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frontpageDr.W posted Mar 01, 2026 08:29 AM
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frontpageDr.W posted Mar 01, 2026 08:29 AM

ECO-WORTHY 3584Wh 12V 280Ah Smart LiFePO4 Battery w/ Bluetooth

+ Free Shipping

$225

$718

68% off
AliExpress
84 Comments 23,529 Views
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Deal Details
ECOWORTHY-US Store via AliExpress has ECO-WORTHY 3584Wh 12V 280Ah Smart LiFePO4 Battery w/ Bluetooth on sale for $260.30 - $35 with promo code USDEAL35 at checkout = $225.30. Shipping is free.

Thanks to community member Dr.W for sharing this deal.

Note: Price may fluctuate slightly with currency exchange rates. You must be signed into your AliExpress account and have your address added to add items to your cart and place an order. You may have to manually type in the promo code to apply it at checkout. This item ships from a USA warehouse. For expedited customer service, please email [email protected].

Product Details:
  • Bluetooth and remote app monitoring to read the battery voltage, current, battery capacity and other important information
  • 200A BMS with multiple protections, including low-temperature protection (charging cut-off 19.4 F)
  • Supports up to 4 batteries in parallel, providing 1120Ah at 12V ideal for RVs, or 4 in series ideal for 48V solar power systems
  • High-strength metal frame, Grade A cells
  • 6000-15000 long life cycles & 10-Year life
  • 17.8 x 9.37 x 8.7" (61.7 lbs)

Editor's Notes

Written by StrawMan86 | Staff
  • About this deal:
  • About this product:
    • Rated 4.9 out of 5 stars based on over 95 AliExpress customer reviews.
  • Additional notes:
    • Please see the original post for additional details & give the wiki and additional forum comments a read for helpful discussion.

Original Post

Written by Dr.W
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
ECOWORTHY-US Store via AliExpress has ECO-WORTHY 3584Wh 12V 280Ah Smart LiFePO4 Battery w/ Bluetooth on sale for $260.30 - $35 with promo code USDEAL35 at checkout = $225.30. Shipping is free.

Thanks to community member Dr.W for sharing this deal.

Note: Price may fluctuate slightly with currency exchange rates. You must be signed into your AliExpress account and have your address added to add items to your cart and place an order. You may have to manually type in the promo code to apply it at checkout. This item ships from a USA warehouse. For expedited customer service, please email [email protected].

Product Details:
  • Bluetooth and remote app monitoring to read the battery voltage, current, battery capacity and other important information
  • 200A BMS with multiple protections, including low-temperature protection (charging cut-off 19.4 F)
  • Supports up to 4 batteries in parallel, providing 1120Ah at 12V ideal for RVs, or 4 in series ideal for 48V solar power systems
  • High-strength metal frame, Grade A cells
  • 6000-15000 long life cycles & 10-Year life
  • 17.8 x 9.37 x 8.7" (61.7 lbs)

Editor's Notes

Written by StrawMan86 | Staff
  • About this deal:
  • About this product:
    • Rated 4.9 out of 5 stars based on over 95 AliExpress customer reviews.
  • Additional notes:
    • Please see the original post for additional details & give the wiki and additional forum comments a read for helpful discussion.

Original Post

Written by Dr.W

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Deal Score
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Top Comments

DealMongr
167 Posts
25 Reputation
I use these to augment my EcoFlow power stations through the PS's XT60i connection and I charge these from solar panels through a charge controller.
epix1718
486 Posts
150 Reputation
Wow these just keep getting cheaper and cheaper..

April 2024 paid $466 for a 300Ah
October 2024 paid $326 for a 300Ah
rippleish20
6 Posts
10 Reputation
The price is now $260 but the code CD35US gives $35 off but it ends up the same - $225. They seem to mysteriously make back $10, however, with "additional" charges, which are supposedly tax but my tax is 8% and $260 x .08 = $20.06 but the additional charges are $30.36

84 Comments

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Mar 01, 2026 05:30 PM
1,155 Posts
Joined Nov 2016
cmacclelMar 01, 2026 05:30 PM
1,155 Posts
Quote from wnoble :
Wonder if I could use one of these for back up power for my tankless water heater?
Tankless water heaters draw excessive current. You would need multiples of these along with an expensive inverter. You'd be lucky to get into something for that purpose all in for under $1k.
1
Mar 01, 2026 05:31 PM
238 Posts
Joined Feb 2008
dgt02Mar 01, 2026 05:31 PM
238 Posts
Is it UL or ETL Listed or is it a delay triggered flamethrower?
1
5
Pro
Mar 01, 2026 05:56 PM
4,813 Posts
Joined Feb 2006
Tazmania99
Pro
Mar 01, 2026 05:56 PM
4,813 Posts
I got this for $237 last month as a backup battery of my Ecoflow D2's. Got a refurbed 800W alternator charger for $199 from eBay which was received just like brand new. Now I can have 3584Wh backup power with 800W charging speed for dirt cheap. Thinking to get another battery again....
Mar 01, 2026 06:16 PM
417 Posts
Joined Apr 2015
SurferdudemiMar 01, 2026 06:16 PM
417 Posts
Quote from dgt02 :
Is it UL or ETL Listed or is it a delay triggered flamethrower?
LiFePO4 is relatively safe. They don't ignite like NMC Li-ion. I've only heard of one instance where a house fire (in Germany, iirc) was initially attributed to the LiFePO4 batteries, but I don't know the final outcome of the investigation. diysolarforum is a good source of info on all this stuff. As with any other large battery, you need to make sure the terminals don't get shorted, because they can dump a lot of energy in a short period of time. Fuses are a good idea.
Mar 01, 2026 06:17 PM
417 Posts
Joined Apr 2015
SurferdudemiMar 01, 2026 06:17 PM
417 Posts
Quote from epix1718 :
Wow these just keep getting cheaper and cheaper..

