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expiredDr.W posted Mar 16, 2026 07:09 AM
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expiredDr.W posted Mar 16, 2026 07:09 AM

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

+ Free S&H

$200.65 or Less

$589

AliExpress
98 Comments 28,962 Views
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Deal Details
ECOWORTHY-US Store via AliExpress has ECO-WORTHY 3584Wh 12V 280Ah Smart LiFePO4 Battery for $235.64 - $35 when you apply promo code ASUSDEAL35 at checkout = $200.64 (or less, see note below). Shipping is free.
  • Note: Select PayPal as your payment method to save an additional $15 off, bringing the total to $185.64 (see complete terms).
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 RevOne | Staff
  • About this deal:
    • This offer beats our previous Frontpage Deal from early March by $24.66 (before the additional $15 off w/ PayPal checkout offer).
  • 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 for $235.64 - $35 when you apply promo code ASUSDEAL35 at checkout = $200.64 (or less, see note below). Shipping is free.
  • Note: Select PayPal as your payment method to save an additional $15 off, bringing the total to $185.64 (see complete terms).
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 RevOne | Staff
  • About this deal:
    • This offer beats our previous Frontpage Deal from early March by $24.66 (before the additional $15 off w/ PayPal checkout offer).
  • 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 Voting

Deal Score
+91
Good Deal
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Top Comments

TheAppleTreeGuy
13 Posts
10 Reputation
I bought 4 of them, over 3 transactions, on one account. I used the coupon codes that were on their main page. (USAS35, for $35 off $219, and so on)Total with taxes and fees for $921.02. (this number total is charged to credit card). I'm not sure how the -15$ off works through paypal, but I used it with my Citi 2% cash back card. I also had the urlhasbeenblocked-app open which has a 20% payback. That should be another $184 off my total. And another $18 off with my 2% card. At $921 I will have a 48v battery bank at 280ah. That's insane. Hopefully the other discounts work and I will get it all 4 for $720ish. Sorry for the jibberish... Hope this helps someone.
Robika
484 Posts
155 Reputation
Lowest price I've seen. Thanks OP!!
CptSavAHo
889 Posts
207 Reputation
I have 3 of these on a bus to RV conversion that we mostly run in the winter. I was concerned about temps and being able to operate them in cold weather, and so far so good. We went as low as -30 F this winter and when the diesel gelled I was able to use a heat gun run off the batteries to warm the fuel system back up, get additives into the fuel system, and get everything running again.
We had to replace one shortly after receiving it that had a finicky Bluetooth module and didn't like to connect. The replacement was super fast and easy.
I plan to pull our remaining AGM batteries out, they're not worth the weight and space when these work so well.

Edit- I bought mine through their ebay site.

98 Comments

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Mar 16, 2026 08:07 PM
3,761 Posts
Joined Jan 2006
WasserMar 16, 2026 08:07 PM
3,761 Posts
Mind-boggling how quick these have fallen in price. Having Bluetooth monitoring is awesome.
Mar 16, 2026 08:28 PM
13 Posts
Joined Jan 2019
TheAppleTreeGuyMar 16, 2026 08:28 PM
13 Posts
In checkout for $213, with all the fees and taxes. Plus rakutens-extention says I get some $42.75 back.
Mar 16, 2026 08:43 PM
13 Posts
Joined Jan 2019
TheAppleTreeGuyMar 16, 2026 08:43 PM
13 Posts
I bought 4 of them, over 3 transactions, on one account. I used the coupon codes that were on their main page. (USAS35, for $35 off $219, and so on)Total with taxes and fees for $921.02. (this number total is charged to credit card). I'm not sure how the -15$ off works through paypal, but I used it with my Citi 2% cash back card. I also had the urlhasbeenblocked-app open which has a 20% payback. That should be another $184 off my total. And another $18 off with my 2% card. At $921 I will have a 48v battery bank at 280ah. That's insane. Hopefully the other discounts work and I will get it all 4 for $720ish. Sorry for the jibberish... Hope this helps someone.
Mar 16, 2026 09:13 PM
99 Posts
Joined Apr 2017
jeremyhuytranMar 16, 2026 09:13 PM
99 Posts
look like we have to make separate purchase as the coupon only apply to 1 items at a time
Mar 16, 2026 09:24 PM
99 Posts
Joined Apr 2017
jeremyhuytranMar 16, 2026 09:24 PM
99 Posts
Quote from jeremyhuytran :
look like we have to make separate purchase as the coupon only apply to 1 items at a time
wait. It is suck that we can only use the coupon once only. Now i am stuck with 1x 12v battery. I need 4. Is there way to use the couple multiple times?
1
Mar 16, 2026 09:34 PM
39 Posts
Joined Apr 2018
mrfeetoMar 16, 2026 09:34 PM
39 Posts
It even showed the $15 coupon for PayPal under that payment option, but when I went through PayPal it showed up with (and charged the card) the full $200+tax. So either the PayPal deal has already been used up or it doesn't work for everyone. Still a lot cheaper than when I bought this one a few months ago. Thanks!
Mar 17, 2026 12:27 AM
2 Posts
Joined Nov 2017
henghuMar 17, 2026 12:27 AM
2 Posts
Quote from ct witter :
Getting an error of "For security reasons your request can't currently be processed"...anyone else get that before?
Also, is using credit card ok or do they charge an additional fee?
You could disabling AdGuard... Perhaps similar software.

