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The EcoFlow DELTA 3 Is Your Easy-To-Carry Portable Power Backup Buddy
The EcoFlow DELTA Pro 3 is the next evolution of home emergency and portable backup power. With outstanding expandable capacity, ultra-fast charging, and seamless integration options, it’s built to keep your life running — whether you’re at home, on the road, or completely off the grid.
Designed to handle a variety of power needs, the DELTA 3 offers reliable performance with a stout 1024Wh LiFePO₄ battery, multiple output options, and industry-leading durability.
Whether you're camping, working remotely, or facing an unexpected power outage at home, the DELTA 3 ensures you have the energy you need when and where you need it.
Reasons To Buy The EcoFlow DELTA 3
The DELTA 3 Has Multiple Outputs That Can Charge Up to 11 Devices
Equipped with AC, USB-A, USB-C, and 12V DC ports, the DELTA 3 charges up to 10 devices simultaneously. Perfect for home, camping, or mobile offices, it simplifies your power needs with unmatched versatility.
Quick Solar Charging With Solar Panels Supporting Up to 500W
Choose between solar panels, AC outlets, or car charging to power up the DELTA 3 in just a few hours. Its fast recharging ensures you’re always ready for your next adventure or prepared for sudden outages.
Durable Battery Built to Last for Years, Providing Over 4000 Cycles at 80% Capacity
Built to last, the DELTA 3 offers over 4000 cycles at 80% capacity. Reliable and durable, it’s a power station designed to deliver consistent energy for years without compromising performance.
Portable and Compact for Easy Carrying and Storage
Weighing just 27.6 lbs and featuring a compact design, the DELTA 3 is easy to carry and store. Whether at home or outdoors, it’s a lightweight solution for powerful, portable energy.
DELTA 3 Expansion Battery Compatibility
The EcoFlow DELTA 3 is compatible with most EcoFlow expansion batteries (sold separately). Connect your D3 to any of these batteries to expand your power station's capacity from 1kWh up to 4kWh.
Please note that an EcoFlow Smart Generator Adapter is required for connecting any expansion battery with this power station.
EcoFlow DELTA 3 Series Comparison Chart
Confused by all the DELTA 3 Power Stations? So were we! That's why we put together this comparison chart to help.
Specification
DELTA 3
DELTA 3 Classic
DELTA 3 1500
DELTA 3 Plus
DELTA 3 Max
DELTA 3 Max Plus
DELTA 3 Ultra
DELTA 3 Ultra Plus
Battery Capacity
1024 Wh
1024 Wh
1536 Wh
1024 Wh
2048 Wh
2048 Wh
3072 Wh
3072 Wh
Battery Chemistry
LFP (LiFePO₄)
LFP (LiFePO₄)
LFP (LiFePO₄)
LFP (LiFePO₄)
LFP (LiFePO₄, automotive-grade full-tab cells)
LFP (LiFePO₄, automotive-grade full-tab cells)
LFP (LiFePO₄)
LFP (LiFePO₄)
Cycle Life
4000 cycles to 80% capacity
4000 cycles to 80% capacity
≥ 3000 cycles to 70% capacity
4000 cycles to 80% capacity
≥ 3500 cycles to 80% capacity
≥ 3500 cycles to 80% capacity
≥ 3500 cycles to 80% capacity
≥ 3500 cycles to 80% capacity
AC Output (Continuous / Surge / X-Boost)
1800 W / 3600 W / 2400 W
1800 W / 3600 W / 2600 W
1800 W / 3600 W / 2200 W
1800 W / 3600 W / 2200 W
2400 W / 3600 W / 3400 W
3000 W / 6000 W / 3800 W
3600 W / 7200 W / 4600 W
3600 W / 7200 W / 4600 W
USB / DC Outputs (Summary)
