EcoFlow DELTA Pro 3
On one charge the EcoFlow DELTA Pro 3 runs a typical refrigerator about 29 hours, and runs an older furnace blower about 16 hours.
Buy it if you want one unit that runs a fridge and a furnace blower through a long outage, you need 240 V for a well pump, or you want to add extra batteries later.
Skip it if you only need a fridge, Wi-Fi and lights for a day, or you need to lift it into a car: it weighs 113.5 lb. What to buy instead.
Price: $2,799 on Amazon (checked November 1, 2026).
4,096 Wh battery (3,216 usable)4,000 W output8,000 W peak
$870 per usable kWh at Amazon prices checked November 1, 2026 ($2,799 for 3,216 usable Wh). Its EcoFlow DELTA Pro 3 Smart Extra Battery had no bare-pack listing on Amazon when we checked. How we work it out
Price checked November 1, 2026; Amazon shows today’s price. This is the listing for this model on its own, not a bundle.
Planning figures: a typical refrigerator averages about 83 W; an older furnace blower averages about 182 W. Yours may use less or more; the range is in the table below. How long other power stations run a refrigerator. A furnace blower is wired in: it needs an inlet or transfer switch fitted by an electrician.
- Wall recharge
- up to 1,800 W from the wall; 80% in 50 min claimed; testers measured closer to 3 hours
- Extra batteries
- Up to 2 extra batteries via one expansion port
- Recalls
- no CPSC recall names this exact model (screened 2026-10-09)
Check you have the right model. Not the same as: EcoFlow DELTA 3 Plus (a similar name, a different model: 1,024 Wh, 1,800 W); EcoFlow DELTA 3 (a similar name, a different model: 1,024 Wh, 1,800 W); EcoFlow DELTA Pro (a similar name, a different model: 3,600 Wh, 3,600 W). Read the model name on the unit’s label, not the box or the listing.
What independent tests measured
- Usable energy: 3,645 Wh in 1 test at loads of 3,650 W or more (The Solar Lab).
- Power it uses just to stay on: 37.5–48.8 W with the AC outlets on and nothing plugged in (Jasonoid (YouTube), HOBOTECH (YouTube)).
- What we use: 3,216 Wh usable at a typical 300 W load; every hours figure on this page counts the idle draw. The one rule we use.
How long will the EcoFlow DELTA Pro 3 run a fridge, CPAP, sump pump or furnace?
| Appliance | Average draw | On one charge | Starts it? |
|---|---|---|---|
| Fridge, new and efficient (ENERGY STAR) | 54 W | about 38 h | starts it |
| Fridge, typical | 83 W | about 29 h | starts it |
| Fridge, old or large | 130 W | about 21 h | starts it |
| CPAP, heated humidifier on | 55 W | about 4.6 nights (37 h) | starts it |
| Sump pump | 136 W | about 21 h (6.5–47 h) | starts it |
| Gas furnace blower, older single-speed | 182 W | about 16 h (4.2–22 h) | starts it |
| Gas furnace blower, variable-speed | 132 W | about 21 h | runs it |
| Well pump (240 V) | 65 W | about 34 h (11–64 h) | starts it |
One appliance at a time, from the 4,096 Wh battery, counting the power it uses just to stay on (3,216 Wh usable at a 300 W load). Fridge figures come from ENERGY STAR’s list of certified models, plus a 20 W allowance for the power station’s own draw and doors opening. CPAP with the humidifier on is the middle of the 30–100 W a CPAP with a heated humidifier draws; humidifier off is ResMed’s own 12 V figure for an AirSense 10 on ResMed’s DC cord (the EcoFlow DELTA Pro 3 has no car-style 12 V socket, only DC5521 and Anderson ports, so the table shows the CPAP on AC only). A night is 8 hours. Pumps and blowers switch on and off, so their average draw is far below their running watts; the hours are hours of outage, and the range runs from one that runs often to one that rarely does. A furnace blower is wired in: it needs an inlet or transfer switch fitted by an electrician.