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Mar 17, 2026 01:30 AM
889 Posts
Joined May 2008
CptSavAHoMar 17, 2026 01:30 AM
889 Posts

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

I have 3 of these on a bus to RV conversion that we mostly run in the winter. I was concerned about temps and being able to operate them in cold weather, and so far so good. We went as low as -30 F this winter and when the diesel gelled I was able to use a heat gun run off the batteries to warm the fuel system back up, get additives into the fuel system, and get everything running again.
We had to replace one shortly after receiving it that had a finicky Bluetooth module and didn't like to connect. The replacement was super fast and easy.
I plan to pull our remaining AGM batteries out, they're not worth the weight and space when these work so well.

Edit- I bought mine through their ebay site.
1
Mar 17, 2026 02:00 AM
387 Posts
Joined Sep 2007
ChiphumperMar 17, 2026 02:00 AM
387 Posts
I thought Eco-Worthy does not sell on AliExpress?
Mar 17, 2026 02:29 AM
329 Posts
Joined Jun 2023
JD713Mar 17, 2026 02:29 AM
329 Posts
Quote from Chiphumper :
I thought Eco-Worthy does not sell on AliExpress?
Some people are lying. I and many people bought on AliExpress already. Today is my 2nd purchased on AliExpress. I just received an emailed that my order is shipped.
Mar 17, 2026 02:31 AM
423 Posts
Joined Nov 2018
HairyButtGoblinMar 17, 2026 02:31 AM
423 Posts
I've been running 2 of the older model of these for 3 years almost. The older models i have didn't have BT or low temp but they've been solid. Wired in parallel to a Victron multiplus.
Mar 17, 2026 02:34 AM
423 Posts
Joined Nov 2018
HairyButtGoblinMar 17, 2026 02:34 AM
423 Posts
I love these but they do not have true over current protection, add a fuse!
Cheapest I've ever seen them.
Mar 17, 2026 02:38 AM
288 Posts
Joined Oct 2005
FishPonyMar 17, 2026 02:38 AM
288 Posts
Any idea why the PayPal $15 off won't work?
Mar 17, 2026 03:01 AM
329 Posts
Joined Jun 2023
JD713Mar 17, 2026 03:01 AM
329 Posts
Quote from FishPony :
Any idea why the PayPal $15 off won't work?
If you click in PayPal Promotion under the price tag, it said "PayPal promotion is only work for 6400 REWARDS. First come first serve." So I guess it used up 6400 times. I did used one to purchased the battery this morning 😀.

Look like Eco-Worthy just built warehouse in Houston, TX. Because I just received an email that my order is shipped. I checked the tracking, and it shipped from Houston. I just ordered this morning, and order will arrive tomorrow. 1 day shipping 😁
Last edited by JD713 March 16, 2026 at 08:06 PM.

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Mar 17, 2026 04:12 AM
295 Posts
Joined Jan 2021
TealActivity1814Mar 17, 2026 04:12 AM
295 Posts
Quote from FishPony :
Any idea why the PayPal $15 off won't work?
You can try the Paypal's pay in 4 option to also get 15 off. I made one purchase with the normal 15 off, and on my second purchase it wouldn't apply. But I changed it to the paypal pay in 4 option, and it did 15 off.

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