2× USB-A (18 W), 2× USB-C (100 W), Car 12.6 V 10 A (126 W), 2× DC5521 (12.6 V 3 A)
2× USB-A (18 W), 2× USB-C (100 W), Car 12.6 V 10 A (126 W), 2× DC5521 (12.6 V 3 A)
USB-A 18 W each; USB-C 100 W each; Car 12.6 V 10 A (126 W); DC5521 12.6 V 3 A ×2
2× USB-A (18 W), 2× USB-C (100 W), Car 12.6 V 10 A, 2× DC5521 (12.6 V 3 A)
USB-A 18 W each; USB-C (100 W + 30 W + 30 W); Car 12.6 V 10 A (126 W)
USB-A 18 W ×1; USB-C 140 W ×1 + 45 W ×2; Anderson 12.6 V 30 A (378 W); Car 12.6 V 10 A (126 W)
USB-C 140 W ×1; USB-A 18 W ×1; Anderson 12 V 30 A (378 W); Car 12 V 10 A (126 W)
USB-C 140 W ×1 + 45 W ×2; USB-A 18 W ×1; Anderson 12 V 30 A (378 W); Car 12 V 10 A (126 W)
AC Input (Max Power / Charge Time)
1500 W, 0–100% ≈ 56 min
1500 W, 0–80% ≈ 45 min
1500 W, 0–80% ≈ 60 min
1500 W, 0–100% ≈ 56 min
1800 W, 0–80% ≈ 68 min
1800 W, 0–80% ≈ 68 min
1800 W, 0–80% ≈ 80 min
1800 W, 0–100% ≈ 48 min
Solar Input (Max / Voltage Range)
500 W (11–60 V, 15 A)
500 W (11–60 V, 15 A)
500 W (11–60 V, 15 A)
1000 W (2 × 500 W MPPT)
500 W max PV
1000 W max PV (2 × 500 W)
800 W max PV
1600 W max PV (2 × 800 W, 11–60 V, 18 A per port)
UPS Switch Time
< 10 ms
< 10 ms
≈ 15 ms
< 10 ms
< 10 ms
< 10 ms
≈ 10 ms
≈ 10 ms
Dimensions (L × W × H)
398 × 200 × 284 mm (15.7 × 7.9 × 11.2 in)
398 × 200 × 284 mm (15.7 × 7.9 × 11.2 in)
398 × 213 × 281.5 mm (15.7 × 8.4 × 11.1 in)
398 × 202 × 283.6 mm (15.7 × 8.0 × 11.2 in)
494 × 239 × 305 mm (19.4 × 9.4 × 12 in)
494 × 242 × 305 mm (19.4 × 9.5 × 12 in)
Suitcase design (dimensions not specified)
613.1 × 327.7 × 394.9 mm (24.1 × 12.9 × 15.5 in)
Weight
12.5 kg (27.6 lb)
12.5 kg (27.6 lb)
16 kg (35.3 lb)
16.5 kg (36.4 lb)
20.3 kg (44.7 lb)
22.1 kg (48.7 lb)
32.7 kg (72.1 lb)
33.7 kg (74.3 lb)
Warranty
5 Years
5 Years
5 Years
5 Years
5 Years
5 Years
5 Years
5 Years
EcoFlow DELTA 3 Warranty
EcoFlow provides a 5-year warranty policy, ensuring the absence of defects in materials, workmanship, and performance during the warranty period.
What's Included
1 x EcoFlow DELTA 3 Portable Power Station
1 x AC Charging Cable
1 x Car Charging Cable
1 x DC5521-DC5525 Cable
1 x Manual
1 x Warranty Card
EcoFlow DELTA 3 Specifications
General 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 Specifications
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
Input Specifications
AC Input Socket
100-120V～15A (50Hz/60Hz)
DC Input Port (XT60) Solar Input
11-60V⎓15A, 500W Max, Car Input: 12V⎓8A Max
Battery Specifications
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)
Temperature Specifications
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)
EcoFlow DELTA 3 Manual
Common Customer Questions
Get answers to the most frequently-asked questions customers ask before placing an order.
Is Outbound Power an Authorized Dealer?
Yes! Outbound Power is an Authorized Dealer for every single brand and product on our store.
How long will it take for my order to arrive?
Shipping times vary depending on your location and the product or products ordered.
Order Processing Time Most products are processed within 1-3 business days. If there is a delay in processing your order, we will alert you with as much information as possible about what to expect.
After order processing is complete, you will receive tracking information to monitor your order while it is in transit.
