Home Power Facts Portable power station
EcoFlow DELTA Pro 3
The EcoFlow DELTA Pro 3 has 4,096 Wh rated capacity (about 3,650 Wh usable, measured) and a 4,000 W inverter. It can run all 29 of the household loads (120 V and 240 V) we track.
- Rated
- 4,096 Wh
- Usable (measured)
- 3,650 Wh
- AC output
- 4,000 W
- Surge
- 8,000 W
Specs
| Rated capacity | 4,096 Wh[source]Source noteManual: 'Rated Capacity | 4096Wh 51.2V⎓ 80Ah'. |
|---|---|
| Usable capacity (AC) | 3,650 Wh[source]Source noteThe Solar Lab: ran a 3,650 W load for '60 minutes at this near-maximum load, translating to about 89% efficiency' (~3,650 Wh, calculated from their load and runtime; 89% of 4096 = 3,645 Wh). Voltage (120/240 V) not stated. Other result: OutdoorGearLab measured 3,790 Wh AC (93%) (outdoorgearlab.com best power station roundup). WhatPowerFor lists 3,950 Wh but its method is unclear and it was not used. |
| Battery chemistry | LiFePO4[source]Source noteManual: 'Cell Chemistry | LFP (LiFePO4)'. |
| AC continuous output | 4,000 W[source]Source noteManual (US): 'Discharge Only: 120V~60Hz 4000W total (surge 8000W); 120/240V~60Hz 4000W total (surge 8000W)'. Product page: '4000W, 6000W with X-boost'. |
| AC surge output | 8,000 W[source]Source noteManual: '4000W total (surge 8000W)'. Product page: 'AC Surge Output 8000W'. |
| AC outlets | 7[source]Source noteManual (US): '4× NEMA 5-20R, 120V~20A; 1× NEMA TT-30R, 120V~30A' (low-voltage) and '1× NEMA L14-30R, 120V/240V~16.7A; 1× NEMA 6-20R, 240V~16.7A' (split phase). The FAQ says the 120 V group and the 240 V group are switched separately and cannot output at the same time. |
| UPS / EPS switchover | 10 ms[source]Source noteManual: 'The power station acts as a standby UPS with a transfer time of 10 ms.' |
| Expandable | Yes[source]Source noteManual: 'This power station supports connecting up to 2 extra batteries to expand capacity.' |
| Max expanded capacity | 12,288 Wh[source]Source noteProduct page: 'Expanable Capacity (Single Unit) 12kWh (2 × DP3 Extra Battery)'. 4096 + 2 × 4096 = 12288 Wh. The '48kWh' figure needs 3 units, 3 extra batteries, 3 generators and a Smart Home Panel 2. |
| AC charging | 1,800 W[source]Source noteManual (US) AC input: 'Charge Only: 100-240V~15A 50/60Hz'. 1800 W is 15 A × 120 V (calculated, not stated as watts). At 240 V the same 15 A rating allows more; the EcoFlow FAQ says the US grid port 'only supports AC 120V 2000W charging', and the separate AC POWER IN/OUT port accepts '100/200V-120/240V~20A'. |
| Max solar input | 2,600 W[source]Source noteProduct page: 'Solar Charging Input 2600W total, 2 ports'. |
| Cycle life | 4000 cycles to 80%[source]Source noteManual: 'The battery maintains 80%+ SoH (State of Health) after 4000 cycles at 0.5C/0.5C at 25°C (77°F)'. |
| Weight | 113.5 lb[source]Source noteManual: 'Net. Weight | Approx. 51.5 kg (113.54 lb)'. |
| Warranty | 5 years[source]Source noteUS warranty policy: 'DELTA Pro 3 | 5 years'. Product page: '3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration'. |
| Idle draw | Not publishedSource noteNo independent idle-draw measurement found (searched The Solar Lab, OutdoorGearLab, Bob Vila, TechRadar on 2026-10-19). |
| List price | $3,299[source]Source noteRegular (compare-at) price $3,299 for the bare 'DELTA Pro 3' variant, sale price $2,799, seen 2026-10-19. |
Verified 2026-10-19. Notes under a value explain conflicting sources.
