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expiredgabe23111 posted Oct 17, 2025 12:35 PM
expiredgabe23111 posted Oct 17, 2025 12:35 PM

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

+ Free Shipping

$222

$1,055

78% off
AliExpress
222 Comments 112,145 Views
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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
+147
Good Deal
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Top Comments

LeakyAneurism
585 Posts
91 Reputation
off grid solar, house batteries for rv, camper, boat. If you've got 12 V devices you can run that directly from the battery without any inverter which is nice.
I have a power station but its internal battery is a 48 V, so when I run 12 V things you lose some efficiency stepping it down to 12 V. I also have a 12 V battery and I'll just often run those device devices directly from the battery and I get much more run time per ah of battery.
fartboobs
56 Posts
10 Reputation
Lol. These were NEVER $1,055. These "sale" prices are ridiculous. Like it's still a good deal. I bought two of these at ~$300 each last year and love them, but please they need to stop saying they're marking it down 75%!
mblitch
518 Posts
109 Reputation
No. These are NOT starter batteries. That isn't how it works.

221 Comments

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Oct 21, 2025 02:16 PM
1,803 Posts
Joined Aug 2011
NateRulesOct 21, 2025 02:16 PM
1,803 Posts
Quote from vayeate :
can i use this to charge my ecoflow power station?

Im thinking of connecting it using alligator clips from 12v batt to xt60 to the back of the power station. not sure if this will work and advisable.
You can also buy a 12v dc to 24v dc converter that will likely double the charging speed for pretty cheap. Less than 20 bucks. I use one to charge smaller charge stations and it makes a huge difference. They make 12v to 48v too, but the 20 dollar ones seem to max out at about 200 watts so that isn't helpful. I see a 60 dollar one that does over 400 watts.
Oct 21, 2025 03:59 PM
658 Posts
Joined Jul 2007
bogeloOct 21, 2025 03:59 PM
658 Posts
Quote from thnworld :
I was planning to buy two and connect them in series and charge them with two 12v solar connected in series as well. I also want to connect to inverter when they charge is finished. What is a recommended charger that I can use to accomplish this?
Usually 200W solar panel has ~21V Voc, and ~10A on the current, 100W will have similar Voc, but with less current. However, you will need to check your panels to be safe. Assuming you are getting 2 of 200W or 100W panels with the spec above in series, you can use Victron 75/10 MPPT solar charge controller (and get the one with Bluetooth). By default, Victron has "charger enabled" turned on, and the voltage is 12V. If you are wiring the batteries in series (24V), do not connect the battery first. You will need to first connect the Victron to the solar panels, and wait for sunlight. Then you can connect to the unit and change the settings. Make sure you change the following settings: set "charger enabled" to off, battery voltage to 24v, & battery presets to Victron lifepo4 (it is not optimal, but this can be adjusted later on). Once this is set, you can safely add 24V batteries to the controller (add 48v DC circuit breakers to prevent spark on battery & solar input). Lastly, once the batteries are connected, go back to the settings and enable the "charger enabled".
If you are not going to add any solar panels any time soon, get the smallest spec for the charge controller that matches your panels. You can always get a bigger capacity charge controller to add more solar panel, but in my experience, you won't get the same /similar spec solar panel when you buy later on, and you will end up losing the maximum capacity of the controller (and waste your money). Each brand & type of solar panel should only be wired to one charge controller, unless the spec are very close (+/- 1% tolerance on the Voc).
1
Pro
Oct 21, 2025 04:42 PM
981 Posts
Joined Mar 2012
txpyro
Pro
Oct 21, 2025 04:42 PM
981 Posts
Quote from kratur :
How did you get 20% CB? I see 10% for new members (and 6% for me).
targeted email, was 24% but dropped to 20%
Oct 21, 2025 09:41 PM
121 Posts
Joined Oct 2010
bobbybeegoodOct 21, 2025 09:41 PM
121 Posts
N 4 1! $ 318 all said & done.
Oct 22, 2025 02:09 AM
29 Posts
Joined Oct 2022
MagnificentBastardsOct 22, 2025 02:09 AM
29 Posts
Quote from Wasser :