Every appliance we track
The same numbers as a table
| Appliance | Typical average draw | Hours on one charge |
|---|---|---|
| Fridge | 83 W | about 29 h |
| Furnace blower, older single-speed | 182 W | about 16 h |
| Furnace blower, variable-speed | 132 W | about 21 h |
| CPAP | 55 W | about 37 h |
| Sump pump | 136 W | about 21 h |
| Well pump | 65 W | about 34 h |
| Wi-Fi router and modem | 24 W | about 54 h |
| Laptop | 52 W | about 38 h |
Who should skip the EcoFlow DELTA Pro 3, and what to buy instead
- You need a fridge, Wi-Fi and lights for about a day: EcoFlow DELTA 2 Max. 2,048 Wh, 2,400 W output, 120 V only, 50.7 lb; runs a typical fridge about 18 hours. $1,049 at Amazon
- You want the other 120 V and 240 V unit in this class: Anker SOLIX F3800. 3,840 Wh, 6,000 W output, 120 V and 240 V, 132.3 lb; runs a typical fridge about 23 hours. No Amazon listing for the unit on its own today.
- You want more battery in one box: Jackery Explorer 5000 Plus. 5,040 Wh, 7,200 W output, 120 V and 240 V, 134.5 lb; runs a typical fridge about 27 hours. No Amazon listing for the unit on its own today.
- Nothing you run needs 240 V: EcoFlow DELTA 3 Ultra Plus (3072Wh). 3,072 Wh, 3,600 W output, 120 V only, 74.3 lb; runs a typical fridge about 23 hours. $1,599 at Amazon
Prices checked November 1, 2026.
Photos from the listing for this model on its own.
The range behind that
This is a 4,096Wh battery with 4,000W of output, which means it gives back about 3,216 watt-hours at a typical household load (from independent tests) and can run anything drawing up to 4,000 watts at once.
It runs indoors and makes no fumes. Of the 16 household loads we track, it can run 16 for at least part of a day. It would keep a refrigerator going for 21–38 hours, from a hard-working fridge to an efficient one.
Figures from the maker’s own pages and manual, with a link beside each one.
Judged in: Which EcoFlow power station should you buy? (every EcoFlow model compared); The best portable power stations for home backup; The home-backup class: DELTA Pro 3, SOLIX F3800 Plus, Explorer 5000 Plus and the rest; Can a power station run a gas furnace? Yes, with the right hookup; Anker SOLIX F3800 vs F3800 Plus: the real differences (compared).
Compare it with its rivals
What it can run
| Load | Running / starting | Starts it? | Typical | Range |
|---|---|---|---|---|
| Wi-Fi router and modem | 15–40 W | starts it | about 54h | 44–63h |
| Phone charging and small USB devices | 10–40 W | starts it | about 72h | 54–80h |
| A few LED lights | 15–80 W | starts it | about 63h | 35–77h |
| Laptop and monitor | 45–150 W | starts it | about 38h | 19–60h |
| CPAP | 30–100 W | starts it | about 37h | 26–50h |
| Refrigerator/freezer | 100–700 W
starts at up to 2,900 W |
starts it | about 29h | 21–38h |
| Chest freezer | 80–500 W
starts at up to 2,200 W |
starts it | about 38h | 14–66h |
| Gas-furnace blower | 400–1,200 W
starts at up to 3,500 W |
starts it | about 16h | 4.2–22h |
| Sump pump | 700–1,500 W
starts at up to 4,500 W |
starts it | about 21h | 6.5–47h |
| Well pump | 700–2,000 W
starts at up to 6,000 W |
starts it | about 34h | 11–64h |
| Window air conditioner | 500–3,250 W
starts at up to 7,200 W |
starts it | about 4.8h | 1.4–15h |
| Microwave | 800–1,800 W | starts it | about 120 minutes of running time | short bursts |
| Coffee maker | 700–1,500 W | starts it | about 2 hours of running time | short bursts |
| Television | 40–250 W | starts it | about 37h | 13–66h |
| Garage door opener | 300–800 W
starts at up to 1,800 W |
starts it | about 4 hours of running time | short bursts |
| 12 V compressor fridge (camping) | 25–110 W
starts at up to 320 W |
starts it | about 59h | 37–73h |
Hours of use on one charge. Typical is the middle of our range for that appliance; the range runs from a hard-working unit to an efficient one. Short-burst loads (microwave, coffee maker, garage door) show running time at full power instead. “Starts it” means the peak output covers even a hard-starting one.
