Search  for anything...

EF ECOFLOW Solar Generator 3.6KWh DELTA Pro with 2X400W Portable Solar Panel, 23% High Efficiency, 5 AC Outlets, 120V/3600W, for Home Backup Outdoors Camping RV Emergency

  • Based on 661 reviews
Condition: New
Checking for product changes
$2,999.00 Why this price?
Save $1,400.00 was $4,399.00

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.


Availability: Only 10 left in stock, order soon!
Fulfilled by EcoFlow Inc.

Arrives May 7 – May 9
Order within 19 hours and 1 minute
Available payment plans shown during checkout

Style: DELTA Pro+2*400W Solar Panel


Features

  • Ultra-powerful Capacity. DELTA Pro has a large 3600Wh battery capacity with 3600W AC output and total 15 outlets, which make it a strong home backup. With x-boost technology, it can power domestic appliances up to 4500W. Full charged in 1.8 hrs with 240V outlets(3000W), 2.7 hrs with 1800W wall outlets. Remember that the solar generator and the solar panel(s) will be shipped in separate packages.
  • High Efficiency. When paired with the generator, the 400W portable solar panel achieves optimal efficiency no matter when it rains or shines. Where solar panels are concerned, its conversion rate of 22.4%. With a single 400W panel, the large power bank gets a full recharge in 11 hours and with the 3x400W ones, it gets a full recharge in 3.5 hours.
  • Light and Durable. The 400W Solar Panel is foldable and comes with an adjustable carry case. Weighing in at only 16kg (35.3lbs), it can be easily packed up and carried with you, no matter where you go. It also comes with a IP68 Waterproof rating, meaning it is dust and water tight.
  • 15 Versatile Outputs. DELTA Pro includes 15 outlets and ports: 5 AC outlets, 4 USB-A ports, 2 USB-C ports, 2 DC ports, 1 car power output and 1 Anderson port. Power all your devices such as mobile phone, tablet, camera, radio, projector, night light, mini fan and so on.
  • Smart App Control. Use the EcoFlow app via wi-fi or bluetooth. Monitor the status of all your devices and power sources that are charging your portable generator. Check on charge level, temperature and charge/discharge times. Control from afar and customize all settings, such as battery life, input/output, and more.
  • Kindly note that the solar generator and the 400W solar panel will be shipped in different packages.

Brand: EF ECOFLOW


Wattage: 3600 watts


Fuel Type: Electric


Power Source: Solar Powered


Recommended Uses For Product: Residential, Camping


Item Weight: 99 Pounds


Voltage: 120 Volts (AC)


Output Wattage: 3600


Special Feature: X-Boost Technology, X-Stream Fast Charging


Included Components: 3600W Solar generator, 2x400W flexible solar panels


Brand: EF ECOFLOW


Wattage: 3600 watts


Fuel Type: Electric


Power Source: Solar Powered


Recommended Uses For Product: Residential, Camping


Item Weight: 99 Pounds


Voltage: 120 Volts (AC)


Output Wattage: 3600


Special Feature: X-Boost Technology, X-Stream Fast Charging


Included Components: 3600W Solar generator, 2x400W flexible solar panels


Color: DELTA Pro with 400W Foldable Panel


Product Dimensions: 16.4"L x 25"W x 11.2"H


Model Name: EFD500


Engine Type: 4 Stroke


Runtime: 1 hour


Total Power Outlets: 15


Frequency: 60 Hz


Current Rating: 12 Amps


Starting Wattage: 3.6E+3 Watts


Running Wattage: 3.6E+3 Watts


UPC: 842783131522


Manufacturer: ECOFLOW


Item Weight: 99 pounds


Item model number: EFD500


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 7 – May 9

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good peace of mind for stormy weather
Style: DELTA Pro+Transfer Switch
We got the Ecoflow Delta Pro with transfer switch to run our furnace, fridge/freezers, sump pump and basement sink pump (where furnace condensate pump drains) overnight when the power is out due to storms. We had an electrician install the transfer switch not too long after receiving the unit. While we have not had an outage since we got it (not that I mind!), we have tested it out and it will be more than enough to allow us to peacefully sleep overnight. Except in situations when the furnace is going nearly constantly, we expect that this unit will run about a day with what we have on it. Before, we had to juggle sleep times to make sure that the fridge didn’t warm up and/or the house get too cold. Plus there was having to deal with an outside generator and the power cables going into the house in the cold and dark to boot. We used to use space heaters, which don’t quite do enough for the northern US in the winter, especially if you are out for a few days. The transfer switch is invaluable as we also can use it to plug in the generators to run the circuits attached (the furnace!!!) while recharging the Delta pro. A few things to note: 1) The Delta Pro’s instructions recommend a 45 day power discharge-charge cycle to help maintain the battery. We’ve just added it to our home maintenance routine and use the transfer switch for the discharge part of the power cycle. It works great and also gives us an idea how long it will work when we need it. I’m actually running a testing cycle as I’m writing a review in on a cold, snowy day. I don’t think that I could be more pleased with this setup (working as planned)! 2) We have done nothing with the bluetooth/wifi interface. We’re just using it as a backup battery that we manually connect to the transfer switch and it has been doing that so far out of the box without modifying the settings. If that’s important to you, I think other reviewers commented on that. 3) The transfer switch when we got the kit is a manual transfer switch that has 6 circuits with 120v as it comes with a single Delta Pro. You operate it fully manually, and that’s what we wanted. It is NOT a standby that kicks on if the power goes out (I think that you would need a smart panel for that). If you need 240v (for central AC?), keep that in mind as you may want a different transfer switch and should get the Delta Pro 3 or two Delta Pros with the double voltage hub. Any electrician should be able to get an appropriate transfer switch locally if you need to go that route. ... show more
Reviewed in the United States on November 29, 2024 by sciBookLover

