published
- AC outlets
- 4
- AC voltage
- 120 V and 240 V
- 240 V
- 240 V split phase on its own
- TT-30 RV outlet
- no
- L14-30 outlet
- yes
- USB-C
- 0 ports
- USB-A
- 0 ports
- Wall charging input
- Not published
- Solar input
- up to 10,000 W
- Expansion batteries
- yes, up to 61,440 Wh in total (DELTA Pro Ultra X Smart Extra Battery)
- Backup (UPS) switchover
- 20 ms or faster
- Weight
- 298.7 lb (135.5 kg) in total, sold as separate pieces
- Ingress rating
- IP54
- Noise
- 30 dBas the maker publishes it; conditions differ between makers
- App connection
- Wi-Fi, Bluetooth
- Warranty
- 5 years
Battery chemistry: LiFePO4 vs NMC batteries in power stations.
Price
$7,999, the price shown on the maker's page in October 2026. That is $0.65 per Wh of rated capacity. Sale prices change often and are not stored; the maker's page shows today's price and stock.
EcoFlow's page for the DELTA Pro Ultra X (opens in a new tab)
Enough Watts may earn a commission when you buy through links on this page. It never changes the math or the ranking.
Similar stations
The nearest capacities in the data, from any brand.
| Power station | Capacity | Output | Surge | Weight | Price |
|---|---|---|---|---|---|
| EcoFlow DELTA Pro 3 | 4,096 Wh | 4,000 W | 8,000 W | 113.5 lb (51.5 kg) | $3,699$0.90 per Wh |
| OUPES Guardian 6000 V2 | 4,608 Wh | 6,000 W | 9,000 W | 111.8 lb (50.7 kg) | $2,699$0.59 per Wh |
| Jackery Explorer 5000 Plus | 5,040 Wh | 7,200 W | 14,400 W | 134.5 lb (61 kg) | $3,499$0.69 per Wh |
| EcoFlow DELTA Pro Ultra | 6,144 Wh | 7,200 W | 10,800 W | 181.7 lb (82.4 kg) | $5,799$0.94 per Wh |
All 11 EcoFlow power stations · Compare all 54 power stations
Sources
Researched from these pages, then checked against them a second time.
- EcoFlow DELTA Pro Ultra X | Fast-Install Whole-Home Backup maker product page, checked
- EcoFlow DELTA Pro Ultra X_User Manual maker manual, checked
We read published specifications and do the math; we do not test products. The methodology states every formula on this page.