What it can run
| Appliance | Runs it? | Runtime |
|---|---|---|
| Refrigerator | Yes | 2.3 days |
| Chest freezer | Yes | 6.2 days |
| CPAP (no humidifier) | Yes | 3.4 days |
| CPAP with heated humidifier | Yes | 40.6 h |
| Sump pump (1/3 hp) | Yes | 5.6 h |
| Sump pump (1/2 hp) | Yes | 3.9 h |
| Gas furnace blower (1/2 hp) | Yes | 6.6 h |
| Window AC (5,000 BTU) | Yes | 10.5 h |
| Microwave | Yes | 4.1 h |
| Coffee maker | Yes | 3 h |
| Laptop charger | Yes | 2.5 days |
| Phone charger | Yes | 7.6 days |
| Wi-Fi router / modem | Yes | 10.1 days |
| TV (LED, 32-55 inch) | Yes | 2.2 days |
| LED light bulb (each) | Yes | 16.9 days |
| Space heater | Yes | 2.4 h |
| Well pump (1/2 hp, 240 V) | Yes | 4.2 h |
| Oxygen concentrator (home, 5 L/min) | Yes | 10.4 h |
| Starlink (Standard kit) | Yes | 41.5 h |
| Desktop PC + monitor | Yes | 40.6 h |
| Electric blanket (queen) | Yes | 14 h |
| Box fan (20 inch) | Yes | 44 h |
| Dehumidifier (35-50 pint) | Yes | 7.5 h |
| Portable air conditioner (8,000-10,000 BTU) | Yes | 3 h |
| Electric kettle | Yes | 2.4 h |
| Portable induction cooktop (single burner) | Yes | 2 h |
| Air fryer | Yes | 2.4 h |
| Mini fridge (compact, ~3 cu ft) | Yes | 6.1 days |
| Garage door opener | Yes | 5.1 h |
Runtime = 3,650 Wh usable (independently measured) ÷ the appliance's average draw. Fridges and freezers average their daily energy use; everything else counts as running the whole time. "No" means the load exceeds this model's continuous output or surge rating. Methodology.
Recharge with solar
Solar input: 11–60 V, 20 A, up to 2,600 W (XT60i).Low-PV port is 'XT60i Port' (EcoFlow Solar to XT60i cable); High-PV port is 'XT60 Port' (EcoFlow Solar to XT60 cable).Manual: 'The power station supports 2 PV input ports (High-PV and Low-PV).' Panels that fit, fastest first, one panel at a time; days use Dallas, TX's sun (5.4 peak hours a day on average, 4.37 in December). Two or more panels charge faster, up to this station's 2,600 W input limit.
| Panel | Peak-sun hours to full | Days to full, Dallas |
|---|---|---|
| EcoFlow 400W Portable Solar Panel | 13.7 h | 2.5 daysDecember: 3.1 days |
| Anker SOLIX PS400 Portable Solar Panel (400W) | 13.7 h | 2.5 daysDecember: 3.1 days |
| BLUETTI PV350 (350W Solar Panel) | 15.6 h | 2.9 daysDecember: 3.6 days |
| EcoFlow NextGen 220W Bifacial Portable Solar Panel | 24.8 h | 4.6 daysDecember: 5.7 days |
| Jackery SolarSaga 200W Solar Panel | 27.3 h | 5.1 daysDecember: 6.2 days |
| Anker SOLIX PS200 Portable Solar Panel (200W) | 27.3 h | 5.1 daysDecember: 6.2 days |
| BLUETTI PV200 (200W Portable Solar Panel) | 27.3 h | 5.1 daysDecember: 6.2 days |
| Renogy E.Flex 200W N-Type Portable Solar Panel (RPP200EF-SE-G2-US) | 27.3 h | 5.1 daysDecember: 6.2 days |
| BougeRV New 200W Portable Solar Panel (FS200W) | 27.3 h | 5.1 daysDecember: 6.2 days |
| Rich Solar MEGA 200 Portable Briefcase Solar Panel (RS-X200B) | 27.3 h | 5.1 daysDecember: 6.2 days |
| Jackery SolarSaga 100 Air | 54.6 h | 10.1 daysDecember: 12.5 days |
| Zignes 100W Solar Panel (sold by DJI Store) | 54.6 h | 10.1 daysDecember: 12.5 days |
Real-world watts = panel rating capped by this input's current limit (× the panel's voltage at max power) and maximum solar input, × 75%. Peak-sun hours to full = rated capacity (4,096 Wh, since charging fills the whole battery) ÷ real-world watts; days = those hours ÷ peak sun hours per day. Sunnier and cloudier cities are on each panel's page; full method in the methodology.
With expansion batteries
Official add-on batteries for the EcoFlow DELTA Pro 3, and how long a refrigerator (66.7 W average, from 1.6 kWh a day) runs with them attached.
| Setup | Usable capacity | Refrigerator runtime |
|---|---|---|
| DELTA Pro 3 + 1 × DELTA Pro 3 Smart Extra BatteryUp to 2 on one DELTA Pro 3Check price on EcoFlow | 6,927 Wh (est.) | 4.3 days |
| DELTA Pro 3 + 2 × DELTA Pro 3 Smart Extra Battery | 10,204 Wh (est.) | 6.4 days |
| DELTA Pro 3 + 1 × DELTA Pro Smart Extra BatteryUp to 2 on one DELTA Pro 3Check price on EcoFlow | 6,530 Wh (est.) | 4.1 days |
| DELTA Pro 3 + 2 × DELTA Pro Smart Extra Battery | 9,410 Wh (est.) | 5.9 days |
Usable capacity = this station's usable capacity + each battery's independently measured usable capacity, or 80% of its rated capacity where no test exists ("est."). Runtime uses the same formula as everywhere else on the site. Battery specs come from the brand's official pages. Other EcoFlow batteries that don't work with the DELTA Pro 3: DELTA 2 Smart Extra Battery, DELTA 2 Max Smart Extra Battery, RIVER 3 Plus Smart Extra Battery (EB300), RIVER 3 Plus Smart Extra Battery (EB600), DELTA 3 Series Smart Extra Battery, DELTA Pro Ultra Series Smart Extra Battery.