EcoFlow DELTA 3
On one charge the EcoFlow DELTA 3 runs a typical refrigerator about 9.5 hours, and runs an older furnace blower about 4.6 hours.
Buy it if you want to add an extra battery later (up to 5 kWh in all).
Skip it if you will never add a battery. The EcoFlow DELTA 3 Classic has the same 1,024 Wh battery and 1,800 W output, so it runs a fridge just as long, for $100 less today. What to buy instead.
Price: $599 on Amazon (checked November 1, 2026).
1,024 Wh battery (863 usable)1,800 W output3,600 W peak
$694 per usable kWh at Amazon prices checked November 1, 2026 ($599 for 863 usable Wh). 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 1,500 W from the wall
- Extra batteries
- Yes, up to 5 kWh with an EcoFlow Extra Battery
- 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 with the same battery and output); EcoFlow DELTA Pro 3 (a similar name, a different model: 4,096 Wh, 4,000 W); EcoFlow DELTA 3 Classic (1024Wh) (the same battery and output); EcoFlow DELTA 2 (EFD330) (the same battery and output). Read the model name on the unit’s label, not the box or the listing.
How long will the EcoFlow DELTA 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 14 h | starts it |
| Fridge, typical | 83 W | about 9.5 h | starts it |
| Fridge, old or large | 130 W | about 6.3 h | starts it |
| CPAP, heated humidifier on | 55 W | about 1.6 nights (14 h) | starts it |
| CPAP, humidifier off, from the 12 V car socket | 11.2 W | about 7.0 nights | starts it |
| Sump pump | 136 W | about 6.1 h (1.7–19 h) | may not start a hard-starting one |
| Gas furnace blower, older single-speed | 182 W | about 4.6 h (1.1–6.8 h) | starts it |
| Gas furnace blower, variable-speed | 132 W | about 6.3 h | runs it |
| Well pump (240 V) | 65 W | — | needs 240 V |
One appliance at a time, from the 1,024 Wh battery, counting the power it uses just to stay on (863 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. 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. It has no 240 V output, so it cannot run a 240 V well pump (needs 240 V); a 120 V well pump is a different case, so check the pump’s label.
Every appliance we track
The same numbers as a table
| Appliance | Typical average draw | Hours on one charge |
|---|---|---|
| Fridge | 83 W | about 9.5 h |
| Furnace blower, older single-speed | 182 W | about 4.6 h |
| Furnace blower, variable-speed | 132 W | about 6.3 h |
| CPAP | 55 W | about 14 h |
| Sump pump | 136 W | about 6.1 h (may not start a hard-starting one) |
| Wi-Fi router and modem | 24 W | about 25 h |
| Laptop | 52 W | about 14 h |
Who should skip the EcoFlow DELTA 3, and what to buy instead
- You will never add an extra battery: EcoFlow DELTA 3 Classic (1024Wh). 1,024 Wh, 1,800 W output, 120 V only, 26.7 lb; runs a typical fridge about 9.5 hours. $499 at Amazon
- You want more solar input on the same battery: EcoFlow DELTA 3 Plus. 1,024 Wh, 1,800 W output, 120 V only, 27.6 lb; runs a typical fridge about 9 hours. $719 at Amazon
- You want twice the battery: 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
Prices checked November 1, 2026.
Photos from the listing for this model on its own.
The range behind that
This is a 1,024Wh battery with 1,800W of output, which means it gives back about 863 watt-hours at a typical household load (estimated) and can run anything drawing up to 1,800 watts at once.
It runs indoors and makes no fumes. Of the 16 household loads we track, it can run 12 for at least part of a day.
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); Which EcoFlow DELTA 3? The whole family, judged against one plan; EcoFlow DELTA 3 vs DELTA 3 Plus: which one to buy.