Huh? Nope. Extreme temps are challenging for LFP batteries. At least compared to lead acid type batteries.
Huh. Are you sure about that? Everything I read online says LiFeSO4 batteries are more stable down to -40 C compared to lead. On the high temp side, both degrade, but lead more so. Maybe you know something about extreme temps not usually encountered on earth?
Oct 22, 2025 02:58 AM
45 Posts
Joined Nov 2019
SharpSardine6995Oct 22, 2025 02:58 AM
45 Posts
Quote from txpyro :
<br />
<br />
targeted email, was 24% but dropped to 20%

code from the email?
Oct 22, 2025 03:11 AM
598 Posts
Joined Dec 2007
androidOct 22, 2025 03:11 AM
598 Posts
Quote from blupupher :
Yes, but use a XT60i connector. The XT60 limits the amps to 8 amps (car charger level).
With the XT60i, it will let you charge up to 15 amps, which would be 192 watts input (15amps x 12.8v). If you get 2, you can do a 24v setup and do up to 384 watts (depending on which ecoflow unit you have). You will need to buy a charger for the battery though made for LiFePo4 batteries.
I have a 100ah 12v battery with an XT60i connection hooked up to my river 3 plus and it charges at about 175 watts from the battery. I will be getting a 2nd battery soon to do 24v (River 3 Plus maxes out at 220v solar input).
Tons of you tube videos doing this.
Or if this is your main use, just get a 24 volt battery and use that. You will certainly want an xt60i connector though to maximize charging input.

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Oct 22, 2025 03:21 AM
887 Posts
Joined May 2008
CptSavAHoOct 22, 2025 03:21 AM
887 Posts
Quote from TAZ11 :
Can this replace a 12v deep cycle battery on my RV trailer?
Will it charge when I plug in the trailer to ac power?
Do I need to add anything?
Hard to say without seeing your setup.
If your alternator charges your house batteries you'll want to put in a DC to DC charger ~40amp inline with the supply coming from the alternator. This will limit the amount of current draw on your alternator and get the correct voltage for charging the lithium batteries.
As far as supplying your 12v it's plug and play.
Your shore power connect you should have an ac to DC charger just need to adjust the charging voltage for lithium.
Oct 22, 2025 03:25 AM
887 Posts
Joined May 2008
CptSavAHoOct 22, 2025 03:25 AM
887 Posts
Quote from MagnificentBastards :
Huh. Are you sure about that? Everything I read online says LiFeSO4 batteries are more stable down to -40 C compared to lead. On the high temp side, both degrade, but lead more so. Maybe you know something about extreme temps not usually encountered on earth?
AGM lead acide batteries can charge and discharge at extreme cold without damaging the battery but will lose capacity.
Lithium batteries can generally discharge at extreme cold temps without losing capacity, but charging in extreme cold temps will damage the battery chemistry (forms crystals). Most modern lithium have cold temp cutoff for charging.
Oct 22, 2025 04:21 AM
29 Posts
Joined Oct 2022
MagnificentBastardsOct 22, 2025 04:21 AM
29 Posts
Quote from CptSavAHo :
AGM lead acide batteries can charge and discharge at extreme cold without damaging the battery but will lose capacity.
Lithium batteries can generally discharge at extreme cold temps without losing capacity, but charging in extreme cold temps will damage the battery chemistry (forms crystals). Most modern lithium have cold temp cutoff for charging.
Thank you for the explanation. I just checked ecoworthy website. "Low-temperature Protection:Automatically stops charging when cell temperature drops below -7°C (19.4°F) and resumes at 0°C (32°F)." Interesting that it doesn't just cut off at 0 C.
Oct 22, 2025 10:41 AM
87 Posts
Joined Dec 2013
JonT5679Oct 22, 2025 10:41 AM
87 Posts
Does this have the output that can be used for powering a golf cart? In series.
Oct 22, 2025 02:35 PM
49 Posts
Joined Nov 2018
AmusedBreakfast770Oct 22, 2025 02:35 PM
49 Posts
Does it work with backup sump pump?
Oct 22, 2025 05:53 PM
11 Posts
Joined Nov 2012
kman73Oct 22, 2025 05:53 PM
11 Posts
Using two of these batteries in parallel for my camper. They have decent balance out of the box. Be aware they have no overcurrent protection according to Will Prowse. I'm using MRBF fuses on each battery to protect my wires.
1
Oct 22, 2025 09:50 PM
7 Posts
Joined Nov 2018
DealomonOct 22, 2025 09:50 PM
7 Posts
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Oct 23, 2025 12:58 AM
513 Posts
Joined Oct 2011
blupupherOct 23, 2025 12:58 AM
513 Posts
Quote from android :
Or if this is your main use, just get a 24 volt battery and use that. You will certainly want an xt60i connector though to maximize charging input.
True, but many times the cost of two 12v can be a lot cheaper than a single 24v of same capacity. You do need more space for the two batteries though, and have to wire them together.

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