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frontpageDr.W posted Jan 16, 2026 05:23 PM
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Item 1 of 3
frontpageDr.W posted Jan 16, 2026 05:23 PM

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

+ Free Shipping

$240

$1,122

78% off
AliExpress
34 Comments 7,286 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 $269.99 - $30 with promo code ABC30A​ at checkout = $239.99. 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 Nate650 | Staff
  • About this deal:
  • About this product:
    • Rated 4.8 out of 5 stars based on over 85 AliExpress customer reviews.
  • About this store:
  • 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 $269.99 - $30 with promo code ABC30A​ at checkout = $239.99. 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 Nate650 | Staff
  • About this deal:
  • About this product:
    • Rated 4.8 out of 5 stars based on over 85 AliExpress customer reviews.
  • About this store:
  • 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
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Top Comments

jenesuispasbava
728 Posts
81 Reputation
I've been using one of these as a DIY expansion battery (planning to buy a second to put in parallel) with my Ecoflow Delta Pro 3 for a couple months now, spectacular price/kWh compared to the official expansion battery. Needs more equipment than just the battery, but the extra stuff has more uses too. I've got the Ecoflow 800W alternator charger between the Delta Pro 3 and Ecoworthy 12V battery, and it does bidirectional charging (there's a "charge" and "reverse charge" setting).

The Delta Pro 3 charges from 400W solar panels, and if it's getting full I just "reverse charge" the 12V battery via the alternator charger. When they're both nearly full I'll charge my car from the Delta Pro 3, while the alternator charger is in "charge" mode discharging the 12V battery and charging the Delta Pro 3.

Mainly bought the setup for use during power outages, but when there's no outage it covers my commute every week lol.
Lomic
670 Posts
179 Reputation
One of the two of these I purchased lost BT "permanently" when I moved out of BT range while using the official app, and neither the official app nor any other could connect again. I was able to fix this by draining the battery all the way, letting it sit for a couple days, then starting to re-charge it with the Ecoworthy smart charger. After a few minutes of charging the BMS reset and I was able to connect to my Raspberry Pi/Home Assistant where the connections have been solid since.

Not necessarily your issue, but in case it might be.
jenesuispasbava
728 Posts
81 Reputation
Unfortunately I don't have a gasoline refinery in my backyard, but I do have solar panels and a battery (both cars are EVs).

34 Comments

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Yesterday 12:06 AM
2,201 Posts
Joined Sep 2005
spamYesterday 12:06 AM
2,201 Posts
Can this or any other such battery be used to power my home during the highest electricity rate period (4-9pm)?

TIA
Yesterday 02:14 AM
268 Posts
Joined Mar 2023
PantherCat1Yesterday 02:14 AM
268 Posts
Quote from spam :
Can this or any other such battery be used to power my home during the highest electricity rate period (4-9pm)?

TIA

Since they can be put into a series of 4 to make 48 volts then yes they sure can power anything in a home from 4-9 pm. It will most definitely need a number of other parts, wiring, and knowhow to set it all up though.
Yesterday 03:31 AM
105 Posts
Joined Nov 2010
diablokicksYesterday 03:31 AM
105 Posts
Quote from eazye79 :
In for one, again. The first one I got has been great in my RV. Gonna add another one because I have a residential fridge and boondock a lot. It charged me tax in California, so total was $267
That's what I've been eyeing these for. How have you liked them? Do you use an inverter with them?
Yesterday 04:02 AM
98 Posts
Joined Apr 2012
eazye79Yesterday 04:02 AM
98 Posts
Quote from diablokicks :
That's what I've been eyeing these for. How have you liked them? Do you use an inverter with them?
Been great so far. I had to get a new converter to charge them to the right voltage. My RV came with a factory inverter connected to the fridge and TV outlets. I also had to add a lithium battery isolation manager because my alternator also charges the house batteries. Apparently lithium batteries pull more power and can overheat the alternator.
Yesterday 06:26 AM
228 Posts
Joined Jan 2015
HiroxYesterday 06:26 AM
228 Posts
I've accumulated 7 of these over the last couple of years, picking more up each time the price drops. 4 to power my off the grid cabin and 3 power some key electronics and fridge at home. These batteries are awesome. Bluetooth built into the battery to check charge level is a great feature.
Yesterday 06:48 AM
201 Posts
Joined Jun 2006
plasticquartYesterday 06:48 AM
201 Posts
Dead.
Yesterday 07:40 AM
699 Posts
Joined Dec 2011
mehoff88Yesterday 07:40 AM
699 Posts
Quote from spam :
Can this or any other such battery be used to power my home during the highest electricity rate period (4-9pm)?

TIA
loll wtf
[IMG]https://media4.giphy.com/media/v1.Y2lkPTI5MDMyOTZhOTVlOTAyNmhjbG45eDFzZ3c4YXdndTB4OWJwYWdra2k0eWdlajAwNCZlcD12MV9naWZzX3NlYXJjaCZjdD1n/h20lgQ1eksr1SEdc47/giphy.gif[/IMG]
1

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Yesterday 07:43 AM
699 Posts
Joined Dec 2011
mehoff88Yesterday 07:43 AM
699 Posts
Quote from plasticquart :
Dead.
umm no it's not. just bought one.
Yesterday 10:20 PM
214 Posts
Joined Jun 2004
sammyk77Yesterday 10:20 PM
214 Posts
Just FYI, these are not returnable, even though it says they are. Ali will send you a ground return label for USPS, and you need a hazardous label for these. They don't understand that.
1
Yesterday 10:23 PM
6 Posts
Joined Mar 2017
jwtjwt201683595930Yesterday 10:23 PM
6 Posts
Is this for gas car engine battery? I concern about the safety of the battery
Yesterday 10:49 PM
36 Posts
Joined Dec 2009
PhilabongYesterday 10:49 PM
36 Posts
Quote from jwtjwt201683595930 :
Is this for gas car engine battery? I concern about the safety of the battery
1000% no.
Yesterday 11:06 PM
286 Posts
Joined Mar 2020
SkillfulShoe989Yesterday 11:06 PM
286 Posts
Quote from jwtjwt201683595930 :
Is this for gas car engine battery? I concern about the safety of the battery
Not a car (starter) battery.
Today 12:54 AM
76 Posts
Joined Nov 2022
CoolRoute8143Today 12:54 AM
76 Posts
add about $36 extra on tariff fees. Total out the door price.
1
Today 02:14 AM
400 Posts
Joined Nov 2019
LiquidIQToday 02:14 AM
400 Posts
So 4 of these roughly equate to the output of a Tesla Powerwall? I understand the PW has some electronics built in, but that seems impossibly cheap in comparison ($1200 vs $15k)

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Today 02:15 AM
25 Posts
Joined Mar 2021
CoolRoute8532Today 02:15 AM
25 Posts
Quote from CoolRoute8143 :
add about $36 extra on tariff fees. Total out the door price.
Do you mean state sales tax? LOL

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