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expired Posted by Skillful_Pickle | Staff • May 6, 2025
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expired Posted by Skillful_Pickle | Staff • May 6, 2025

2-Pack ECO-WORTHY 12V 280Ah LiFePO4 Low Temp Lithium Battery w/ Bluetooth

+ Free Shipping

$730

$1,000

27% off
Amazon
34 Comments 21,801 Views
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Deal Details
ECO-WORTHY US via Amazon has 2-Pack ECO-WORTHY 12V 280Ah LiFePO4 Low Temp Protection Lithium Battery w/ Bluetooth for $999.99 - $270 Off w/ promo code 27HF4TY4 (apply at checkout) = $729.99. Shipping is free.

Note, must apply the listed promo code for discount to apply at final checkout. Product will be sold/shipped by ECO-WORTHY US.

Thanks to SD Staff Member Skillful_Pickle for finding this deal

About this Product:
  • 12V Lithium Battery/200A BMS
  • 280Ah Smart LiFePO4 Lithium Battery
  • 3584Wh Energy (12.8V x 280Ah)
  • Low Temperature Protection
  • Lithium Phosphate Battery Composition
  • Monitor In Real Time/Connect Bluetooth 5.0
  • Rated 4.4 stars overall based on 173 reviews.

Editor's Notes

Written by Corwin | Staff
  • About this Deal
    • Must apply the listed promo code for discount to apply.
    • Ideal choice for trolling motors, RVs, solar off-grid systems, backup power, campers, marine vessels, travel trailers and more
    • Product is non-returnable.
    • Transportation of this item is subject to hazardous materials regulation.
    • Offer valid while promo savings/supplies last.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion. 
  • About this Store:

Original Post

Written by Skillful_Pickle | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
ECO-WORTHY US via Amazon has 2-Pack ECO-WORTHY 12V 280Ah LiFePO4 Low Temp Protection Lithium Battery w/ Bluetooth for $999.99 - $270 Off w/ promo code 27HF4TY4 (apply at checkout) = $729.99. Shipping is free.

Note, must apply the listed promo code for discount to apply at final checkout. Product will be sold/shipped by ECO-WORTHY US.

Thanks to SD Staff Member Skillful_Pickle for finding this deal

About this Product:
  • 12V Lithium Battery/200A BMS
  • 280Ah Smart LiFePO4 Lithium Battery
  • 3584Wh Energy (12.8V x 280Ah)
  • Low Temperature Protection
  • Lithium Phosphate Battery Composition
  • Monitor In Real Time/Connect Bluetooth 5.0
  • Rated 4.4 stars overall based on 173 reviews.

Editor's Notes

Written by Corwin | Staff
  • About this Deal
    • Must apply the listed promo code for discount to apply.
    • Ideal choice for trolling motors, RVs, solar off-grid systems, backup power, campers, marine vessels, travel trailers and more
    • Product is non-returnable.
    • Transportation of this item is subject to hazardous materials regulation.
    • Offer valid while promo savings/supplies last.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion. 
  • About this Store:

Original Post

Written by Skillful_Pickle | Staff

Community Voting

Deal Score
+21
Good Deal
Visit Amazon

Price Intelligence

Model: ECO-WORTHY 12V 280Ah 2 Pack LiFePO4 Lithium Battery with Bluetooth, Low-Temp Protection, 6000+ Deep Cycles, 7168Wh Energy, Support in Series/Parallel, for RV, Off-Grid, Solar Power System,UPS, Marine

Deal History 

Sort: Most Recent
Post Date Sold By Sale Price Activity
07/08/25Amazon$700
5

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33 Comments

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May 9, 2025
2,736 Posts
Joined Jun 2012
May 9, 2025
lennonst
May 9, 2025
2,736 Posts
Quote from wildbird12 :
Wow - $365/battery under $0.1/kWh

Edit: oops - as others pointed out, I calculated cost per Wh, so x1000 per kWh makes this around $100/kWh . The point is that this is a terrific deal for a quality battery of this size.
8 batteries is about 25kWH, and price on amazon after coupon and tax is $3000-3200 depending on tax rate (5-10%).
May 11, 2025
564 Posts
Joined Jan 2016
May 11, 2025
wildbird12
May 11, 2025
564 Posts
Quote from lennonst :
8 batteries is about 25kWH, and price on amazon after coupon and tax is $3000-3200 depending on tax rate (5-10%).
To be more precise: 4x$730 [=$2920]/8x3.564kWh [=28.67kWh] = $101.85/kWh (btw no tax in Oregon and other states but possibly 30% tax credit)...
May 12, 2025
9 Posts
Joined Feb 2025
May 12, 2025
SociableMeat383
May 12, 2025
9 Posts
Wait…. Why so expensive??
May 12, 2025
406 Posts
Joined Jan 2015
May 12, 2025
mixafix
May 12, 2025
406 Posts
Will 1 of these start my 94 suburban 6.2 diesel?
May 12, 2025
1,341 Posts
Joined Dec 2005
May 12, 2025
alphawave
May 12, 2025
1,341 Posts
Quote from SociableMeat383 :
Wait…. Why so expensive??
Compared to? This is almost as cheap as building your own. This likely has Rept or Hithium 280AH, a 200A BMS, 2GA wire to terminals.

https://www.docanpower.com/usa-st...ery?page=2
May 12, 2025
1,357 Posts
Joined Apr 2008
May 12, 2025
bigjonnee
May 12, 2025
1,357 Posts
Nice I paid ~$800 for the pair a year ago on previous eBay sale without Bluetooth. Running my off-grid 3000W hybrid inverter. 7.2 Kilowatt hours is plenty to blast a window A/C 24/7. Good deal
May 12, 2025
1,357 Posts
Joined Apr 2008
May 12, 2025
bigjonnee
May 12, 2025
1,357 Posts
Quote from alphawave :
Compared to? This is almost as cheap as building your own. This likely has Rept or Hithium 280AH, a 200A BMS, 2GA wire to terminals.

https://www.docanpower.com/usa-st...ery?page=2
Your math breaks down when you price a nice waterproof enclosure with screw terminals! Not worth it unless you need something custom you can't buy.