What a kilowatt-hour costs
| What | Amazon price | Usable energy | Per usable kWh |
|---|---|---|---|
| The station | $2,799 | 3,216 Wh | $870 |
Per usable kWh = Amazon price divided by usable energy: what the unit gives back at a typical 300 W household load, counting the power it uses just to stay on. The same rule runs everywhere on this site (how). Station price checked November 1, 2026; we show prices only on the day they were checked and keep no price history. The maker’s pack, the EcoFlow DELTA Pro 3 Smart Extra Battery, had no bare-pack listing on Amazon when we checked; only bundles with a station.
Specifications
- Battery
- 4,096 Wh (about 3,216 Wh usable, from tests)
- Continuous output
- 4,000 W
- Peak output
- 8,000 W
- Output voltage
- 120/240 V
- Wall recharge
- up to 1,800 W from the wall; 80% in 50 min claimed; testers measured closer to 3 hours source
- Solar input
- up to 2,600 W (XT60 and XT60i)
Manual: High-PV port up to 1,600 W (30-150 V, 15 A) and Low-PV port up to 1,000 W (11-60 V, 20 A). source - Extra batteries
- Up to 2 extra batteries via one expansion port source
- Warranty
- 5 years (3-year standard warranty plus 2-year extended warranty available upon EcoFlow App registration) source
- Weight
- 113.5 lb (51.5 kg) source
Maker page: EcoFlow product page, read 2026-09-29
Manual: EcoFlow manual
Living with it
What the maker’s own pages and manual say about owning this unit, and what owners report in public. Each line links to where it was read. Nothing here is our own test.
- Switchover when the grid drops
- 10 ms (maker-stated standby UPS transfer time); real-world testing found the transfer can still trip sensitive electronics despite this spececoflow.ie
- Pass-through charging
- Yes. On a US wall outlet the manual limits bypass (pass-through) mode to 15 A for 3 hours, then 12 A.ecoflow.ie
- Wall recharge
- 0→80% in ~50 minutes (maker claim, likely reflecting max combined multi-charge combo up to 7,000W, not AC-only). Manual lists the standard AC Input Socket at just 15A (~1,800W at 120V), which is far slower than the headline figure. Independent testers measured a full AC-only recharge at roughly 2h54m to ~3 hours in practice.us.ecoflow.com
- AC input
- Standard AC Input Socket (wall outlet): 100-240V, 15A max (~1,800W at 120V US). Separate EcoFlow-proprietary AC POWER IN/OUT port charges at 100/200V-120/240V, 20A (up to ~4,800W at 240V), used in combination with solar/other inputs for the maker's faster multi-charge combos.ecoflow.ie
- USB-C
- 100W max per USB-C port (PD3.0), 200W total across both USB-C portsecoflow.ie
- Outlets and ports
- US AC output: 4x NEMA 5-20R (120V/20A), 1x NEMA TT-30R (120V/30A), 1x NEMA L14-30R (120/240V/16.7A), 1x NEMA 6-20R (240V/16.7A). USB: 2x USB-A QC3.0 (18W each, 36W total), 2x USB-C PD3.0 (100W each, 200W total). 12V DC output 378W total via DC5521 (5A max) and Anderson (30A max) ports. Plus: 1x EcoFlow-proprietary AC POWER IN/OUT port, 1x High-PV XT60 solar input, 1x Low-PV/Car XT60i input, 1x REMOTE RJ45 port, 1x Extra Battery port. No dedicated 12V cigarette-lighter-style output port.ecoflow.ie
- Noise
- As low as ~30 dB (maker claim, presumably idle/low-fan-speed). Owner testing found it quiet enough under loads up to ~2,000W to run near CPAP machines at night, but fan noise becomes a noticeable high-pitched whine at higher loads.ecoflow.com
- Charges between
- 0°C to 45°C (32°F to 113°F)ecoflow.ie
- Runs between
- -10°C to 45°C (14°F to 113°F)ecoflow.ie
- Cycle life
- 80%+ State of Health retained after 4,000 cycles at 0.5C/0.5C charge/discharge rate at 25°C (77°F)ecoflow.ie
- Low-load shutoff
- AC output auto-shuts-off after an idle timeout (no meaningful load detected for a period), adjustable in the EcoFlow app and settable to "never" for critical continuous loads like refrigerators. This is an idle-timer behavior; the manual does not state an exact default timeout duration or a specific low-wattage threshold that triggers it.ecoflow.ie
- App
- EcoFlow app (iOS/Android) — companion app for device binding, monitoring, and firmware updates; no distinct branded app name is used beyond "EcoFlow app." EcoFlow PowerInsight is a separate, optional energy-management layer that can integrate with it.ecoflow.ie
- Expansion
- One proprietary "Extra Battery" port supports up to 2 EcoFlow DELTA Pro 3 Smart Extra Batteries for capacity expansion (4096Wh base, expandable well beyond via extra batteries/parallel units); the port is backwards-compatible with the older DELTA Pro Smart Extra Battery.ecoflow.ie
- Size
- 16.16 x 13.43 x 27.28 in (W x D x H)ecoflow.ie
- Weight
- 113.54 lb (51.5 kg)ecoflow.ie
- Warranty
- 3-year standard warranty plus a 2-year extended warranty (5 years total) if the unit is registered in the EcoFlow app.us.ecoflow.com
What owners report, from public threads and long-term reviews; not our own testing.
