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frontpageDr.W posted Mar 01, 2026 08:29 AM
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Item 1 of 2
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 23,248 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 02, 2026 08:34 AM
90 Posts
Joined Sep 2016
g100Mar 02, 2026 08:34 AM
90 Posts
Quote from Lekz :
What do y'all use these for? Camping? Solar backup?
You can use them for anything really. Used 2 to make a van build, could also get this with an alt charger and set up few 12v items in a smaller truck build but the all in one batteries like Jackery are getting cheaper as well so those are more portable. But if you put a couple of these together, that's some decent ah for something offgrid. not sure how well it translates to saving on energy bill at home with your own solar. Thats probably when you step it up to full home battery systems.
Mar 02, 2026 01:22 PM
773 Posts
Joined Feb 2015
jaejoonaaMar 02, 2026 01:22 PM
773 Posts
Can this be used as a backup battery for sump pump?
Mar 02, 2026 03:14 PM
6 Posts
Joined Feb 2020
rippleish20Mar 02, 2026 03:14 PM
6 Posts
Quote from Tazmania99 :
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....
I bought one of those refurbed 800W alternator charger from ebay and it also was new in box
Mar 02, 2026 05:15 PM
153 Posts
Joined Dec 2012
FrankN3279Mar 02, 2026 05:15 PM
153 Posts
Would this work for boat battery?
Mar 02, 2026 06:07 PM
35 Posts
Joined Apr 2011
horstdeppMar 02, 2026 06:07 PM
35 Posts
Quote from wnoble :
Wonder if I could use one of these for back up power for my tankless water heater?
Yes-- assuming you mean gas tankless. This is my exact use case. My gas tankless uses about 100w max, <10w while idle. Battery is connected through the XT60i port of an Anker power station. So at 2 hours of hot water per day, the 3584 Wh battery provides 10+ days backup.
The tankless water heater is great overall, except for the instant loss of hot water when the power goes out!
Mar 02, 2026 10:43 PM
332 Posts
Joined Sep 2014
Bayamon62Mar 02, 2026 10:43 PM
332 Posts
Quote from FrankN3279 :
Would this work for boat battery?
Not a starter battery.
Mar 03, 2026 12:02 AM
395 Posts
Joined Aug 2008
japanesegorillaMar 03, 2026 12:02 AM
395 Posts
Quote from FrankN3279 :
Would this work for boat battery?
For electronics or an electric trolling motor, yes, it would be great. Almost none of these lithium batteries that you see are meant to start your motor. They don't have the amps for it. Don't hook them up to your motor either to charge from the alternator as they will fry your alternator by drawing way more current than it can put out. It's possible to charge them from the alternator but you would need to install a DC to DC charger to limit the current draw by the battery.

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Mar 03, 2026 12:10 AM
7 Posts
Joined Nov 2015
taha.subscribeMar 03, 2026 12:10 AM
7 Posts
Can this be used to run a 1500w space heater? What extra accessories will be needed?
Mar 03, 2026 12:50 AM
93 Posts
Joined Jan 2008
thriftshopdeluxMar 03, 2026 12:50 AM
93 Posts
Watched a guy do a breakdown of a bunch of different brands, many seemed to be similar. Nice to see prices coming down
Mar 03, 2026 01:06 AM
200 Posts
Joined Jun 2023
JD713Mar 03, 2026 01:06 AM
200 Posts
Quote from taha.subscribe :
Can this be used to run a 1500w space heater? What extra accessories will be needed?
This battery has 3584 Watt Hour / 1500 Watt heater = 2 Hour 20 Minutes of use time

Accessories needed: INVERTER and CHARGER
Mar 03, 2026 03:02 AM
169 Posts
Joined Sep 2007
DhinchakMar 03, 2026 03:02 AM
169 Posts
Can this charge the the regular packaged 3k battery with inverter (like pecron) -- just thinking whether this can be used to charge another integrated battery pack in case of emergency
Mar 03, 2026 04:07 AM
11 Posts
Joined Dec 2022
NagiDeshouMar 03, 2026 04:07 AM
11 Posts
isn't this battery on sale pretty frequently? Seen it pop up a couple of times now
Mar 03, 2026 04:38 AM
78 Posts
Joined Jul 2008
pftomoMar 03, 2026 04:38 AM
78 Posts
Quote from Dhinchak :
Can this charge the the regular packaged 3k battery with inverter (like pecron) -- just thinking whether this can be used to charge another integrated battery pack in case of emergency
Probably, there's a bunch of great videos on YouTube that show how to do it with various units
Mar 03, 2026 07:41 AM
2 Posts
Joined Oct 2025
Lalo45Mar 03, 2026 07:41 AM
2 Posts
Pretty good deal

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Mar 03, 2026 09:45 AM
159 Posts
Joined Dec 2010
tonightMar 03, 2026 09:45 AM
159 Posts
Quote from rippleish20 :
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
Could it be some sort of tariff related thing?

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