EF ECOFLOW DELTA 2 MAX Power Station with Smart Extra Battery, Expand Capacity from 2048Wh to 4096Wh, Solar Generator for Home Backup, Emergency, Outdoor Camping
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Availability:
20 left in stock
Arrives
Sep 9 – Sep 14
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Style: DELTA 2 Max+Extra Battery
Features
- Fuel up 80% in Only 43 Mins. With DELTA 2 Max's upgraded tech, combine up to 1000W solar input with AC for world-leading charging speeds. In only 43 min get an 80% charge. Or stick with AC for an 80% charge in a speedy 1.1 hour.
- 10-Year Long-Lasting LFP Battery. LFP battery chemistry provides 3000 cycles till it lowers to 80% capacity. That's 6 more cycles than the industry average and more cost-efficient. EcoFlow DELTA2 Max electric generator also comes with an extended 5-year service.
- Expandable Capacity from 2kWh to 6kWh. Triple the capacity of DELTA 2 Max with up to 2 extra solar powered batteries. Customize your energy depending on your needs. With a plug-and-play design, it's easier than ever to prepare for blackouts.
- Power 99% of Your Household Devices. Run pretty much any of your home appliances with up to 2400W. With 15 outlets, there's space for any device, and using X-Boost mode, power high-wattage appliances with up to 3400W.
- Quiet Charging. With volume levels starting from only 30 dB, DELTA 2 Max outdoor generator is perfect for powering devices overnight without disturbing sleep. Use the EcoFlow app to manage your energy use, set automations, and more.
- Separate Shipments. To ensure prompt delivery, please note that the DELTA 2 Max Solar Generator and Smart Extra Battery will be shipped separately.
Brand: EF ECOFLOW
Wattage: 4096 Watt-hours
Fuel Type: Electric
Power Source: Solar Powered
Recommended Uses For Product: Camping
Voltage: 110 Volts
Output Wattage: 2400
Special Feature: 10-Year Long-Lasting LFP battery, 2400W LFP Solar Generator, As Quiet as 30 dB, Expandable Capacity. Up to 6kWh, No fumes. No noise. No maintenance. See more
Included Components: EcoFlow DELTA 2 Max Power Station, AC Charging Cable, Car Charging Cable, DC5521 to DC5525 Cable, User Manual See more
Color: black or dark gray
Brand: EF ECOFLOW
Wattage: 4096 Watt-hours
Fuel Type: Electric
Power Source: Solar Powered
Recommended Uses For Product: Camping
Voltage: 110 Volts
Output Wattage: 2400
Special Feature: 10-Year Long-Lasting LFP battery, 2400W LFP Solar Generator, As Quiet as 30 dB, Expandable Capacity. Up to 6kWh, No fumes. No noise. No maintenance.
Included Components: EcoFlow DELTA 2 Max Power Station, AC Charging Cable, Car Charging Cable, DC5521 to DC5525 Cable, User Manual
Color: black or dark gray
Product Dimensions: 12.2"L x 9.7"W x 20"H
Material: Hard Plastic
Model Name: DELTA 2 Max
Engine Type: 4 Stroke
Ignition System Type: electric
Engine Displacement: 79 Cubic Centimeters
Runtime: 43 minutes
Total Power Outlets: 15
Frequency: 50 Hz
Engine Power Maximum: 2.4E+3 Watts
Starting Wattage: 2.4E+3 Watts
Running Wattage: 2.4E+3 Watts
UPC: 842783128720
Manufacturer: EcoFlow
Item Weight: 92 pounds
Item model number: EFD350
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sep 9 – Sep 14
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
Style: DELTA 2 Max+400W Solar Panel
The main reason I bought the battery was to have a power backup due to the constant blackouts that occur here. As I learned, I realized that it not only serves as a backup battery but also supplies free energy (via the solar panels) to the areas with the most electricity consumption in my house (kitchen, laundry room, my office etc..., which is where we spend most of the day). It works as an inverter. While the two 575-watt panels recharge the battery at the two charging ports, the battery supplies voltage at the same time, and when the sun goes down, the consuming power without needing the grid electricity (using just the battery). This has reduced my consumption electricity bill by more than half. It's a super powerful device and really worth the investment. P.D it is really funny when the entire block is without power and just my home totally lighted, I really enjoy it when everyone turns their head and look like asking them self why this house has electricity? lol
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Reviewed in the United States on July 22, 2025 by Aaron Cantu
Style: DELTA 2 Max+220W Solar Panel
I started with the ECOFLOW Delta-2 by a mishap, but it was easily cleared up by their superior customer service. I now am the proud owner of the Delta 2 MAX. I have some photos of the readings from a gloomy/overcast/cloudy day, where I was still pulling some wattage to charge the system (around 35-45 watts) Then some sunny day shots of the panels set up using their built-in stand=works very well, especially since it is actually a built-in stand from the protective/zip up cover/storage for your expandable panels. They fold out easily and set up just as easy. Make sure to take advantage of the dual surface capabilities! I have pumped out 190+ watts using reflective materials that project the sun's rays unto the back of the panels as well. With the sun at 10-2 pm, and no reflective materials set up yet, I was cranking out 140-160 watts, as shown in the pics. I do not remember if I got the 190+ watt shots, but I will check my phone and post if I can find them, if not, I will get some as soon as I drain the MAX and have to charge it back up. These panels are rated at 220W, and saving you from boring details of specs etc., that equates to