- Reviewers used the unit as their primary backup power source through multiple overnight outages, running a refrigerator, TV, and space heater simultaneously without failure.outdoorgearlab.com
- In real-world testing a full AC recharge took roughly 3 hours, and the unit ran quietly enough under typical nighttime loads (CPAP machines, heaters) that fan noise went unnoticed, though it became noticeable near maximum output.outdoorgearlab.com
- One long-term tester experienced repeated software-triggered false 'electrical short' warnings and shutdowns over about 5 weeks of use, each requiring a manual BMS reset (holding the power button for 10 seconds); a firmware update appeared to resolve the recurring error afterward.cleantechnica.com
- At about 114 lb with a telescoping handle described as wobbly when extended, reviewers say the unit is 'movable' rather than truly portable, and recommend a loading ramp or a second person to get it into a vehicle.robbsutton.com
- Getting the advertised 2,600W of combined solar input in practice requires two separate arrays wired to the two ports' different voltage specs; one reviewer advises most users should plan around roughly 1,600W of realistic solar input instead.robbsutton.com
- When running on pass-through/bypass power (plugged into the grid while also powering loads), output is effectively capped around 1,800W in the US — consistent with the manual's own Bypass Mode spec of 100-120V~15A — and one tester found an AC compressor's startup surge (over 2,000W) tripped a shutdown even though the unit handles 4,000W+ fine when running off battery alone.cleantechnica.com
- A tester reported the UPS/EPS switchover uses a 'floating ground' when running on battery power, which caused a desktop PC's power supply to click off during at least one transfer despite the advertised <10ms switchover time; the suggested workaround is placing a separate UPS between sensitive electronics and the unit.robbsutton.com
- Despite the 4,000W rating, a 3-ton central AC unit fitted with a soft-start kit still triggered the unit's overload protection during one reviewer's test, raising doubts about its suitability as whole-home backup for large HVAC loads.robbsutton.com
- The unit cannot output both 120V and 240V simultaneously, which one reviewer flagged as a limitation for some household wiring setups.thesolarlab.com
- AC recharge in practice ran somewhat longer than advertised in one test (about 2 hours 54 minutes versus a claimed 2 hours 20 minutes), and the display's 'time remaining' estimate stayed inaccurate for an extended stretch near the end of the charge.thesolarlab.com
What independent testers measured
We do not test units ourselves. These are figures published by testers who did, with the maker’s claim beside them where the tester gave it.