April 2024 paid $466 for a 300Ah
October 2024 paid $326 for a 300Ah
I picked one up last Fall for $221. So this sale is about on par.
Mar 01, 2026 06:23 PM
417 Posts
Joined Apr 2015
SurferdudemiMar 01, 2026 06:23 PM
417 Posts
Quote from placez :
i bought 4 of these, does anyone have a guide on connecting these together and to a solar inverter
You don't provide enough information about your application. Are you replacing an existing setup? THere are two main ways to use them: parallel and series. If you already have a 12v inverter, then you have to connect them in parallel with 3 pairs of 2 AWG (or bigger, depending on the output power of the inverter) cables. If you have a 48v inverter, then connect them in series with 3 single 2 AWG cables. If you don't have an inverter, I suggest a 48v inverter, because I think that's more efficient. Is your application grid-tied or off-grid? That determines what kind of inverter you get.
1
Mar 01, 2026 07:30 PM
33 Posts
Joined Feb 2015
darksignerkiryuMar 01, 2026 07:30 PM
33 Posts
Considering buying this to increase the capacity of my Oupes Exodus 2400, according to my research I should be able to connect it to the solar input of my power station, does this work? Also what kind of charger would I need to recharge this battery?

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Mar 01, 2026 07:33 PM
985 Posts
Joined Jun 2009
greenshellMar 01, 2026 07:33 PM
985 Posts
Quote from wnoble :
Wonder if I could use one of these for back up power for my tankless water heater?
Tankless water heater sounds expensive to have
Mar 01, 2026 07:52 PM
49 Posts
Joined Feb 2007
chadwickedMar 01, 2026 07:52 PM
49 Posts

Our community has rated this post as helpful. If you agree, why not thank chadwicked

Quote from wnoble :
Wonder if I could use one of these for back up power for my tankless water heater?
Gas Tankless Water Heater yes with an inverter. Electric Tankless Water Heater won't be practical
1
Mar 01, 2026 08:05 PM
6 Posts
Joined Jan 2024
CrimsonTable1297Mar 01, 2026 08:05 PM
6 Posts
Sorry, the coupon code you entered is based on a first come first served basis and has been used up by other shoppers. Please enter a different coupon code or explore other discounts on AliExpress.
Mar 01, 2026 08:29 PM
132 Posts
Joined Oct 2010
joeyv821Mar 01, 2026 08:29 PM
132 Posts
Dammit missed another one!

Sorry, the coupon code you entered is based on a first come first served basis and has been used up by other shoppers. Please enter a different coupon code or explore other discounts on AliExpress.

Tried the coupon from aliexpress that was 35 off 230+ and got the same message Frown
Mar 01, 2026 09:07 PM
200 Posts
Joined Jun 2023
JD713Mar 01, 2026 09:07 PM
200 Posts
Quote from placez :
Do you happen to have a pic of your setup?
Probably like method that show in YouTube below:
https://www.youtube.com/watch?v=Dmhp8_b8GQI
Mar 01, 2026 09:22 PM
272 Posts
Joined May 2005
placezMar 01, 2026 09:22 PM
272 Posts
Quote from Surferdudemi :
You don't provide enough information about your application. Are you replacing an existing setup? THere are two main ways to use them: parallel and series. If you already have a 12v inverter, then you have to connect them in parallel with 3 pairs of 2 AWG (or bigger, depending on the output power of the inverter) cables. If you have a 48v inverter, then connect them in series with 3 single 2 AWG cables. If you don't have an inverter, I suggest a 48v inverter, because I think that's more efficient. Is your application grid-tied or off-grid? That determines what kind of inverter you get.
yes im going to get a 48v inverter, with at least a 500v solar input. I want to hook this up to a transfer switch that will going to run lower watt thins, lights under 1000 watts
Mar 01, 2026 09:32 PM
33 Posts
Joined Feb 2015
darksignerkiryuMar 01, 2026 09:32 PM
33 Posts
Quote from joeyv821 :
Dammit missed another one!

Sorry, the coupon code you entered is based on a first come first served basis and has been used up by other shoppers. Please enter a different coupon code or explore other discounts on AliExpress.

Tried the coupon from aliexpress that was 35 off 230+ and got the same message Frown
Try IFPJJUEX
2

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Mar 01, 2026 09:37 PM
200 Posts
Joined Jun 2023
JD713Mar 01, 2026 09:37 PM
200 Posts
Quote from darksignerkiryu :
Considering buying this to increase the capacity of my Oupes Exodus 2400, according to my research I should be able to connect it to the solar input of my power station, does this work? Also what kind of charger would I need to recharge this battery?
Here is video show you how:
https://www.youtube.com/watch?v=Dmhp8_b8GQI

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