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frontpageDr.W posted Jan 16, 2026 05:23 PM
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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
27 Comments 5,722 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

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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.

27 Comments

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Jan 16, 2026 05:35 PM
728 Posts
Joined Feb 2011
jenesuispasbavaJan 16, 2026 05:35 PM
728 Posts

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

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.
Last edited by jenesuispasbava January 16, 2026 at 11:57 AM.
3
Jan 16, 2026 05:53 PM
705 Posts
Joined Nov 2016
alan11Jan 16, 2026 05:53 PM
705 Posts
Quote from jenesuispasbava :
I've been using one of these as a DIY expansion battery 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.
your car EV or gas?
2
Jan 16, 2026 05:55 PM
202 Posts
Joined Mar 2014
BlurryEyedJan 16, 2026 05:55 PM
202 Posts
Very happy with my 150 mah 12V metal case from Eco Worthy. They're good batteries.
1
Jan 16, 2026 06:05 PM
1,563 Posts
Joined Jan 2007
hitman007Jan 16, 2026 06:05 PM
1,563 Posts
Any good deal on 48v batteries . Ecoflow can be modded to support bi directional charging/discharging on those as voltage etc is same as internal.
Jan 16, 2026 06:15 PM
728 Posts
Joined Feb 2011
jenesuispasbavaJan 16, 2026 06:15 PM
728 Posts

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

Quote from alan11 :
your car EV or gas?
Unfortunately I don't have a gasoline refinery in my backyard, but I do have solar panels and a battery (both cars are EVs).
1
1
Jan 16, 2026 06:25 PM
705 Posts
Joined Nov 2016
alan11Jan 16, 2026 06:25 PM
705 Posts
Quote from jenesuispasbava :
Unfortunately I don't have a gasoline refinery in my backyard, but I do have solar panels and a battery (both cars are EVs).
thx
Jan 16, 2026 06:59 PM
974 Posts
Joined Jun 2009
greenshellJan 16, 2026 06:59 PM
974 Posts
Thanks, bought another one other than the one from couple days ago.

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Jan 16, 2026 07:13 PM
493 Posts
Joined Sep 2007
mannyvJan 16, 2026 07:13 PM
493 Posts
Picked up 2. I'm slowly building a solar system, and the price per kwh is just too good.
Jan 16, 2026 07:51 PM
245 Posts
Joined Jul 2013
MannyforeverJan 16, 2026 07:51 PM
245 Posts
Got them around Christmas when they were $220-230. I first purchase 2 that work with third party Bluetooth apps, then purchase 2 more and they don't work with third-party apps like Overkill. 3 of them balance fine but 1 of them not so great. Low cell is 3.41, high is 3.52. According to the manual, eco-worthy says it's normal delta variance.
Last edited by Mannyforever January 16, 2026 at 12:55 PM.
Jan 16, 2026 07:58 PM
670 Posts
Joined Sep 2007
LomicJan 16, 2026 07:58 PM
670 Posts

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

Quote from Mannyforever :
Got them around Christmas when they were $220-230. I first purchase 2 that work with third party Bluetooth apps, then purchase 2 more and they don't work with third-party apps like Overkill. 3 of them balance fine but 1 of them not so great. Low cell is 3.41, high is 3.52. According to the manual, eco-worthy says it's normal delta variance.
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.
2
Jan 16, 2026 08:09 PM
1 Posts
Joined Jan 2026
ScarletMarmot121Jan 16, 2026 08:09 PM
1 Posts
I need to replace my sump pump backup system battery. Is this battery suitable for that application? I usually have 1-2 power outages a year so battery won't see a lot of discharge cycles.
Jan 16, 2026 08:39 PM
98 Posts
Joined Apr 2012
eazye79Jan 16, 2026 08:39 PM
98 Posts
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
Jan 16, 2026 08:54 PM
310 Posts
Joined Dec 2014
vsluongJan 16, 2026 08:54 PM
310 Posts
Quote from hitman007 :
Any good deal on 48v batteries . Ecoflow can be modded to support bi directional charging/discharging on those as voltage etc is same as internal.
I saw a 48v 100ah golf cart battery on here
Jan 16, 2026 11:16 PM
268 Posts
Joined Mar 2023
PantherCat1Jan 16, 2026 11:16 PM
268 Posts
If you buy 4 you can turn this into 48 volt right?

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Jan 16, 2026 11:57 PM
723 Posts
Joined Jan 2007
EsenteJan 16, 2026 11:57 PM
723 Posts
Quote from PantherCat1 :
If you buy 4 you can turn this into 48 volt right?
Yes, by putting them in series.

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