What it can run
| Load | Running / starting | Starts it? | Typical | Range |
|---|---|---|---|---|
| Wi-Fi router and modem | 15–40 W | starts it | about 25h | 17–34h |
| Phone charging and small USB devices | 10–40 W | starts it | about 49h | 25–68h |
| A few LED lights | 15–80 W | starts it | about 34h | 13–60h |
| Laptop and monitor | 45–150 W | starts it | about 14h | 5.6–31h |
| CPAP | 30–100 W | starts it | about 14h | 8–22h |
| Chest freezer | 80–500 W
starts at up to 2,200 W |
starts it | about 14h | 3.8–39h |
| Sump pump | 700–1,500 W
starts at up to 4,500 W |
may not start a hard-starting one | about 6.1h | 1.7–19h |
| Microwave | 800–1,800 W | starts it | about 30 minutes of running time | short bursts |
| Coffee maker | 700–1,500 W | starts it | about 36 minutes of running time | short bursts |
| Television | 40–250 W | starts it | about 14h | 3.4–39h |
| Garage door opener | 300–800 W
starts at up to 1,800 W |
starts it | about 66 minutes of running time | short bursts |
| 12 V compressor fridge (camping) | 25–110 W
starts at up to 320 W |
starts it | about 30h | 14–51h |
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 | $599 | 863 Wh | $694 |
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. Extra battery: EcoFlow lists several extra batteries that fit (DELTA 3, DELTA Pro 3, DELTA 2, DELTA 2 Max packs), so there is no one pack to price.
Specifications
- Battery
- 1,024 Wh (about 863 Wh usable, estimated)
- Continuous output
- 1,800 W
- Peak output
- 3,600 W
- Output voltage
- 120 V
- Wall recharge
- up to 1,500 W from the wall source
- Solar input
- up to 500 W source
- Extra batteries
- Yes, up to 5 kWh with an EcoFlow Extra Battery source
- Warranty
- 5 years source
- Weight
- 27.6 lb (12.5 kg) source
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
- Under 10 ms UPS switchover (maker spec table)us.ecoflow.com
- USB-C
- 2 USB-C ports, 100 W max (maker spec table)us.ecoflow.com
- Outlets and ports
- 6 AC outlets (1,800 W total, 3,600 W surge); 2 USB-A (18 W max); 2 USB-C (100 W max); car outlet (126 W max)us.ecoflow.com
- Noise
- Under 30 dB at 600 W, under 40 dB at 1,200 W (maker spec table)us.ecoflow.com
- Expansion
- Expandable to 5 kWh with a DELTA 3, DELTA Pro 3, DELTA 2 or DELTA 2 Max Extra Battery (maker page)us.ecoflow.com
- Warranty
- 5 years (maker spec table)us.ecoflow.com
Recall screen
No published recall names this exact model
No CPSC recall in the 2026-10-09 recall list names this exact model (1 recall names the brand; none names this model).
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.
Use the CPSC recall search.
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.
Buying the right one
Verified listing — the unit on its own
ASIN B0DCBYMC9D · $598.99 when checked on November 1, 2026 · purchasable
Title states 1024Wh and 1800W, 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 Portable Power Station Delta 3 Classic, 1024Wh 1800W AC | 3600W Surge | $499 | Listing is the 'DELTA 3 Classic' variant, which is a different product from the 'DELTA 3' the maker lists. |
| EF ECOFLOW DELTA 3 Max Portable Power Station, 2048Wh LFP Battery, 2400W | 3400W | $899 | Listing is the 'DELTA 3 Max' variant, which is a different product from the 'DELTA 3' the maker lists. |
| EF ECOFLOW Solar Generator Delta 3 Classic with 220W Solar Panel, 1024Wh | 1800W | $699 | Listing is a bundle (solar panel or kit), not the bare base unit our specifications describe. |
| EF ECOFLOW Delta 3 Ultra 3072Wh Portable Power Station, 3600W AC Output | (Surge | $1,299 | Listing is the 'DELTA 3 Ultra' variant, which is a different product from the 'DELTA 3' the maker lists. |
| EF ECOFLOW DELTA 3 MAX Portable Power Station with 400W Solar Panel, 2048Wh | 34 | $1,399 | Listing is a bundle (solar panel or kit), not the bare base unit our specifications describe. |