EF ECOFLOW 120V Home Backup Kit: DELTA Pro 3600Wh Power Station with Transfer Switch Kit, 3600W AC Output, Solar Generator for Home Use, Emergency, RV
Condition: New
Buy Now, Pay Later
As low as
/ mo
Learn more
- – Up to 36-month term if approved
- – No impact on credit to apply
- – 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, Affirm, Afterpay, Apple Pay, and PayTomorrow. 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 item
Learn more
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!
Arrives
within 30 days
Recently Viewed
Style: DELTA Pro+Transfer Switch
Features
- Large Capacity. Featuring a 3600Wh LFP battery capacity, DELTA Pro provides strong electrical storage for home battery backup power supply and outdoor camping. Applied with DELTA Pro Extra Batteries or Smart Generators, the electric generator can expand its capacity from 3.6kWh to 25kWh.
Specs & Other Info
| Specification | Details |
|---|---|
| Manufacturer | EcoFlow |
| Model Name | EFD500 |
| Power Output | 3600 Watts |
| Energy Source | Battery |
| Primary Use | Home |
| Operating Voltage | 120V |
| Key Feature | Compact and Mobile |
| Package Contents | DELTA Pro 3600Wh Power Station, Adapter, 306A1 Transfer Switch |
| Color Scheme | 120v/3600wh |
| Size | 11.2 x 16.4 x 25 inches |
| Weight | 99 lbs |
| Country of Manufacture | China |
| Engine Specifications | 4 Stroke, 60 Hz |
| Warranty | 5-Year Manufacturer's Warranty |
| Availability Date | December 5, 2023 |
Frequently asked questions
The EF ECOFLOW DELTA Pro 3600Wh Power Station has a maximum power capacity of 3600Wh. This high capacity makes it suitable for home backup, emergency use, or powering appliances and tools in RVs.
Yes, the EF ECOFLOW DELTA Pro can be charged using solar panels. It is designed to be a versatile solar generator for home use, making it ideal for sustainable energy consumption and off-grid living. The solar charging capability allows for an eco-friendly way to charge the power station.
The EF ECOFLOW DELTA Pro, with a 3600W AC output, can power a wide range of household appliances such as refrigerators, washing machines, air conditioners, and power tools. The duration for which it can power these appliances depends on their power consumption. For example, it could run a fridge for around 40-50 hours, but this duration will be significantly less for high-consumption devices like air conditioners.
The transfer switch kit included with the EF ECOFLOW DELTA Pro is designed for easy installation, allowing homeowners to safely connect the power station to their home circuit. It enables a seamless transition between grid power and the power station during outages, ensuring that critical appliances keep running without interruption.
Similar Products
Top Amazon Reviews
🚀 Abunda's Overview
This is our summary and key points to consider based on customer reviews.
The EcoFlow Delta Pro has garnered high praise for its innovative design, extensive feature set, and overall performance compared to its competitors, especially Goal Zero. Reviewers consistently highlight its impressive battery capacity, rapid charging capabilities, and versatile expansion options. Its LiFePO4 battery technology not only ensures safety and a longer lifespan but also supports a wide range of devices and appliances for extended periods, making it a reliable option for emergency preparedness, home backup, or mobile power needs.
Pros
- 🔋 Impressive battery capacity and expansion possibilities, ranging from 3,600Wh to 25,000Wh
- ⚡ Superfast charging with customizable speeds and a high-quality, large AC inverter offering continuous 3,600W (7,200W peak) output
- 🔄 Versatile expansion and charging options, including solar, AC, and DC, with unique features like the EcoFlow Smart Home Panel and Double Voltage Hub
- 🔧 Built with LiFePO4 technology for enhanced safety and a longer cycle life compared to NMC batteries
- 📱 Intuitive and informative EcoFlow smartphone app for historical data and battery management
- 🛠 Quality construction with handy features like a retractable handle and wheels for mobility, despite its significant weight
Cons
- ⚖️ Heavy at 99 pounds, making it difficult to move up stairs or across uneven surfaces without help
- 🔄 Some configuration options require the app, and cannot be done directly on the unit
- 🛑 Not waterproof, which limits its usability in outdoor or damp environments
- 📦 Short cables for connecting additional batteries, limiting setup flexibility
Should I Buy It?
If you're in the market for a reliable, high-capacity power station with expansive capabilities and fast charging, the EcoFlow Delta Pro is a compelling option. It's particularly well-suited for emergency preparedness, home backup, or anyone requiring extensive power on the go. Despite its weight and a few minor drawbacks, its performance, technology, and design make it a market leader worth considering. If these features align with your power needs and the cons don't deter you, the Delta Pro is a sound investment.
