DELTA Pro Smart Extra Battery

Shipped and sold by Ecoflow
4.8 (79)
$2,799.00
234/mo.* suggested payments for 12-months totaling $2,799.00 with Macy's Card. *

Product details

Web ID: 16546540

Expandable capacity This add-on battery connects with a DELTA Pro to double total capacity to 7200Wh. Connect two of them to DELTA Pro for a staggering 10.8kWh to use off-grid.

  • Product Features

    • Expand capacity up to 10.8kWh with 2 extra batteries
    • Convenient recharging with DELTA Pro: AC, solar, Smart Generator, car charging, EV charging
    • Long-lasting LFP battery
    • LCD screen Get all the same info about battery percent, remaining recharge time, hours left, and more on the built-in screen.
    • These battery units become part of your home s peak shaving and emergency power solutions.Ready for emergencies.
    • Imported
    • Request warranty information
  • Shipping & Returns

    • This item qualifies for Free Shipping with minimum purchase! exclusions & details
    • Orders will not ship in Macy’s packaging.
    • Returns must be mailed back to seller within 30 days of purchase. Exclusions may apply.
    • This item may not be shipped to Alaska, American Samoa, Guam, Hawaii, Marshall Islands, U.S. Virgin Islands, Puerto Rico, Palau, or the Pacific Islands.
    • This product will be delivered by Standard Ground Shipping and is not eligible for Premium or Overnight shipping.
    • This item has a lithium battery. Return requires a hazmat label and special packaging. If there's an issue, bring the item in store for help with your return.
    • California and Minnesota customers call 1-800-289-6229 for Free Shipping information.
    • For complete details, see our Shipping and Returns policies.
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Ratings & Reviews

4.8/5

79 star ratings & reviews

Write a Review
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2 months ago
from Fort Myers Florida

EcoFlow Delta pro extra battery

I have the Delta pro and one extra battery at the moment and I'm looking to purchase a second battery. I like everything about the units except what another reviewer said, the cable to hook the extra battery up it's so short the extra batteries have to be on the two sides of the Delta pro power station. I have them in a small laundry room on a shelf and I wanted to put the extra battery on the shelf but since the cable is only 3.2 ft or meter long I can only put one battery on the shelf above the Delta pro power station. So if I want to add another battery it will have to be on the floor right next to the power station for the cable to reach. Unfortunately then my dryer door will not open more than a third. They said I could buy the 16-ft cable with the smart battery adapter which is way too long. Can't we just get a seven or eight foot cable I hear a lot of people with the same issue. I'm sure 16 ft cable plus smart battery adapter isn't cheap either. And then there's 16 feet of cable to have hanging around. That's the only reason I took one star off everything else is great but I'm in a bind hooking up the extra battery with one option, buy 16 ft cable with extra battery adapter. I called EcoFlow they have no intention of making a 8-ft cable or just one that would actually work. The ease of use is very easy but I took a star off because I had to take one off because no one thought of making a cable long enough to stack the batteries. And it's not some cord you just go in the store and buy one.

  • Photo from Handy
  • Photo from Handy
  • Photo from Handy

Customer review from ecoflow

4 months ago
from Florida

Size and Safety

Have 2 Delta Pro's and 3 Extra batteries. You can't beat their price, warranty and customer service, for a self contained unit that's safe to use!

Customer review from ecoflow

9 months ago
from Arizona

Delta pro

My delta pro after two months of use will no longer charge with solar and the LCD won't even turn on it still charges with the gen but I can't even connect to it

Customer review from ecoflow

11 months ago
from Macomb Michigan

Great user friendly

Glad i got the extra battery. Great product now the wife won't have to mess with the gas generator when im not at home.

  • Photo from Sparky 69

Customer review from ecoflow

1 year ago
from Michigan

Awesome

Absolutely love the Ecoflow system. Everything works perfect.

Customer review from ecoflow

1 year ago
from Northeast PA

My Only Delta Series Issue

I've purchased 20 different Delta series batteries and I give EcoFlow an A+ in every catagory except one. This regards my two Pro Batteries and two Pro Extra Batteries. The Extra Battery Cable (EBC) is of limited usefulness due to its short length. I want to mount the Pros and Extras on a two-shelf (top and bottom) heavy-duty utility cart (with four caster wheels). The current EBC will not allow this configuration because it is too short; also, for a proper fit, one connector should be rotated 180-degrees from the other. With the proper EBC, I'd have one Pro on the top shelf and two Extras on the bottom shelf of each utility cart, i.e., two carts with two identical set-ups for use with the 240V double-voltage Hub accessory. This would require me to purchase two more Extra Batteries. However, my entire design fails for the need of a little longer EBC -- a connecting cable! Customers have requested a longer EBC for at least two years and, still, EcoFlow has not responded to them in any way. Why? It is only a connecting cable! Will EcoFlow ever address this problem? I don't want to order two more Extra Batteries if EcoFlow has made a decision to never address this EBC shortcoming (so to speak).

Customer review from ecoflow

1 year ago

Love the Delta Pro

We have been using 2 Delta Pro and had an extra battery for each. As we Solar powered those, we realized we needed an additional battery. We are thrilled with performance and ease of use. We use them continuously and have reduced our power bill to 1/3 of what it was a year ago.

Customer review from ecoflow

1 year ago
from Alabama

Extra Battery Needs Longer Connecting Cable

If the cable connecting to the Delta Pro had been longer I would have given this EB a five star. But I had planned on putting the EB on the shelf below the DP and that was almost impossible. The only way I could do it was to effectively put the DP on top of the EB with a wire shelf squeezed in between them.

  • Photo from grannygeek
  • Photo from grannygeek

Customer review from ecoflow