Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.

Black Friday is days away. Pick your offers now.Black Friday is days away. Pick your offers now.

Start Sifting
Missed This Deal? Get alerts when similar deals are posted.
expired
gabe23111 123K Views
Oct 17, 2025 12:35 PM

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

$222

$1,055

78% off
+ Free Shippingat AliExpress
Visit AliExpress
Good Deal?
221Comments
Save
Share
Deal Details
Update: This Frontpage Deal is still available with a new promo code and a ~$9 price drop.

ECOWORTHY-US Store via AliExpress has ECO-WORTHY 3584Wh 12V 280Ah Smart LiFePO4 Battery w/ Bluetooth on sale for $287.37 - $56 with promo code USDEAL44 at checkout = $292.69 -> $231.37 -> now $221.69 . Shipping is free.

Thanks to Community Member gabe23111 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.
About this Item:
  • 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 Neo45 | Staff
  • This price is ~$98 Lower than our recent Frontpage Deal.
  • Rated 5 out of 5 stars from customer reviews.
  • For expedited customer service, please email [email protected]
Expired:
  • USDEAL064 or RDC64C, AEUS56, RDT56C

Original Post

Written by gabe23111
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This Frontpage Deal is still available with a new promo code and a ~$9 price drop.

ECOWORTHY-US Store via AliExpress has ECO-WORTHY 3584Wh 12V 280Ah Smart LiFePO4 Battery w/ Bluetooth on sale for $287.37 - $56 with promo code USDEAL44 at checkout = $292.69 -> $231.37 -> now $221.69 . Shipping is free.

Thanks to Community Member gabe23111 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.
About this Item:
  • 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 Neo45 | Staff
  • This price is ~$98 Lower than our recent Frontpage Deal.
  • Rated 5 out of 5 stars from customer reviews.
  • For expedited customer service, please email [email protected]
Expired:
  • USDEAL064 or RDC64C, AEUS56, RDT56C

Original Post

Written by gabe23111

Community Voting

Deal Score
+148
Good Deal
Bad Deal

Top Comments

Community Reviews

This 12V 280Ah LiFePO4 battery is being used as affordable house, RV, boat, camper, and off-grid storage, with Bluetooth monitoring and enough capacity for serious loads. It is praised for running 12V devices directly, pairing well with solar, and scaling into 24V or 48V banks for larger systems. Real-world reports include trolling motors, backup power, and even air conditioning, though runtime drops fast on heavy AC loads. It is not a starter battery, and charging or wiring often needs the right lithium charger, fuses, and connectors.

Common Questions (7)

  • Yes. It is being used in RVs, campers, boats, trailers, and for trolling motors, and it is well suited to 12V loads because you can run devices directly without an inverter. It is also commonly paired with solar for off-grid storage.

  • You need a solar charge controller to charge it from panels, and lithium-compatible charging settings are important. For faster charging into EcoFlow units, an XT60i cable can allow up to about 15A input, while a standard XT60 is often limited to about 8A.

  • Yes. Four of these can be wired in series for a 48V bank, and users also report 25.6V series-parallel and 36V golf-cart setups. A lithium charger and proper fusing or disconnects are recommended for those builds.

  • No. It is a power-storage battery, not a starter battery, and the 200A BMS is not meant to supply the several hundred amps vehicles need for cranking. It can fit some vehicle-sized spaces, but it will not replace a car battery for starting.

  • It may, because 12.8V × 280Ah equals 3.584kWh, which is above the 3kWh threshold mentioned for the credit. The battery would need to be installed and used for home power, and the credit discussion was tied to a Dec. 31 deadline.

  • Runtime depends heavily on the AC load and whether it is maintaining temperature or cooling hard. A standard 13,500 BTU unit running constantly was estimated at under 3 hours, while a lighter 5A/120V load works out to about 5 hours after inverter losses.

  • Yes, it has Bluetooth, and the listed low-temperature protection stops charging below -7°C and resumes at 0°C. One unit was also reported to work with the DBJBD BMS and the Overkill Solar app.

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

221 Comments

Sign up for a Slickdeals account to remove this ad.

Nov 11, 2025 3:42 PM
702 Comments
Joined May 2008
wiebel03Nov 11, 2025 3:42 PM
702 Comments
Quote from MaroonPocket778 View quoted comment :
Once bms stops accepting charge amps from alternator, alternator overheats and gets fried because it cant discharge....
Huh? That doesn't make any sense. The alternator is still hooked up to the car battery, it's not there solely for the lifepo4 battery. It is possible it'd fry the alternator if you just run it in idle for a long time to charge lifepo4 because alternators are generally air-cooled by the wind generated from the car moving though.

It is technically possible to fry your alternator if you use too high of an amperage for charging too, but I dont think there's any chargers that allow that high of amperage, so no worries there unless you create your own charger and have some really heavy gauge wires that could handle the amps so the alternator would fry before the wires burn up
Nov 11, 2025 3:46 PM
173 Comments
Joined Jan 2024
LavenderMustang7811Nov 11, 2025 3:46 PM
173 Comments
won't let me buy more than 1. would need 4 to add a layer to my off grid system. bummer. anybody know why?
Nov 11, 2025 3:55 PM
702 Comments
Joined May 2008
wiebel03Nov 11, 2025 3:55 PM
702 Comments
Just received mine from my order placed last week. Happy to discover they use DBJBD bms, so the overkill solar app works for bms management.