around 140-160+- watts during full sun in California. If you need to charge it fast for a trip, use the wall plug, it CRANKS the watts, I have a shot where its at 1152 wats from the wall outlet in my house. The max is portable and light for what it pumps out, "quietly". I am around 6' 200lb weight lifter type guy, and it is light for me, I can carry the generator in 1 hand, and the panels in the other, so many of you fellow muscle guys & gals will be able to do the same I'm guessing, otherwise, just make 2 trips or get a buddy. I also show some shots of it running a dyson vac & washing machine at the same time=EASY for the max. I ran my fridge with the D-2, so the max will have no problem with the fridge as well. The customer service is amazing, responsive to you within 24 hrs, sometimes within the same day=few hours even. They are so professional and kind, even fun to speak with. All have been from the Philippines, and I have YET to receive anything less than superior customer service quality from the Philippines, its as if they were born with superior CS skills built in. I am very grateful for their abilities to handle any and all issues I had after my initial purchase, and the follow up is just as high quality. AND, the issues were minor, and few. Mainly my misunderstanding of specs/etc. as I am quickly learning about the solar products. They have been a HUGE help & friends to my new venture into solar power. YES, I said FRIENDS! Think of one of your best friends, and they stand behind their products like a best friend would stand behind you. Why do I mention this? Because I know how I felt about purchasing my first solar generator, the anxiety & plethora of questions in my head. I have been researching for a few Years, and I am 100% glad I chose ECOFLOW, and I have complete confidence to put MY NAME on their customer service and product support. Bottom line, you CANNOT GO WRONG with ECOFLOW products if all their CS reps are like the ones I spoke with, PLUS their products are performing up to and beyond expectations! At this point, a few months in to owning the MAX, I am extremely happy, and satisfied with every aspect of their company, how often can any of us say that today? I will be investing in a whole home system sometime in the near future, and ECOFLOW is at the top of the list.
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Reviewed in the United States on October 5, 2023 by The Sicilian The Sicilian
Style: DELTA 2 Max+2*220W Solar Panel
Ecoflow does it again with another banger of a system! I took this unit out camping for a little over a week with some of my friends, and with the 2 extra batteries, and 440W Worth of bifacial Ecoflow panels we had power continuously. I only needed to break out the panels around day 4 to charge it back up. Keeping all of our electronics (drones, RC cars, portable fridge cooler, CPAP machines, etc) charged/powered up wasn’t an issue for this unit, and the lowest I ever saw it go was around 30% initially I charged it up a little off of my Honda eu1000 since the clouds were out in the morning, which worked well since ecoflow added a variable wattage AC charging feature! You can limit the wattage it pulls off of AC so you can run smaller (or larger) generators as a backup. That alone makes this unit very versatile. I switched over to solar around 50% charge, and After a full day of sun it was back to full. I Highly recommend this system if you plan on boondocking, or over-landing, as it will power just about anything you will throw at it with 2400w (4800w burst) of output. The system is a little bulky, but it fits well in the corner of a tent. The displays are bright and easily read from a distance, so checking on it outside the tent was easy. Overall this would be a great system for home backup or outdoors adventures! Update! I’ve been using this unit with about 1200w worth of panels outside of my house since march to power my laundry room. I have one of the Samsung bespoke combo washer/dryer units that is a heat pump design, and it has run that thing flawlessly. And with those panels outside, it hasn’t been plugged into the grid for about 7 months now! Using the sun to wash my clothes is so cool! It’s fully topped back off each day, and even with a little cloud cover, it recovers nicely since I over-paneled it. I’ve been so impressed with this unit, that I ended up diving in deep and purchased 2 of their ultra systems (12kWh each), a smart home panel 2 and over 11kW worth of panels in my back yard! We’ve had a couple power outages where I am at, I didn’t notice they happened until I saw all of the other houses in my neighborhood were dark… haha. Even better is my electric bill is all but non-existent.
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Reviewed in the United States on July 31, 2024 by Douglas Bomer Douglas Bomer
Style: DELTA 2 Max+Extra Battery
EcoFlow is still is a high quality product for whenever or wherever power is needed. Peace of mind knowing I’ll have power now during hurricane season or just about anything. Easy to operate. I purchased the main unit and the extra battery to keep my home powered for long periods of time. Plus easy to recharge with sustainable energy using solar panels. Build your power station with support from EcoFlow. They will walk you through the steps on everything you’ll need for your in home power system. Plus you will want to have this power supply to just cut your electric bills.
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Reviewed in the United States on August 5, 2025 by ed