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May 12, 2025
1,341 Posts
Joined Dec 2005
May 12, 2025
alphawave
May 12, 2025
1,341 Posts
Quote from bigjonnee :
Your math breaks down when you price a nice waterproof enclosure with screw terminals! Not worth it unless you need something custom you can't buy.
Precisely...when these go on sale with a stackable discount, it's hard to beat even DIY. As cell supply dries up, I can see some even scavenging from these new complete units to fashion a particular custom config.
Pro
May 12, 2025
351 Posts
Joined Jan 2009
May 12, 2025
hoozswup
Pro
May 12, 2025
351 Posts
What are the main differences between this and the server rack version that generates 5kW whereas this one can generate 7kW for roughly the same amount of money?
May 12, 2025
179 Posts
Joined Aug 2006
May 12, 2025
korg
May 12, 2025
179 Posts
Quote from hoozswup :
What are the main differences between this and the server rack version that generates 5kW whereas this one can generate 7kW for roughly the same amount of money?
The batteries in this post are 12v and have a plastic case. The server rack version has a metal case and is 48v which needs thinner and thus cheaper cables to deliver the same watts (look up ampacity charts). The 48v also has RS485 communication which allows it to talk to the inverter so that the inverter has more accurate information about the battery charge state and configuration instead of basing it on the voltage alone.
1
May 12, 2025
33 Posts
Joined Nov 2010
May 12, 2025
cobatts
May 12, 2025
33 Posts
before I went to bed last night it showed $780 after tax and I decided against it. checked again this morning and final price was right at $700. figured I wouldn't see this good a deal for a long time so I jumped on it.
I assume I want to wire these in series to get to 24V. what's a good solar charge controller and inverter to pick up? I'm hoping to power an always running dehumidifier in the basement and a small window AC unit in my bedroom.
May 12, 2025
1,976 Posts
Joined Jan 2008
May 12, 2025
NeoSlick
May 12, 2025
1,976 Posts
Quote from MyBallsItch :
Last month tariffs were 145% lower than they are now and the US dollar was worth more. This may be the last chance to get decent prices on a lot of things.
Or not. Right? Just temporary. Would you pay, for example double (it's not even that bad) for one month, so you can pay less for a decade or more? Or would you rather never see a crunch, nor a price hike and always pay extra ongoing and out of control? The point of a possible price hike blip is well taken; I'm just saying the macro purpose is not to raise your prices, it's lowing them. So raising the value of your hard earned dollar, on going. And history is on our side, in these matters. Big picture. Your work labor is what drives the perceived value of currency. And what you are willing to trade for your paycheck. It's really not how many dollars should something cost, at least first. It's how much labor should it cost. BTW this is why a JOB, living paycheck to paycheck, without any investments falls behind. As does over spending. Read everything in a free and recommended financial investment site, for more details. Except for their advice about paying their fees. Pay no fees.
1
May 12, 2025
740 Posts
Joined Apr 2004
May 12, 2025
Greg231
May 12, 2025
740 Posts
Quote from MyBallsItch :
Last month tariffs were 145% lower than they are now and the US dollar was worth more.This may be the last chance to get decent prices on a lot of things.
China tariffs were just lowered to 30%, from 145%. It might be better to wait, unless you are in dire need.
1
1
May 13, 2025
308 Posts
Joined Nov 2018
May 13, 2025
HairyButtGoblin
May 13, 2025
308 Posts
Quote from NavyMint1272 :
I have 4 of the non Bluetooth version of this battery, I'm so tempted to grab 2 more to increase my storage to 21kWh.

I imagine the new tariffs are going to start effecting the price of these pretty soon?
I have 4 of the non Bluetooth also. Have them installed but haven't even had a full cycle yet. How are yours so far ?
Thanks

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May 13, 2025
272 Posts
Joined Jun 2013
May 13, 2025
CaptainElwood
May 13, 2025
272 Posts
Quote from cobatts :
before I went to bed last night it showed $780 after tax and I decided against it. checked again this morning and final price was right at $700. figured I wouldn't see this good a deal for a long time so I jumped on it.
I assume I want to wire these in series to get to 24V. what's a good solar charge controller and inverter to pick up? I'm hoping to power an always running dehumidifier in the basement and a small window AC unit in my bedroom.
Go victron for the shunt and mppt. It's really nice to have them communicate wirelessly and those two items aren't extremely expensive compared to the competition. For inverter, not sure. I blew up a 4k watt 24v no named unit so I upgraded to a 4k watt 24v sungold power which was then knocked out in a lightning strike (pull your RV jacks up in storms)... Currently I'm leaning towards buying no name again just because I could go through a couple before getting to the cost of the sungold and my last one made it a few years. What may make your situation tricky is that window unit, inverter units ramp up but the older models don't and have quite a bit of inrush that can overwhelm these smaller inverters. You'll probably want an inverter unit anyway just for the efficiency gains if you plan to run off solar.

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