Does anyone know how to disassemble so I can do top-balancing myself? It looks like it is maybe glued shut?
Nov 11, 2025 4:03 PM
179 Comments
Joined Feb 2019
WhitedliteNov 11, 2025 4:03 PM
179 Comments
Working on building my small setup now, Got this battery for $222. Working on getting a Victron Orion XS, undecided on what charger to get for shore power, and inverter. I like the idea of all separate versus the multi-plus especially if price is about the same. Figure this is better than these $1,000 AIO systems I see on here. Going in a van for small things, fridge, microwave, charging e-bikes, etc...
Nov 11, 2025 4:39 PM
231 Comments
Joined Mar 2016
lambchops_for_dinnerNov 11, 2025 4:39 PM
231 Comments
Under the coupons highlighted in red on the product page I had a $50 off coupon and also got a $25 instant discount on top of that for using Paypal making it $195.85 before taxes
1
Nov 11, 2025 4:43 PM
281 Comments
Joined Jun 2011
desertst0neNov 11, 2025 4:43 PM
281 Comments
US5011 50$ off for this battery.
Nov 11, 2025 6:14 PM
702 Comments
Joined May 2008
wiebel03Nov 11, 2025 6:14 PM
702 Comments
Quote from Whitedlite View quoted comment :
Working on building my small setup now, Got this battery for $222. Working on getting a Victron Orion XS, undecided on what charger to get for shore power, and inverter. I like the idea of all separate versus the multi-plus especially if price is about the same. Figure this is better than these $1,000 AIO systems I see on here. Going in a van for small things, fridge, microwave, charging e-bikes, etc...
If you're doing a microwave you'll need a 2000W inverter most likely as that's definitely not a "small thing". Everything else could get by no problem on 1000w or even less.

Definitely do separate rather than all-in-one type of things. It's usually cheaper, and if 1 part goes out then you can easily replace just the one thing instead of everything. I have a noco charger which is fine, but I bought it when there wasn't cheap availability of other brands like there is nowadays. I'd just get a cheap eco-worthy (or similar) 10-20A charger for charging from shore power. The DC-DC usually takes care of everything unless you're staying put for 3-5+ days. Mine lasts me almost a week with the same things you listed minus a microwave, but does include an instant pot used once a day and a drip coffee pot also used once a day

Sign up for a Slickdeals account to remove this ad.

Nov 11, 2025 6:24 PM
86 Comments
Joined Apr 2016
mtfreakNov 11, 2025 6:24 PM
86 Comments
I've been trying for a 30 minutes to order. Gpay fails and if I use my CC the promo code gets stripped off for "security reasons".
Nov 11, 2025 6:35 PM
118 Comments
Joined Oct 2008
ItsABingoNov 11, 2025 6:35 PM
118 Comments
Quote from AURSVAN View quoted comment :
Can this be used as maintenance-free battery for WatchDog backup sump pump.
Almost certainly yes in terms of the watchdog backup voltage requirements.
Assuming it's a backup pump, the LFP benefit of more cycles isn't a huge benefit, it's more about calendar lifespan. Also, LFP don't like to stay charged at 100%, like you would want for the case for a backup sump.
How much storing at 100% degrades the battery capacity is still up for debate. It likely changes over the life time of the battery. There is one research paper about it but it's pretty technical and not conclusive. OTOH, the manufacturer recommend battery is what 75-100ah? Even if the capacity of this one degraded significantly, it still might provide more capacity, assuming it could still deliver the proper voltage to power the pump.
TLDR; LFP may or may not be better for a backup sump. Nobody knows.
I went with a deep cycle battery because it's a known and extremely important that mine works but may try an LFP next time.
Nov 11, 2025 10:29 PM
277 Comments
Joined Dec 2004
digablesoulNov 11, 2025 10:29 PM
277 Comments
Quote from lambchops_for_dinner View quoted comment :
Under the coupons highlighted in red on the product page I had a $50 off coupon and also got a $25 instant discount on top of that for using Paypal making it $195.85 before taxes
Whoa.. thanks for pointing out on using paypal! I got a total of $75 off too.
Pro
Nov 11, 2025 10:45 PM
483 Comments
Joined Jun 2023
JD713
Pro
Nov 11, 2025 10:45 PM
483 Comments
Never mind, I use different email and get thru. Finally, bought 1. DON'T USE THE CODE IN THIS POST. It only give you $44 discount. USE CODE "US5011" give you $50 and PAYPAL $25 DISCOUNT EXTRA.
Nov 11, 2025 11:23 PM
850 Comments
Joined Dec 2007
trpt4himNov 11, 2025 11:23 PM
850 Comments
Quote from ivyleaguerenovations View quoted comment :
No, it will destroy your alternator.
Probably not before the cold destroys the battery.
Nov 12, 2025 4:19 AM
3.4K Comments
Joined Dec 2009
RyanMPLSNov 12, 2025 4:19 AM
3.4K Comments
Quote from wildta View quoted comment :
For EV, this would work then?
For EV hopefully you have a MUCH larger battery already.
Nov 12, 2025 7:30 AM
32 Comments
Joined Aug 2006
jonny_dNov 12, 2025 7:30 AM
32 Comments
Quote from lambchops_for_dinner View quoted comment :
Under the coupons highlighted in red on the product page I had a $50 off coupon and also got a $25 instant discount on top of that for using Paypal making it $195.85 before taxes
Did you have to do anything beyond selecting Paypal as the payment option for the $25 off? Not able to get it in my cart.

Sign up for a Slickdeals account to remove this ad.

Nov 12, 2025 2:16 PM
121 Comments
Joined Sep 2009
Grogan14Nov 12, 2025 2:16 PM
121 Comments
Quote from 748289293 View quoted comment :
Great deal except you have to deal with Aliexpress that wont refund your money when the items dont show up. If you buy anything from this scammy company make sure you have some sort of buyer protection.
Only stuff I've ever bought on there is from Eco-Worthy, and never an issue whatsoever. Can't speak to any other vendor on there.

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!