| Measurement | Result | Tester |
|---|---|---|
| Inverter efficiency, measured | About 89% efficiency sustaining a near-maximum (~3,650W) load for 60 minutes | The Solar Lab |
| Wall charge, empty to full | About 2 hours 54 minutes (174 min) full AC charge, tester-measured (maker: 2 hours 20 minutes (140 min) advertised) | The Solar Lab |
| Also measured | Surge test: handled 5,100W for nearly a minute before shutting down as load approached 6,000W | The Solar Lab |
| Also measured | Qualitative noise: quiet under a 2,000W load, more noticeable at higher loads (no dB figure given) | The Solar Lab |
| Also measured | Pass-through charging tested and worked correctly | The Solar Lab |
| Weight, measured | 113 lb, noted by the tester as heavier than the original DELTA Pro | The Solar Lab |
| Usable capacity, measured | 3,790 Wh usable out of the advertised 4,096 Wh rated capacity (>93% efficiency) (maker: 4,096 Wh advertised) | OutdoorGearLab |
| Wall charge, empty to full | Never took more than 3 hours to fully charge in testing (~3.2 hr average) | OutdoorGearLab |
| Weight, measured | 114.1 lb, listed by OutdoorGearLab as a measured spec in its comparison table | OutdoorGearLab |
| Charging input, measured | Charging input peaked above 1,600 W; it never reached the advertised 1,800 W (maker: 1,800 W charging input advertised) | OutdoorGearLab |
| Also measured | Ran overnight with CPAP machines and heaters without testers ever noticing fan noise | OutdoorGearLab |
| Also measured | Average measured charging speed of 1,293 Wh/hr | OutdoorGearLab |
- Scored 81/100, ranked #2 of 14 power stations tested, and named Best for Home Backup for its power output and expansion capability despite its weight and price. (Best for Home Backup) OutdoorGearLab
- A solid, worthy power station overall, but an incremental update that existing DELTA Pro owners have little compelling reason to upgrade to. The Solar Lab
- In a head-to-head against the Anker SOLIX F3800, called the DELTA Pro 3 the better fit for moderate power needs and portability/cycle-life priorities, while the F3800 wins for the heaviest home-backup demands. The Solar Lab
Recall screen
No published recall names this exact model
The single EcoFlow recall (26010) names DELTA Max 2000, model EFD310. DELTA Pro 3 is not named.
This check cannot clear your own unit. Most recalls cover only certain serial numbers. Read the model and serial number off the label on the unit itself, then check the maker's recall page before you use it, sell it, or buy it.
How we know the screen was not simply blind
Finding nothing only means something if the search could have found something. So we searched the same records for this brand and got 1 recall. That proves the screen can see this brand, so finding nothing for this model is a real result.
[26010 2025-10-09] EcoFlow Technology Recalls Delta Max 2000 Power Stations Due to Risk of Serious Burn Injury and Fire Hazard
Buying the right one
Verified listing — the unit on its own
ASIN B0D14FMFZD · $2,799.00 when checked on November 1, 2026 · purchasable
Title states 4096Wh and 4000W, matching the maker's figures exactly. Prices change: Amazon shows today’s price.
Listings we turned down
Searching for this model returns bundles, sibling models and refurbished units alongside the bare product. These are the ones we checked and did not link, with the reason.
| Listing | Price | Why it is not this product |
|---|---|---|
| EF ECOFLOW Power Station 4096Wh DELTA Pro 3 with 400W Portable Solar Panel | 120 | $3,099 | Listing is a bundle (solar panel or kit), not the bare base unit our specifications describe. |
| EF ECOFLOW DELTA Pro 3 Solar Generator 4096Wh with 2X400W Solar Panels | 120/240 | $3,499 | Listing is a bundle (solar panel or kit), not the bare base unit our specifications describe. |
| EF ECOFLOW Solar Generator 3.6KWh DELTA Pro with 400W Portable Solar Panel | 23% | $2,399 | Listing is a bundle (solar panel or kit), not the bare base unit our specifications describe. |
| EF ECOFLOW Portable Power Station 3600Wh DELTA Pro, 120V 3600W AC Output | 2.7H | $1,799 | Listing is a different model, not this one. |
| EF ECOFLOW Delta 3 Ultra 3072Wh Solar Generator with 400W Solar Panel | Portable | $1,799 | Listing is a bundle (solar panel or kit), not the bare base unit our specifications describe. |
Official accessories
These are the maker’s own words. “Sold on the same page” is not the same claim as “works with this model”.
- DELTA Pro 3 Smart Extra Battery
Maker’s wording: named extra-battery model
Maximum quantity NOT stated on this page. - 400W Portable Solar Panel
Maker’s wording: named solar option - 500W Portable Solar Kit
Maker’s wording: 'contains 125W Bifacial Modular Solar Panels, 4-piece kit' - 220W Solar Panels
Maker’s wording: referenced in bundle options - Smart Generator 4000 (Dual Fuel)
Maker’s wording: named companion generator - Home Backup Kit: Transfer Switch professional install
Maker’s wording: named accessory - Smart Home Panel 2 professional install
Maker’s wording: named accessory