EcoFlow DELTA Pro Ultra: what it runs and for how long
A 6,144 Wh lithium iron phosphate system sold as separate pieces with 7,200 W of output (10,800 W surge). At the default 85% efficiency that is 5,222 Wh you can use.
Updated
Key numbers
6,144Wh
Rated capacity
5,222Wh
Usable at 85%, 6,144 × 0.85
7,200W
Continuous output
10,800W
Surge
181.7lb
Weight, all pieces, 82.4 kg
$5,799
List price, $0.94 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 4.0 days on a full charge.
| Appliance | Watts | Can it power it | On a full charge |
|---|---|---|---|
| Phone charging | 20 W | Runs it | 10.9 days |
| Laptop (while charging) | 65 W | Runs it | 3.3 days |
| Wi-Fi router and modemestimate | 28 W | Runs it | 7.8 days |
| LED bulb, 60 W equivalent (800 lumens) | 8.5 W | Runs it | 25.6 days |
| TV, 55 inch LED (LCD) | 82 W | Runs it | 2.7 days |
| CPAP machine (no humidifier) | 11 W | Runs it | 19.8 days |
| Oxygen concentrator (home, stationary) | 290 W | Runs it | 18.0 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. |
| Box fan (20 inch) | 125 W | Runs it | 41.8 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. |
| Refrigerator (modern, full size) | 275 W1,000 W to start | Runs it | 4.0 days |
| Chest freezer | 300 W750 W to start | Runs it | 6.5 days |
| Sump pump (1/2 HP) | 925 W1,725 W to start | Runs it | 5.6 hAssumes the motor runs the whole time; real use is often less. |
| Drip coffee maker | 900 W | Runs it | 5.8 h of use |
| Microwave oven (1,000 W cooking power) | 1,530 W | Runs it | 3.4 h of use |
| Electric kettle | 1,500 W | Runs it | 3.5 h of use |
| Window air conditioner (5,000 BTU) | 525 W1,050 W to start | Runs it | 9.9 hAssumes the motor runs the whole time; real use is often less. |
| Electric space heater (1,500 W) | 1,500 W | Runs it | 3.5 h |
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 powers it and for how long.
Recharging
From the wall
Maximum AC charging input: 3,000 W, the maker's top figure, which needs more than a standard US 15 A outlet gives.
From solar
It takes up to 5,600 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: 6,144 ÷ (200 × 0.75) = 41 hours of sun.
- 5,600 W of panels × 4 h of sun × 0.75 = 16,800 Wh a day. From empty to full: 6,144 ÷ (5,600 × 0.75) = 1.5 hours of sun.
Work out other panel sizes for the EcoFlow DELTA Pro Ultra
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 Series Smart Extra Battery) up to 30,000 Wh in total: 25,500 Wh usable (30,000 × 0.85).
Backup (UPS) mode: its UPS outlets pass power straight through, so there is no switchover gap.
It supplies 240 V split phase on its own.
Explained in: Power station backup mode (UPS) explained.
Full specifications
- Rated capacity
- 6,144 Wh
- Battery chemistry
- LiFePO4 (lithium iron phosphate)
- Cycle life
- 3,500 cycles to 80% capacity
- Continuous AC output
- 7,200 W
- Surge rating
- 10,800 W
- AC outlets
- 6
- AC voltage
- 120 V and 240 V
- 240 V
- 240 V split phase on its own
- TT-30 RV outlet
- yes
- L14-30 outlet
- yes
- USB-C
- 2 ports, up to 100 W
- USB-A
- 2 ports
- Wall charging input
- up to 3,000 W
- Solar input
- up to 5,600 W
- Expansion batteries
- yes, up to 30,000 Wh in total (DELTA Pro Ultra Series Smart Extra Battery)
- Backup (UPS) switchover
- pass through
- Weight
- 181.7 lb (82.4 kg) in total, sold as separate pieces
- Charges down to
- -4 °F (-20 °C)
- Runs down to
- -4 °F (-20 °C)
- Ingress rating
- IP54
- Noise
- 30 dBas the maker publishes it; conditions differ between makers
- App connection
- Wi-Fi, Bluetooth, cellular
- Warranty
- 5 years
Battery chemistry: LiFePO4 vs NMC batteries in power stations.
Price
$5,799 list price as of October 2026, the regular price on the maker's US store. That is $0.94 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 (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 |
|---|---|---|---|---|---|
| Goal Zero Yeti PRO 4000 | 3,994 Wh | 3,600 W | 7,200 W | 115.7 lb (52.5 kg) | $3,999.95$1.00 per Wh |
| 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 |
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 | Whole-Home Backup Power maker product page, checked
- EcoFlow DELTA Pro Ultra User Manual maker manual, checked
- EcoFlow US store product data, DELTA Pro Ultra maker store, checked
- EcoFlow UK store product data, DELTA Pro Ultra maker store, checked
- EcoFlow EU store product data, DELTA Pro Ultra maker store, checked
We read published specifications and do the math; we do not test products. The methodology states every formula on this page.