Search  for anything...
EF ECOFLOW

EF ECOFLOW DELTA Pro Extra Battery 3600Wh, 2.7H to Full Charge, Battery Backup for Home Use, Blackout, Camping, RV

    • Based on 390 reviews
Condition: New
Checking for product changes
$1,999.00 Why this price?
Save $200.00 was $2,199.00

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – 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: 20 left in stock
Fulfilled by EcoFlow Inc.
Arrives Nov 23 – Nov 28
Order within 18 hours and 8 minutes
Available payment plans shown during checkout

Style: DELTA Pro Extra Battery


Features

  • Expandable CapacityWith a extra battery, DELTA Pro can expand capacity from 3.6kWh to 7.2kWh for battery backup power supply. Thatll give you days of power for your essential appliances.
  • Charge Anytime, AnywhereDELTA Pros extra battery benefits from all the charging methods DELTA Pro has, including 6500W MultiCharge. That means you can charge anytime, anywhere as long as your extra battery is connected to DELTA Pro. Once connected, theyll charge/discharge in unison, keeping the battery percent level across both units.
  • Ready for Any EmergencyWhen the going gets tough and youre out of charge options, get a 1800W DC fast charge with EcoFlow Smart Generator (sold separately). Just plug the generator directly into your extra battery via the port on the back. This works even when disconnected from your DELTA Pro.
  • Stay InformedThe extra battery sports a bright LCD screen on the front of the unit giving you all the info you need. Output, input, remaining charge and time remaining. Its all there. Need on the go info? The EcoFlow app can tell you all that & a whole lot more.
  • Smart ControlDELTA Pros extra battery can be monitored from the EcoFlow app, allowing you to monitor & control your batteries from afar.

Brand: EF ECOFLOW


Wattage: 3600 watts


Power Source: Battery Powered


Recommended Uses For Product: outdoor


Item Weight: 84 Pounds


Voltage: 120 Volts


Output Wattage: 3000


Special Feature: Plug&Play home backup solution, clean and safe power, long-lasting LFP battery


Included Components: Extra Battery, Charge Cable, Hand Cover, User Manual


Color: Black, Grey


Model Number: EFD500


UPC: 842783147097


Manufacturer: ECOFLOW


Brand Name: EF ECOFLOW


Included Components: Extra Battery, Charge Cable, Hand Cover, User Manual


Model Name: EFD500-EB


Frequency: 50 Hz


Voltage: 120 Volts


Output Wattage: 3000


Additional Features: Plug&Play home backup solution, clean and safe power, long-lasting LFP battery


Engine Type: 4 Stroke


Wattage: 3600 watts


Power Source: Battery Powered


Recommended Uses For Product: outdoor


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


Item Weight: 84 Pounds


Color: Black, Grey


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 23 – Nov 28

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.

