EF ECOFLOW DELTA 2 Max Power Station Extra Battery, 2048Wh LiFePO4 (LFP) Battery, Compatible with DELTA 2&DELTA Max 2000&DELTA 2 Max Outdoor Generators
Condition: New
Buy Now, Pay Later
As low as
/ mo
Learn more
- – 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, 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:
In Stock.
Arrives
Friday, Dec 26
Recently Viewed
Style: DELTA 2 Max Extra Battery
Features
- Expandable Capacity. Increase the capacity of DELTA 2 Max with an extra 2048Wh.
- Triple the Power. 2-6kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 2 Max Smart Extra Batteries to hit a capacity of 6144Wh. Ideal for home backup, RVing, outdoors or even everyday use.
- Built to Last 6 Longer. Get 10 years of daily use until hitting 80% of its original capacity. Thats down to its LFP battery chemistry giving you 3000+ cycles.
Brand: EF ECOFLOW
Wattage: 2048 Watt-hours
Fuel Type: Electric
Power Source: Solar Powered
Recommended Uses For Product: Camping
Item Weight: 42 Pounds
Voltage: 120 Volts
Output Wattage: 2048
Special Feature: Expandable capacity
Included Components: EcoFlow DELTA Max Extra Battery
Brand: EF ECOFLOW
Wattage: 2048 Watt-hours
Fuel Type: Electric
Power Source: Solar Powered
Recommended Uses For Product: Camping
Item Weight: 42 Pounds
Voltage: 120 Volts
Output Wattage: 2048
Special Feature: Expandable capacity
Included Components: EcoFlow DELTA Max Extra Battery
Color: Black/Grey
Product Dimensions: 11"L x 9"W x 18"H
Model Name: DELTA 2 Max
Engine Type: 4 Stroke
Ignition System Type: Electronic
Engine Displacement: 79 Cubic Centimeters
Total Power Outlets: 6
EU Spare Part Availability Duration: 10 Years
Starting Wattage: 3400 Watts
UPC: 842783131614
Manufacturer: EcoFlow
Item Weight: 42 pounds
Item model number: EFD350
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Dec 26
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
This EcoFlow 2Max Extra Battery was delivered today and I am very pleased to say it so far functions very good and nothing was broken or damaged during the shipping and delivery process as before in a previous same purchase. I can confirm that the operation and functionality is exactly as described in the advertisement for this product and additional 2048 Watts to my solar generator system will definitely cover my electricity needs during this upcoming summer months and fire season when the main power supply grid is shutdown for public safety. I would recommend these devices be purchased for your homes in case of any future power outages because they are very efficient and and very easy to use and will save you money and discomfort during the upcoming months. Long story short, the EcoFlow company works with customers to help purchase their products by offering different types of payment plans that are compatible with many budgets so anyone can afford to pay for a important product that will help them during power outages that occur very frequently nowadays. Thank you (I’m pretty sure I will purchase one more extra battery so I can run my air conditioner when the heat is causing the power grid to be shut down and instead I will be enjoying my regular life without disruption and sweating in the heat waiting for the power company to turn back on the grid power supply to every house )
...
show more
Reviewed in the United States on February 21, 2025 by Mario Navarro Mario Navarro
Freak storms and power outages seem to be the norm these days. A year ago, I purchased the Delta 2 Max and added a battery to provide emergency power in the event of a blackout. I just added a second battery to ensure uninterrupted power. Ecoflow products are user friendly and very reliable. I power these with 2 400 watt solar panels and these have maintained a steady supply of power. I cannot say enough about the peace of mind that the Ecoflow system has brought to my household.
...
show more
Reviewed in the United States on September 11, 2025 by Daniel F. Moore
Plugged right in to my existing delta 2 max. Recognized it right away and began charging. Cable is in the door on the top by the way
Reviewed in the United States on November 1, 2025 by Rennoc
Prices finally reasonable when on a Black Friday sale. Perfect expansion for a great power station. Working flawless as expected
Reviewed in the United States on November 26, 2025 by Jeremy Hibbard
I really like this ecoFlow Delta 2 Max. I use it, especially, to back up refridgerator and/or freezer in a power outage. I've gone over 11 hours (before the power came back on). I don't want to use the generator (gas) at night, but want to keep the food safe. Fits the bill. Next stop: hooking up panels to charge it during the day.
...
show more
Reviewed in the United States on August 6, 2025 by Primavera Gardener
Update: now charging at 296 W. Much better.. originally charged it only 65 W so I contacted Eco flow. They claimed they would do an online update but after four weeks I had not seen it. Now some six months after giving up I plugged it in again to find it is now charging better. Perhaps the software update was done online. Still may take six hours to fully charge, but that’s much better than the 65 W charging speed it had before. Up to four stars on this review OLD REVIEW:Will only charge at 65 W… hooked up to my plugged in Eco flow Delta two unit. This unit charges at only 65 W taking over 24 hours to recharge with the combined unit plugged into a wall outlet. I contacted Eco flow and they said they would send a “firmware update” to the unit as it’s registered in the phone app. Well that’s been 2 1/2 weeks and nothing has happened. Until this is resolved, this is going to be a lousy unit too late to return it now I just plugged it in last week. Will probably discharge and add capacity but recharging this is ridiculously slow
...
show more
Reviewed in the United States on May 30, 2025 by Larry M. Larry M.
I wanted another battery for my existing Delta Max 2000. It is an older design using an NCM battery rather than the better LFP in this extra battery. Did some research and it looked like this battery would work with my older Delta Max 2000. Plugged it in and also my solar panels and the new battery appeared in the EcoFlow app showing 30% charge and everything worked great. Had about 700 watts coming in the solar input and the new battery charged to 100% in just over 2 hours.
...
show more
Reviewed in the United States on August 23, 2025 by David Loucks
I had my eye on this for some time and when it became $200 it's than the lowest sales price I had seen to date, I pounced. I like the Ecoflow system 48v LFP batteries so the wires so not over heat with no worries of exposed terminals and using the charger built into my DELTA 3 Plus. Yes it works perfectly with the D3 Plus, giving me an extra 2kwh rather than the 1kwh that comes with the D3 extra battery without the adapter or weight of the Pro's 4kwh option.
...
show more
Reviewed in the United States on August 5, 2025 by CPAChicago