Ecoflow DELTA 3 Portable Power Station
Estimated Delivery Between
and .
Order within to get it by the earliest date.
Free Shipping In The USA | Call Us: 877-556-3347
Free Shipping In The USA | Call Us: 877-556-3347
Share it with us now and we will beat it. Get the best deal online, guaranteed!
and .
Order within to get it by the earliest date.
Build Your Perfect Off-Grid Rig With Our System Calculator
Visit CalculatorThe EcoFlow DELTA 3 is a high-capacity, ultra-reliable portable power station built to handle everything from emergency backup to outdoor adventures and off-grid living. With a robust 4000W output and 3840Wh capacity, it delivers whole-home energy in a compact, fast-charging design. Whether you're powering tools, appliances, or your home during an outage, DELTA 3 is your go-to power solution.

Massive Output Capacity
Power heavy-duty appliances and tools with 4000W AC output (8000W surge) for whole-home or jobsite use.
Ultra-Fast Recharge
Fully recharge via AC or solar in as fast as 1.4 hours with EcoFlow's patented X-Stream technology.
Expandable Battery Options
Scale your power to up to 48kWh by connecting with EcoFlow expansion batteries.
Smart Energy Management
Control and monitor usage from the EcoFlow app with real-time data and settings.
Long Lifespan LiFePO4 Battery
Rated for 3500+ cycles to 80% capacity—built to last over a decade of daily use.


Everything you need is included with your product.


| Category | Specifications |
| Weight | 12.5 kg | 27.6 lbs |
| Dimensions (W x D x H) | 202 × 397.6 × 283.6 mm | 8.0 × 15.7 × 11.2 in |
| Operating Altitude | < 2000 m (6562 ft) |
| Overvoltage Category | II |
| Pollution Degree | 2 |
| Output | Pure sine wave, total 1800W, surge 3600W |
| DC Output Port (USB-A) | 5V⎓2.4A / 9V⎓2A / 12V⎓1.5A, 18W Max per port, total 36W |
| DC Output Port (USB-C) | 5V / 9V / 12V / 15V⎓3A Max, 20V⎓5A Max, 100W Max per port, total 200W |
| 12V DC Output Port | Total 126W: DC5521: 12.6V⎓3A, Cigarette Lighter: 12.6V⎓10A |
| AC Input Socket | 100-120V~15A (50Hz/60Hz) |
| DC Input Port (XT60) Solar Input | 11-60V⎓15A, 500W Max, Car Input: 12V⎓8A Max |
| Rated Capacity | 1024Wh (51.2V⎓20Ah) |
| Cell Chemistry | LFP (LiFePO₄) |
| Cycle Life | 80%+ capacity after 4000 cycles |
| Protection Type | Over Voltage, Overload, Over Temperature, Short Circuit, Low Temperature, Low Voltage, Overcurrent |
| Extra Battery | The DELTA 3 supports: EcoFlow DELTA 3 Smart Extra Battery (1kW) | EcoFlow DELTA 2 Smart Extra Battery (2kWh) | EcoFlow DELTA Max Smart Extra Battery (2kWh) | EcoFlow DELTA 2 Max Smart Extra Battery (2kW) | EcoFlow DELTA Pro 3 Smart Extra Battery (4kWh) |
| Optimal Operating Temperature | 20°C-30°C (68°F-86°F) |
| Charge Temperature | 0°C-45°C (32°F-113°F) |
| Discharge Temperature | –10°C to 45°C (14°F-113°F) |
| Storage Temperature | –10°C to 45°C (optimal: 20°C to 30°C) |
How long does the DELTA 3 take to charge?
It can charge from 0–80% in under 1.4 hours using AC power thanks to EcoFlow’s X-Stream fast charging.
Can I use it while it’s charging?
Yes, DELTA 3 supports pass-through charging, so you can power your devices while it recharges.
Is it expandable?
Yes, it supports battery expansion up to 48kWh when paired with additional EcoFlow batteries.
What appliances can the DELTA 3 run?
With its 4000W output (8000W surge), the DELTA 3 can power heavy appliances like refrigerators, microwaves, AC units, power tools, and even some EVs.
Can I use third-party solar panels to charge it?
Yes, as long as they meet the input specs (11–60V, 15A, up to 1600W), third-party solar panels are compatible with the DELTA 3.
Does the DELTA 3 have Wi-Fi or Bluetooth?
Yes, it includes both Wi-Fi and Bluetooth for seamless app control via the EcoFlow app—even when you're off-grid.
Shipping is FAST & FREE across the US. Read our full Shipping Policy here.
We offer market leading Easy 30 Day Returns. Read more about our Returns Policy here.
We get it. You've got a lot of choices when it comes to online retailers. Here's why we think you should shop with us at Off-Grid Source.
Trusted By 10,000+ Customers. See All Reviews.
I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!
Bruce D.
I am always hesitant to buy things at places I have never shopped... I want to give a shout out to Manny who with great patience and knowledge helped me get my orders... I felt valued as a customer and I will definitely be back in the future. I highly recommend them, they make you feel like family.
Jennene A.
I'm about to go off grid. I called Manny, he walked me through everything so I could truly understand what I needed and never tried to upsell me. He was honest and made a customer for life.
Ray B.
I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!
Roger V.
I have been talking with Manny the owner... He has not only helped me design a system but he's been assisting with the install and components. I am super pleased so far with the assistance.
Jeff S.
We added 2 more batteries to our current set up. Pleased with the customer service from Off-Grid Source! Will be back!
Jason
Very fast response times. Very professional. I highly recommend!
Ray W.
Sign up for emails and get exclusive offers, new product drops, and expert advice to help you build the right solar setup with confidence.