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iconian | Staff 26.8K Views
Jul 1, 2026 7:11 AM

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

$222

$399

44% off
+ Free S/Hat AliExpress
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Deal Details
Update: This popular deal is available again.

ECOWORTHY-US Store via AliExpress has ECO-WORTHY 3584Wh 12V 280Ah Smart LiFePO4 Battery w/ Bluetooth on sale for $256.99 - $35 with promo code DEALUS35 at checkout = $221.99. Shipping is free.

Thanks to Deal Editor iconian for sharing this deal.

Note: Promo code is valid for select accounts only. 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)
Expired promo code:
  • USDEAL35

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 iconian | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular deal is available again.

ECOWORTHY-US Store via AliExpress has ECO-WORTHY 3584Wh 12V 280Ah Smart LiFePO4 Battery w/ Bluetooth on sale for $256.99 - $35 with promo code DEALUS35 at checkout = $221.99. Shipping is free.

Thanks to Deal Editor iconian for sharing this deal.

Note: Promo code is valid for select accounts only. 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)
Expired promo code:
  • USDEAL35

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 iconian | Staff

Community Voting

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Top Comments

Community Reviews

This ECO-WORTHY 12V 280Ah LiFePO4 battery stands out as a very low-cost way to get a large smart battery with Bluetooth monitoring. The app can show charge state and estimated runtime, and real-world use includes camper, boat, fridge, and backup power setups. Pricing context makes the $222 tag look unusually strong versus typical $350 plus pricing. Main cautions are the heavy weight, lithium charging requirements, and reports that checkout pricing, codes, and availability can change quickly.

Common Questions (5)

  • The deal has been intermittent: some checkouts worked, while others jumped from $222 to about $350, showed expired discounts, or returned a security error. A $35 code and an extra PayPal Pay Later discount were also reported, but the code has been used up in some cases.

  • It is sold by Eco-Worthy on AliExpress and ships from the US. Several orders from the same EcoWorthy-US store were received without issues, and the seller has been described as legitimate rather than a third-party reseller.

  • Yes, it can run 12V fridges and other 12V equipment directly, and users have paired it with solar and MPPT charging for longer runtime. For 120V appliances, you need an inverter and the supporting wiring.

  • A full-charge resting voltage around 13.5V is normal, but balancing requires charging to about 14.2-14.6V and holding it there. Individual cells should stay roughly between 3.55V and 3.65V, and a lithium-capable charger is required.

  • Check that the Bluetooth app connects, the charged resting voltage is about 13.1-13.4V, and the battery weight is close to the listed 61.7 lb. A unit arriving around 35-40 lb would be a red flag.