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
Style: DELTA Pro+Transfer Switch
Great product, but I bought it on an Amazon flash sale.I paid $200.00 dollars more than what the price it was showing me was.I found this out later.There isn't a snowballs chance in hell I would have bought it for $2,000.00.Too late now.For now on I will take a screen shot and a picture with my iPhone before I purchase large ticket items on Amazon.Also I could not register on line to activate the warrantee.I could create an account but that's it.If it fails I will purchase from another brand.
...
show more
Reviewed in the United States on October 5, 2025 by Jasmin Verrier
Style: DELTA Pro+Transfer Switch
Is not cheap but is very helpful in case of power outages
Reviewed in the United States on November 15, 2025 by mike
Style: DELTA Pro+Transfer Switch
This needs to be less stars but that’s not allowed. What you need to know: This is not a solar backup battery, this is a battery generator. All the pictures on the description of it connecting to existing PV panels is false advertising. These attach like any standard gas generator with an interlock or with a sub panel. Because of the onboard inverter in the ECOFLOW device this will not communicate with ANY PV solar inverter. Thus it cannot work to back up a home system. Eco flow falsely advertises this hooking to a PV system and being “charged by solar”. It cannot! It can solar charge, but only with Ecoflow panels that are place on the ground, temporarily. Not a permanent solution. What’s worse is these things are about 150 lbs and when trying to send them back ECOFLOWS customer service is horrible. They will send a return label but refuse to schedule a pickup making it your expense to get your money back where do you take 400lbs of batteries and generator to be dropped off. No where in my area because the place refuse to accept them. Clearly ECOFLOW spends all its money on engineers because what these are actually designed for they are nice items. Advertising and customer service however is horrible. Just buy and EG4 battery an hook up your solar with a reputable company. For a RV or camp trip, buy the dual fuel generator or solar panels and it will be fine, it would get a smaller one because it is heavy as sin. This is not for home use other than to run an extension cord to a fridge or fireplace blower. The one star here is for AMAZON (will be 5 if this gets resolved) they have worked with me through this process and are working to make it right. Not sure what will happen yet but they are saying all the right things.
...
show more
Reviewed in the United States on October 26, 2025 by Eric
Style: DELTA Pro+Transfer Switch
So far so good, really like the battery, where I live power goes out a lot, some scheduled maintenance days by power company. So I bought to run refrigerator when power goes out. Plugged in charged to 85%, ran drop cord to refrigerator and keep the battery plugged in all the time, I’m basically using as EPS. Lot of times I’m not home when the power goes out so the battery kicks in when needed and when the refrigerator is plugged into the battery and their is AC power it by passes the battery and automatically switches on when the AC is removed. I’m thinking of buying the extra battery to double amount of time can run refrigerator. I do have an inverter type LG that uses way less than 200Watts when running, I expect it to run almost two days on the battery. I didn’t install solar panel due to location but will setup so can use car charging option thru solar connectors and purchase a small dual fuel generator to charge the battery in emergencies via LPG gas.
...
show more
Reviewed in the United States on September 11, 2024 by Ron
Style: DELTA Pro+Transfer Switch
I bought a Delta 3 solar backup with two 400 watt solar panels. The panels exceeded my expectation at roughly 85% capacity when in full light. I love the fact that they come with a manual lockout box to activate particular circuits within the house. Basically my entire first floor can have light in the event of a power outage by the flick of a button. The only downside to the Delta 3 is the price. Adding an additional battery is way outside of my budget. I really wish they would give better deals on repeat customers wanting to upgrade their stored battery capacity with getting a secondary backup battery. The unit itself is great I have no problems with it. It turns on it connects via Bluetooth and app without a problem which I can't say worked with their competition. I owned a jackery prior to this and this model far exceeds the capabilities the user-friendlyness and the efficiency. Overall if you're looking for a solar battery backup in the event of a storm or power outage the Delta 3 is great again I just wish a secondary battery was a little more affordable
...
show more
Reviewed in the United States on September 27, 2024 by dan mueller
Style: DELTA Pro+Transfer Switch
Well made and does the job. Had an issue with the first generator and Eco Flow made it right and shipped a brand new unit to me! Awesome customer service! This comes with the aux box and makes hook up fairly easy. Have it powering my fridge, freezer and water system. 3 solar panels producing 800 watts to keep this charged up! No noise, no fumes, no gas! Just using the sun and love it! No, it won't power your home air or everything in your home, just the most important ones you decide to use!
...
show more
Reviewed in the United States on April 18, 2026 by juicesqueezer
Style: DELTA Pro+Transfer Switch
I ordered everything on the 2nd from Amazon. There were three separate shipments made. Received the Delta Pro very quickly. I had to message EcoFlow for the tracking numbers on the cord and transfer switch. (Easily done right on Amazon messaging). EcoFlow responded very fast and was extremely helpful! The transfer switch arrived on the 9th and the cord came on the 13th. So I had everything in less than two weeks. Quality products and reasonable shipping time. Highly recommend!
...
show more
Reviewed in the United States on December 13, 2024 by Herman