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expiredDavid_David posted Sep 25, 2025 05:01 PM
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expiredDavid_David posted Sep 25, 2025 05:01 PM

EcoFlow DELTA 3 Series 1024Wh Smart Extra Battery

+ Free Shipping

$286

$599

52% off
EcoFlow
47 Comments 15,989 Views
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Deal Details
EcoFlow has EcoFlow DELTA 3 Series 1024Wh Smart Extra Battery on sale for $439 -> now $409 - $122.70 with discount code EFACC30 at checkout = $307.30 -> now $286.30. Shipping is free.

Thanks to Community Member David_David for sharing this deal.

About this Item:
  • Increase the capacity of DELTA 3 Plus/DELTA 3 with an extra 1024Wh.
  • Get 10 years of daily use until it hits 80% of its original capacity. Embrace 3000+ charging cycles enabled by the LFP battery chemistry.
  • Plug-and-play system. Use the EcoFlow app to monitor and control the DELTA 3 Smart Extra Battery.
  • With one of the most comprehensive 5-year warranties available, we go the extra mile to give you peace of mind

Editor's Notes

Written by SubZero5 | Staff
  • This offer is $91 less than the recent FP deal.
  • Rated 5 out of 5 stars from customer reviews.

Original Post

Written by David_David
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
EcoFlow has EcoFlow DELTA 3 Series 1024Wh Smart Extra Battery on sale for $439 -> now $409 - $122.70 with discount code EFACC30 at checkout = $307.30 -> now $286.30. Shipping is free.

Thanks to Community Member David_David for sharing this deal.

About this Item:
  • Increase the capacity of DELTA 3 Plus/DELTA 3 with an extra 1024Wh.
  • Get 10 years of daily use until it hits 80% of its original capacity. Embrace 3000+ charging cycles enabled by the LFP battery chemistry.
  • Plug-and-play system. Use the EcoFlow app to monitor and control the DELTA 3 Smart Extra Battery.
  • With one of the most comprehensive 5-year warranties available, we go the extra mile to give you peace of mind

Editor's Notes

Written by SubZero5 | Staff
  • This offer is $91 less than the recent FP deal.
  • Rated 5 out of 5 stars from customer reviews.

Original Post

Written by David_David

Community Voting

Deal Score
+42
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46 Comments

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Sep 26, 2025 12:14 AM
53 Posts
Joined Sep 2018
SanDiegoLeoSep 26, 2025 12:14 AM
53 Posts
Will this work on EcoFlow DELTA 3 Premium 1500 Portable Power Station from Costco.
Sep 26, 2025 12:34 AM
187 Posts
Joined Jul 2014
eurhmhomSep 26, 2025 12:34 AM
187 Posts
Quote from SanDiegoLeo :
Will this work on EcoFlow DELTA 3 Premium 1500 Portable Power Station from Costco.
It will, but see my comment above.
Sep 26, 2025 01:16 AM
146 Posts
Joined Jan 2010
tdm850Sep 26, 2025 01:16 AM
146 Posts
Will I be able to use alternator charger to charge both batteries?
Sep 26, 2025 02:00 AM
1,278 Posts
Joined Jul 2016
BerMM2Sep 26, 2025 02:00 AM
1,278 Posts
Crud. Just got the Delta 2 Extra Battery a couple months ago. The shortness of this one would be a big advantage. What do you think the near new Delta 2 EB would go for on FB Marketplace?
Sep 26, 2025 03:26 AM
562 Posts
Joined Aug 2009
xcougarSep 26, 2025 03:26 AM
562 Posts
Quote from eurhmhom :
It will, but see my comment above.
any chance this battery can go below the d3 1500 with its own default cable ?
Sep 26, 2025 04:28 AM
82 Posts
Joined Oct 2014
evilsweepsSep 26, 2025 04:28 AM
82 Posts
Yes but each connected separately, at least with the delta 3 plus (my use case) as there is only one "extra battery" port which the alternator charger also uses. Some of the max units might have 2 "extra battery" ports where you can charge simultaneously with the alternator charger
Sep 26, 2025 05:07 AM
218 Posts
Joined Dec 2004
digablesoulSep 26, 2025 05:07 AM
218 Posts
I gotta stop visiting SD. Although i have a lifepo4 battery to supplement my D2.. I just couldn't pass this up.. good price!

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Sep 26, 2025 05:26 AM
1,333 Posts
Joined Jan 2013
Snakeyes77Sep 26, 2025 05:26 AM
1,333 Posts
I have enough batteries.. I have enough batteries.. but this is a really good deal!!
1
Sep 26, 2025 07:12 AM
191 Posts
Joined Mar 2018
PlutomaniaSep 26, 2025 07:12 AM
191 Posts
Larger Delta 3 Max units are coming out soon. Probably have way too much stock of the EB. People are likely better off buying a Max unit instead of a Delta 3 Plus + EB.
Sep 26, 2025 01:15 PM
187 Posts
Joined Jul 2014
eurhmhomSep 26, 2025 01:15 PM
187 Posts
Quote from xcougar :
any chance this battery can go below the d3 1500 with its own default cable ?
Double checked and with normal orientation it would not be possible. However, if you stacked the extra battery on the top or bottom with it facing backwards, the cord would connect without issue.

You wouldn't see the power indicator light or charging progress on the extra battery, but it would work. The cord would just be sticking out the front of course, so it would only affect aesthetics if that mattered to you.

One other thing to note is that the charging light on the front of this extra battery is noticeably brighter than any lights on the main unit. There is no way to dim or turn it off.
Last edited by eurhmhom September 26, 2025 at 07:18 AM.
1
Sep 26, 2025 03:17 PM
742 Posts
Joined Aug 2006
kfpworldSep 26, 2025 03:17 PM
742 Posts
Quote from savenmaven :
I thought I got a good deal at $400 a couple weeks ago. This is a killer deal. And a great battery. I like the delta 3 plus because of the ability to have two 500w solar connections yet still be very portable.
U got a good deal this is add on battery. Year 1000w solar is much better then 500w
Sep 26, 2025 06:19 PM
1,359 Posts
Joined Sep 2010
dudezzSep 26, 2025 06:19 PM
1,359 Posts
Quote from stradlin :
I see that it lists compatibility with the Delta 2 but not the Delta 2 Max. Why wouldn't it work with the Max? My understanding is it's basically the same unit as the Delta 2 with more capacity and extra ports...
Battery can't supply maxs output. From what I remember, if there's a delta 3 max extra battery, it'll work with delta 2. Battery can output whatever delta 2 needs. Now if delta 3 max asks delta 3 battery for this much power, it'll can't produce the amps it needs
Sep 27, 2025 05:54 AM
43 Posts
Joined Sep 2016
ConnieS6874Sep 27, 2025 05:54 AM
43 Posts
Good price
Sep 27, 2025 04:38 PM
15 Posts
Joined Mar 2012
dw2004Sep 27, 2025 04:38 PM
15 Posts
Just bought it to go with my Delta 3 Plus. Although a little messy, I'll be swapping out my existing extra EcoFlow battery when it gets low and my 800W solar charging isn't available 😀.

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Sep 27, 2025 07:36 PM
587 Posts
Joined Dec 2007
ahannanSep 27, 2025 07:36 PM
587 Posts
Anyone get a shipping notification yet?

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