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EF ECOFLOW

EF ECOFLOW DELTA Max Smart Portable Extra Battery, 2016Wh Capacity, Expand (1600/2000) up to 5644/6048Wh, Fast Charging, Expand DELTA 2 up to 3Wh for Home Backup

    • Based on 210 reviews
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Availability: In Stock.
Fulfilled by EcoFlow Inc.
Arrives Sep 25 – Sep 27
Order within 22 hours and 52 minutes
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Style: EcoFlow DELTA Max 2000 Extra Battery


Brand: EF ECOFLOW


Wattage: 2000 watts


Power Source: Solar Powered, Battery Powered


Voltage: 120 Volts


Output Wattage: 3400 Watts


Special Feature: Portable


Included Components: Charging Cable


Color: Black/Grey


Product Dimensions: 18.3"L x 9.3"W x 11.1"H


Model Name: DELTA Max Smart Extra Battery


Brand: ‎EF ECOFLOW


Wattage: ‎2000 watts


Power Source: ‎Solar Powered, Battery Powered


Voltage: ‎120 Volts


Output Wattage: ‎3400 Watts


Special Feature: ‎Portable


Included Components: ‎Charging Cable


Color: ‎Black/Grey


Product Dimensions: ‎18.3"L x 9.3"W x 11.1"H


Model Name: ‎DELTA Max Smart Extra Battery


Total Power Outlets: ‎1


Frequency: ‎50 Hz


Starting Wattage: ‎4600 Watts


Is Electric: ‎Yes


UPC: ‎842783106018


Part Number: ‎EFD310-EB


Item model number: ‎EFD310-EB


Style: ‎EcoFlow DELTA Max 2000 Extra Battery


Item Package Quantity: ‎1


Special Features: ‎Portable


Date First Available: September 23, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 25 – Sep 27

This item is non-returnable:

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

View our full returns policy here.

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    • Yes, it powers a fridge a freezer, and an EV
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The media could not be loaded. I've seen a number of questions, "Will it power my fridge..." or microwave or other appliance. I ran my industrial side-by-side for more than 12 hours then charged my 100kW EV adding 1% of charge equal to a bit more than 4 miles. Hopefully, this helps folks decide whether to buy these power packs. I recommend these units and I'd like to add that customer service is first-class and very responsive. ... show more
Reviewed in the United States on June 30, 2024 by Professional Cello Guy Professional Cello Guy
    • say good bye to that loud gas-guzzling generator
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Had a large gas-guzzling Honda 7000/12000-watt generator that didn't have an electric start and was too loud to run in my current housing development. Not to mention it was a bear to set up and startup. Chronic back pain prohibits and limits my ability to set up and run this outdated and inefficient solution. So, I did some homework and found the ECOflow product line. I already owned the ECOFlow delta and using it as a temporary solution to keep my fridge, microwave and a few lights going during a power outage. Then ECOflow introduced the Delta Max and Delta Pro. I decided to purchase the Delta Max and 2ea additional smart batteries. My reason for this was product weight, product foot print and cost. The Delta Max solution was easy for me to move/transport and setup. At around 50 lbs or less for each module, I can easily move and setup this solar powered generator solution without wrenching my back. I now have a quiet, efficient Backup power during those unexpected power outages. With just the Delta Max I had around 4 hours of battery backup run-time. I am talking about powering every thing in my home except those devices that require 2-phase power. With 2 additional smart batteries I now expanded my capacity to 6kWh and have roughly 12 hours of runtime. I purchased 4ea Ecoflow 110 watt solar panels and plan to build a portable frame to put them in my front yard to charge up the batteries using solar power. In addition, I purchased a Generac 7117 Gp2200I W 50St Inverter generator that weights around 47 Lbs. It’s light and easy to move around. It’s very quiet and extremely gas efficient. I use it to charge up the solar generator batteries when there is not enough sun light. I live in the PNW so it’s not the sunniest place in the USA especially during the winter months. The Delta Max has a smartphone application that connects via bluetooth that I use to determine my power consumption, run-time remaining and many other aspects for controlling the solar generator environment, including doing firmware updates as required. One neat feature of the application is that I can control how much power the solar generators demands of the gas generator while recharging the batteries. The solar generator can demand as much as 1800 watts of power during a charge cycle. I like to limit this to 1300 watts. This lowers gas consumption and noise on the gas generator during a charge cycle. The Delta Max has the ability to provide 3400W of power with ease using X-Boost technology. This allows the concurrent use of power hungry device like microwave, fridge, heater, dish washer. ect… You can use the application to stay at or below the 3400W limitations. For me it was easly achieved. I even keep my bidets powered during power outages. I just put them in low power consumption mode. Do your homework and be smart. Determine your wattage requirements for all of the items you want to power up during a power outage and then determine the worst case aggregate power requirements and you’ll be able to determine what devices can run concurrently using the Delta Max during a prolonged power outage. Use this link to purchase a cable to connect the Delta max to your existing Generator power transfer switch: https://www.amazon.com/gp/product/B08H85RQ6X/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1 I really like and am impressed with the products that ECOflow manufacture. I am very tech savvy and a DYI guy so it wasn’t hard for me to research and integrate this product for a reliable and safe electrical backup solution. I haven’t had any issues using this solution during several outages since installing it. I haven’t had the need to call their tech support so I can’t comment on there abilities to support the product. I did my homework thought and it seems that they have their stuff together for good customer service and support. ... show more
Reviewed in the United States on January 14, 2022 by Jose Santiago Jose Santiago
    • In Use for over a year now
Bought 4 of these to back up my Delta Max. All have been in use for over a year now and ran daily from 800 watt solar panels. They have been working great and doing their job. On a sunny day, I will run these for about 6 hours producing around 4kw of energy per set. Not a ton of offset to our power bill, but also work great in a power outage situation to run most of the house. ... show more
Reviewed in the United States on August 19, 2024 by GadgetMan
    • I had no issues with it, but the app
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I received this unit just before going on a week long camping trip and figured it out in a day. The only part I've never gotten to work is the app and to be honest I didn't need it. If you review it online you'll find its working 1 in 5 people. Tech support couldn't help me and I will try them again later. The unit work for me in 90-100 degree weather without any issues! I rarely heard the fans running. When I did hear them I was right next to them or I was charging the unit by electrical outlet. I had the solar panels which work if you can get them in full sun. I couldn't because of where I was camping. Shade or direct sun was my choice and I chose shade! The unit powered my CPAP, fan and charged all my electronic devices for 6 days before needing to be recharged. I eventually ran a Keurig on it as well and still had plenty of power available to me. I could've gone the entire trip without recharging the unit, but decided to do it just in case. This unit is heavy and you don't want to drop it on your foot. It's insulated so it won't ground out if left on the ground or in a tent. I found it to be very sturdy and easy to use. I never had it turn off when I was using it. However, if I left it on with nothing running it turned off after 30 minutes which worked for me. I charged it on my balcony when I returned home. The unit comes with a long cord for solar panels. I had enough cord length I could leave the unit inside and the solar panels outside and still have almost 3 feet of cord. The day was cloudy so it took a while to charge. In full direct sun I saw one charge in hours. I would recommend this unit to anyone going camping. We bought this unit because we went to a state park and plugged into the outlet at the site which fried everything! The outlet was bad and ever since we've wanted to free ourselves from the need of electricity and I believe we have found it. ... show more
Reviewed in the United States on June 30, 2023 by Jes_074 Jes_074
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Do not waste your money or time
Reviewed in the United States on August 16, 2024 by Amazon Customer

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