  • Brilliant Battery & solar generator - Not just for emergencies
Style: DELTA Pro+Bag
AMAZING FOR TOU POWER PLANS! Great product, built like a tank (it even has wheels!) charges incredibly fast, I'm not using this as an emergency backup (although it will be amazing to have during one anyway), I'm using it as a solar generator. With power becoming more and more expensive - I wanted to find a way to decrease my bill and use the free natural solar power around my house. Hooking up 2x 400W Ecoflow solar panels in series, on a very sunny day I can charge this from 0-80% in around 6-7 hours, which means on sunny days I barely rely on grid power anymore. I was worried it would be too heavy to move around to use in different rooms, but the handle and wheels make it as easy as pulling a cart or wheelbarrow (it's 99lbs, so not light, but I'm 5'6 and skinny and I had no problem picking it up) It does get a bit noisy if you're discharging or charging at above around 700-1000W, but its not a big deal if you use headphones, I'd rather it be safe and cool than have the chance of overheating. I would recommend getting some solar if you buy this, if you've never used solar power before, it's an amazing feeling knowing you're using the energy that would have just been wasted into the ground, and this battery can power most houses for a full day. Ecoflow support have been incredibly helpful and kind, so if anything goes wrong I have trust that they would replace or help me fix the issue. ... show more
Reviewed in the United States on December 12, 2022 by samuel samuel

  • Good Test for ECOFLOW Delata PRO Home Battery Backup for Electricity Supply
Style: DELTA Pro
I bought this 3600Wh home battery backup and two 400W portable solar panels because I did not trust a 5000W gasoline generator that I had not used since Hurricane Ike in 2008 with the CO2/CO risk. The ECOFLOW system worked just fine and took only a few minutes to set up. Fully charged quickly from home wall outlet. Can't connect to home AC units, but wih 4 AC outlets, I used it to power (not all at same time) entertainment center, WiFi, phones, a few lamps, a garage door opener, a chain saw (yes electric, no battery), microwave oven, hair dryer and my refrigerator and used it to recharge backup batteries for iPhone, home security system and fiber optic connector. Only connected to refrigerator for 5-6 hours during middle of day so that I had at least 30% charge for next morning. Did not like Amazon description that included "Solar Generator for Home Use". Compatible portable 400W solar panels are sold separately. You have to manage power usage especially since solar panels do not work at night and work poorly in the morning, evening and when cloudy. However, during clear days in SE Texas at mid day, my 800W of solar panels produced a peak of 695W. Based on my experience with the days after Hurricane Beryl, I have ordered another 400W solar panel. ... show more
Reviewed in the United States on July 12, 2024 by Bruce C. Bruce C.

  • Good generator, but first generator received was bad and hassle to return
Style: DELTA Pro+400W Solar Panel
The first Delta Pro generator that I received didn't power any of the devices that I tried in any of the plugs, even when fully charged. Plus, the screen only came on for 1-2 secs and then it shut off. I called them twice. The first call I was told to update the firmware. I tried that, but the app said it could not connect to the unit. On the second call to them, I was told that even if the firmware was not up to date, it would not cause the generator to not power any devices. She said we have a defective unit and that they would replace it. I was told to pack up the unit, and that a return shipping label would be sent to us. I repacked, taped up, and moved this 100 lb unit to our front door. After doing all that, then I received an email saying that we needed to update the firmware and video tape everything we do and send it to them for review....and no shipping label was received. And FYI, I also had purchased the 4 year service contract. I felt like I was getting the run around even after getting the service contract. I decided to call one more time. Then, they promptly sent me a return label. They asked for a photo of the package that was ready to be shipped. Did that. Within a day of them receiving the returned unit, they sent me a new unit. This one seems to be working well. ... show more
Reviewed in the United States on March 22, 2025 by tom lloyd

Can't find a product?

Find it on Amazon first, then paste the link below.