Order Shipping Time Following processing, it may take between 3 and 8 days to arrive, depending on your location.
Please refer to the product page for your item and reference the estimated delivery time frame for more details.
Additionally, you can see the estimated delivery time frame during checkout and receive a tracking number once your order ships.
What are your shipping rates? Do you offer free shipping?
Everything on our store ships for free. Really!
What is Outbound Power's return policy?
Most items may be returned within 30 days of delivery. Please refer to our Returns & Exchanges policy to determine what items are eligible. Returns are not accepted beyond 30 days following delivery.
Are Outbound Power products used/old/refurbished?
Everything sold on our website is brand-new.
Do you price match?
No — we price BEAT! Please refer to our Price Beat Promise for full details.
Thank you for your 5-star review! We’re so glad to hear that your EcoFlow DELTA 3 is living up to expectations and that your experience with our team was a positive one.
Your kind words mean a lot — we truly appreciate your support and trust in us. If you ever have any questions or need assistance down the road, don’t hesitate to reach out.
Enjoy your new power station, and thank you again for choosing Outbound Power!
Great pricing. When I am ready to upgrade, I plan on doing business with you all again. You value customers and that is greatly appreciated. Thanks for everything.
Thank you for your kind words and support! We’re glad to hear you’re satisfied with our pricing and service. We look forward to assisting you with your upgrade when you’re ready. Thanks again for choosing Outbound Power, and please let us know if we can ever be of service.
Exact fit to the Cummins 4500i small battery compartment.
Thank you for your great review! We're glad the battery fit perfectly and met your expectations. If you need anything else, please don’t hesitate to reach out, we’re always here to help.
Hi Sam, thank you for your fantastic review! We're so glad to hear the Pecron Trolley Kit works great for you. If you need any further assistance, feel free to reach out. Cheers!
This was purchased to run a small compressor when our crews are on job sites where running and moving power cords is inconvenient and time consuming. The generator is lightweight and perfect for the task. We're now investing in a second unit.
Thank you for the great review! We’re glad to hear it is making work easier. We truly appreciate your business. Please let us know if there is anything more we can do to be of service!
I like outbound because they give a good deal discount called. They help when you call nice people when you call the number they answer and help thank you
Hi Melvin, thank you for your kind words! We're glad you had a great experience and appreciate your support. If you need anything else, we're here to help!
Excellent service with excellent pricing. By far the best price I could find on the battery. Delivery arrived in perfect condition. love all the tracking information.
Thank you so much for the kind review! We’re glad we could provide a great price and that everything arrived to your satisfaction. We also appreciate you mentioning the tracking updates. We want every customer to feel informed and confident from order to delivery. Thanks again for choosing Outbound Power and please let us know if we can ever be of service!
Thank you for the positive feedback! We strive to provide excellent customer service and we're glad to hear that you had a great experience with us. We appreciate your support and hope to continue serving you in the future!
Outbound Power did a great job with communication and answered all my presale questions. Shipping was prompt - and was patient with me during a small snafu when my neighbor was being “helpful” and took one of the boxes and neglected to tell me. Great prices too!
Hi James, thank you for taking the time to leave us a review. We are thrilled to hear that you had a positive experience with our team! Thank you for your business and please feel welcome to reach out anytime if we can be of service!
Fantastic service from Jam at Outbound Power made this an easy choice.
We are in the installation phase now and are excited to have a reliable system for our power backup needs.
Thank you for your kind words and for choosing Outbound Power for your backup power needs. We're happy to hear that Jam provided fantastic service and helped make the decision process easy for you. Our goal is always to help customers find a reliable backup power solution that fits their needs.
We’re excited for you to begin the installation phase and are confident you’ll be pleased with the Anker SOLIX E10 Smart Hybrid Whole-Home Backup System. Thank you again for choosing Outbound Power!
This works very well. I can charge my unit and expansion batteries more than twice as fast as using a 120 volt wall outlet. I think it also helps with the battery temperature.
Hi there, thank you for your positive feedback! We're glad to hear that the cable is working well for you and is able to charge your unit and expansion batteries at a faster rate. If we can be of service again, please let us know!