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77 Comments

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Jul 5, 2026 11:47 PM
390 Comments
Joined May 2014
stevesavesJul 5, 2026 11:47 PM
390 Comments
Shows $381.29 for me and $371 if I log out... deal dead?
Jul 6, 2026 1:07 AM
121 Comments
Joined Sep 2009
Grogan14Jul 6, 2026 1:07 AM
121 Comments
Quote from stevesaves View quoted comment :
Shows $381.29 for me and $371 if I log out... deal dead?
The standard one shows $256.99 for me right now, plus the $35 off $249 code avaliable.
Jul 6, 2026 1:41 AM
177 Comments
Joined Mar 2022
TrancendentalOJul 6, 2026 1:41 AM
177 Comments
Quote from Adamm345 View quoted comment :
I'm looking at two of these for a 24V trolling motor, anyone have experience with them in this capacity?
For the community: I have 2x Eco-W 150ah in My camper 24v setup. Very happy with them so far.
Jul 6, 2026 2:48 AM
177 Comments
Joined Mar 2022
TrancendentalOJul 6, 2026 2:48 AM
177 Comments
Quote from stevesaves View quoted comment :
might be a dumb question, but my "car battery" in my camper just overdischarged and i think has a bad cell now... before i just routinely buy a new Duralast for it, would something like this battery be better actually? (this is not an rv, just a camper). I believe my appliances and slideout are 12v DC. New to camper ownership, so sorry if that's a dumb question.
Yes, 1000 times yes. Soooo much better, on so many levels. Sorry to sound hyperbolic, but it's accurate. Just leave LeadAcid behind and go LiFePO. Literally all upside: more capacity, more/weight, more/$(finally), more durable, better voltage performance, cold, etc etc
Jul 6, 2026 1:42 PM
550 Comments
Joined Nov 2004
mblitchJul 6, 2026 1:42 PM
550 Comments
Quote from Adamm345 View quoted comment :
I'm looking at two of these for a 24V trolling motor, anyone have experience with them in this capacity?
Keep in mind two of them in series would add ~ 125lb in weight. These aren't small.
Jul 6, 2026 1:45 PM
550 Comments
Joined Nov 2004
mblitchJul 6, 2026 1:45 PM
550 Comments
Quote from stevesaves View quoted comment :
might be a dumb question, but my "car battery" in my camper just overdischarged and i think has a bad cell now... before i just routinely buy a new Duralast for it, would something like this battery be better actually? (this is not an rv, just a camper). I believe my appliances and slideout are 12v DC. New to camper ownership, so sorry if that's a dumb question.
Absolutely. These are superior in every way compared to wet or AGM batteries. You just need a lithium-capable charger.
Jul 6, 2026 8:15 PM
155 Comments
Joined Mar 2019
Mark34204Jul 6, 2026 8:15 PM
155 Comments
These would be great for the "house" battery of a camper, but they won't serve as an engine starting battery. They are also limited by temperatures below freezing, so that may or may not matter to you. Additionally, they also have a slightly different charging requirement than lead acid. Just things to pay attention to when you do the switch.
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Jul 6, 2026 11:35 PM
79 Comments
Joined Apr 2011
rukiriJul 6, 2026 11:35 PM
79 Comments
Ordered on July 3, still says "processing" and they promise it will ship by the 14th.
Today on the product page it says if I order now it will arrive between the 8th and 13th...
Jul 7, 2026 2:16 AM
2K Comments
Joined Oct 2006
revere04Jul 7, 2026 2:16 AM
2K Comments
Can I hook this up to my Anker C2000 gen 2 to give if extended run time?
Jul 7, 2026 3:57 AM
390 Comments
Joined May 2014
stevesavesJul 7, 2026 3:57 AM
390 Comments
Cool thanks for the responses y'all! Ordered one (was able to get the deal on my phone with the app, but desktop site was higher priced). Ordered a drop-in lithium converter for the camper too. Excited!
Jul 7, 2026 12:24 PM
196 Comments
Joined Dec 2004
fluffyveeJul 7, 2026 12:24 PM
196 Comments
Thanks
Jul 7, 2026 1:38 PM
640 Comments
Joined Aug 2012
LetsDoSlickJul 7, 2026 1:38 PM
640 Comments
Says deal not available in my location in the app, am in the US... Is there any setting to change?
Jul 8, 2026 2:15 PM
43 Comments
Joined Nov 2015
ponicatthediscoJul 8, 2026 2:15 PM
43 Comments
Ordered this immediately after it was posted and the seller rescheduled out to let me know the plastic version was out of stock. They upgraded me to the metal version at no cost, x2! Saved over $200 from the time it was priced.
Jul 8, 2026 2:28 PM
43 Comments
Joined Nov 2015
ponicatthediscoJul 8, 2026 2:28 PM
43 Comments
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Jul 11, 2026 8:39 PM
506 Comments
Joined Mar 2005
chachachaJul 11, 2026 8:39 PM
506 Comments
Got mine today, now looking for a good wall charger...the "AI" says to go with a LiTime 14.6V 40A LiFePO4 Charger for best/safe performance, which goes for around $175. Anything better? Thanks.

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