Similar Products

Top Amazon Reviews

    • Stellar performance, one of the best apps I've ever used
Style: DELTA Pro+2xExtra Battery
I would like to start out with the app which crosses over into the feature set. I'm an Android user and I find that most companies will focus more efforts on their iOS app; Android being "the red headed step child". That is NOT the case with Ecoflow. I can't speak to the iOS app, but their Android app is absolutely top notch. I would go so far as to say it's in the top 5 apps, as far as user experience goes, that I've ever used. Getting the device connected to WiFi, upgrading the firmware, and getting it set up is extremely intuitive, never had any issues or errors which are typical with other devices (not just power generators, but all devices that connect to WiFi). The intelligence to include a lower charge shut off and an upper charge shutoff tells me that they really considered the lifecycle of your investment. Additionally, you can limit the amount of wattage the devices charge at for their various charging methods, that's just going above and beyond in my opinion. You don't have to worry about tripping any breakers or anything like that. As far as hardware goes, they're pretty solid devices. From the rugged exterior and cables down to the quality of the LCD screen it's all very well built. I LOVE that they had the forethought to include the collabsable handle and wheels because these suckers are HEAVY. On that note, I wish they put hand holds in the box that they come in. Carrying something that heavy and awkwardly sized to get it in the house and unboxed is a bit of a pain. I aggravated a knee injury in the process; although I'm partly to blame for that one. Simple perforations in the sides of the box for the hand holds like many other manufacturers of large gear would go a long way. I'll close with their customer service. I happened to catch this on a bundle + a deal that included a grounding module. Apparently, during checkout with Amazon, there was a checkbox that I didn't check to opt in to this deal. When I contacted customer service, they pointed this out, but still asked me for my shipping address and sent me the grounding unit at no cost to me! Additionally, I've been contacted by them since receiving the bundle to make sure that I was all set and addressed the single question I had. I really ask that anyone reading this part goes back to the beginning of this paragraph and reads it again. When is the last time you got what you would consider even "adequate" customer service? When was the last time you got "good" or even "excellent" customer service? This is one of the best customer service experiences I've ever had if not THE best. I want to emphasize that they weren't annoying about it either. I simply had a voicemail one day from them stating that they were just checking in to see if everything was working OK and if I had any questions to give them a call back. A single voicemail. No emails, no multiple phone calls, just a voicemail. Point is, I wasn't being harassed. They just wanted to make sure that I was set with my investment. Delta Pro 9/10 EcoFlow App 10/10 EcoFlow Company 11/10 I'm docking the Delta Pro a point for 2 reasons (and this really applies to the extended batteries as well). One being they could've put a little more thought into the cumbersome nature of moving the box around, simple perforated hand holds in the outer carboard box would've rectified this. Also to that point, it would be nice to have a less conspicuous box. Anyone within viewing range could've easily looked up what EcoFlow offers and known these boxes were worth stealing. The second reason I dock a point is that I'd like included is some dust & water resistant covers for USB and AC outlets. To charge the device, there's a door that flips up (not spring loaded) so that's at least a little protected. These are going to be in my basement and there's going to be dust. I know they offer a pretty expensive cover for this reason but some removable rubber plugs I think is minimum as the cost of them justifies a little more forethought for protection of the power outputs. I have already recommended them to anyone I've talked with looking for a power station, generator, or reliable battery backup for important electronics. Just this past week a tornado went through our neighborhood and someone was looking for backup suggestions because their sump pump went out and their basement flooded. I recommended the Delta 2 (the Delta Pro is a bit overkill for a sump pump). ... show more
Reviewed in the United States on April 5, 2023 by Matt B
    • Jack of All Trades
Style: DELTA Pro Extra Battery
My Delta Pro +extra battery wears several hats. Though I originally purchased this item to provide power to my RV while dry camping, I discovered that I could also connect this unit to the manual transfer switch I had already installed on my house to supply emergency power for my house for a few hours instead of using my gas generator. I prefer this method to using the gas generator because it is quieter and quicker and easier to start up and get going. So far, I have yet to have a power outage last longer than the capacity of my Delta Pro +extra battery but I am prepared just in case. In addition to this, I have four 400W solar panels connected full time to my Delta Pro to help keep down my energy costs. Connected to my manual transfer switch, I was able to do this without going through the expense of hiring an electrician to install a grid tie inverter. Instead, through the manual transfer switch, I am able to supplement my home electrical with approximately 7kw per day which saves me about $50-$60 per month on my electric bill. Not huge but not bad for using something I already owned that would be otherwise be sitting in a box between camping trips or power outages. Also, the Ecoflow app allows me to set up a "backup reserve" which enables me to utilize every single watt of solar power generated while not allowing my battery to be depleted beyond a certain level in case it is needed in an emergency. Absolutely brilliant! BTW, I found the 400w solar panels for about $180 each so that cost will be made up in just a matter of months instead of years with a full install. Overall, I am very happy with the flexibility and usability of the Delta Pro system. My only gripe is the incompatibility with other items in the Ecoflow lineup and the short proprietary cable necessary to connect the extra battery to the Delta Pro. Come on guys! If you can't come up with a non-proprietary solution, at least provide a longer cable that connects at a 90 degree angle so it doesn't take up so much room in the back. I'd even pay extra for it if it were available as an accessory. Other than that, this is a solid unit that I hope will provide years of faithful service. ... show more
Reviewed in the United States on August 17, 2024 by Diverjay
    • Quality Product
Style: DELTA Pro Extra Battery
Well packaged, fast delivery. Easy setup, main unit instantly recognized and charging was fast. Ecoflow great system. A+++++
Reviewed in the United States on October 29, 2024 by Bob
    • Worked great when needed
Style: DELTA Pro
Worked great when it was needed. This past hurricane we were without power for 3 days, it kept the refrigerator running and we could use our electric appliances when preparing meals.
Reviewed in the United States on October 30, 2024 by Bill K.
    • Excellent Customer Service Even Though We Returned It
Style: DELTA Pro
Gosh we really wanted this to work for us. We had the product for about 4 months and kept it in our hallway charging. For some reason, the product we got was defective and we asked to return it. They okayed the return promptly for which I was relieved and grateful. My daughter and partner have the same product and they love theirs and haven't had any problems with theirs. I wish it would have worked out for us to keep it or get an exchange. ... show more
Reviewed in the United States on August 21, 2024 by Sunset Lover
    • Not reliable. No service available. Don’t buy it!
Style: DELTA Pro+Extra Battery
Review Image by Lorenzo D Lorenzo D
This is the first time I leave a bad review for a product and ai feel bad but I need everyone to know about my experience with this product. I purchased this system 2 years ago and I’ve been having issues since the day I purchased it. No technicians available in FL, relays malfunctioning , firmware not updating, no charging, issues connecting with the smart home panel . I spent hundreds $$ every time someone came to fix the system and now that a storm is approaching I’ve been back and forth with them by email for 10 days . No resolution. I told them I have a toddler and can’t afford to lose power. The system is under warranty but I can’t get my money back , nor would they send someone to see what the issue is. ... show more
Reviewed in the United States on October 7, 2024 by Lorenzo D Lorenzo D

Can't find a product?

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