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expired Posted by Meowssi | Staff • Oct 14, 2024
expired Posted by Meowssi | Staff • Oct 14, 2024

12V 280AH Eco-Worthy LiFePo4 Battery w/ 6000 Cycles

+ Free Shipping

$380

$600

36% off
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eco-worthy-us via eBay has 12-Volt 280AH Eco-Worthy LiFePo4 Lithium Iron Phosphate Battery w/ 6000 Cycles on sale for $474.99 - 20% off when you apply promo code SHOPGIFTSEARLY at checkout = $379.99. Shipping is free.

Thanks to Deal Hunter Meowssi for sharing this deal.

Specs:
  • Battery capacity: 280Ah
  • Battery power: 3584Wh
  • Battery Voltage: 12.8V
  • Max Charge Current: 160A
  • Max Discharge Current: 200A
  • Peak Point Current: 850A
  • Max Charge Voltage: 14.6V
  • Discharge cut-off VoltagE: 10V
  • Battery Size (LxWxH): 17.8 x 9.37 x 8.7"
  • Battery Weight: 61.7 lbs
  • Number of Series and Parallel Connection: 4P4S
Features:
  • LiFePO4 battery is lighter than Lead-Acid battery with the same capacity
  • More convenient carrying, many mount directions, no leakage risk, safer usage
  • Takes 14 hours to charge with 12V 20A LiFePO4 battery charger, about 6 hours to charge with 600w solar panel, and 14 hours to charge with 20A DC generator
  • Has 3584Wh of energy, which can be expanded to 57.3kwh with 4 in series and 4 in parallel, perfect for RV, solar off-Grid system, boat, camper, marine, travel trailer, motor homes, etc
  • Built-in 200A BMS, protect it from overcharge, over-discharge, charge over-current, discharge over-current, short-circuit, cell voltage self balance, high-temp discharge cut off
  • Can be charged and discharged in 6000+ deep cycles, which is 3 times longer than lead-acid battery

Editor's Notes

  • About this Store:
    • eco-worthy-us via eBay has a 98.7% positive feedback with over 79k items sold.
    • 30 days returns. Seller pays for return shipping.
  • Additional Information:
    • Coupon expires October 19, 2024.
    • This offer is priced slightly lower ($4 less) than our front page deal from September 2024 when this LFP battery sold for $383.99 at the time.
    • Rated 4.5 out of 5 stars on Amazon based on over 155 customer reviews.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by Meowssi | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
eco-worthy-us via eBay has 12-Volt 280AH Eco-Worthy LiFePo4 Lithium Iron Phosphate Battery w/ 6000 Cycles on sale for $474.99 - 20% off when you apply promo code SHOPGIFTSEARLY at checkout = $379.99. Shipping is free.

Thanks to Deal Hunter Meowssi for sharing this deal.

Specs:
  • Battery capacity: 280Ah
  • Battery power: 3584Wh
  • Battery Voltage: 12.8V
  • Max Charge Current: 160A
  • Max Discharge Current: 200A
  • Peak Point Current: 850A
  • Max Charge Voltage: 14.6V
  • Discharge cut-off VoltagE: 10V
  • Battery Size (LxWxH): 17.8 x 9.37 x 8.7"
  • Battery Weight: 61.7 lbs
  • Number of Series and Parallel Connection: 4P4S
Features:
  • LiFePO4 battery is lighter than Lead-Acid battery with the same capacity
  • More convenient carrying, many mount directions, no leakage risk, safer usage
  • Takes 14 hours to charge with 12V 20A LiFePO4 battery charger, about 6 hours to charge with 600w solar panel, and 14 hours to charge with 20A DC generator
  • Has 3584Wh of energy, which can be expanded to 57.3kwh with 4 in series and 4 in parallel, perfect for RV, solar off-Grid system, boat, camper, marine, travel trailer, motor homes, etc
  • Built-in 200A BMS, protect it from overcharge, over-discharge, charge over-current, discharge over-current, short-circuit, cell voltage self balance, high-temp discharge cut off
  • Can be charged and discharged in 6000+ deep cycles, which is 3 times longer than lead-acid battery

Editor's Notes

  • About this Store:
    • eco-worthy-us via eBay has a 98.7% positive feedback with over 79k items sold.
    • 30 days returns. Seller pays for return shipping.
  • Additional Information:
    • Coupon expires October 19, 2024.
    • This offer is priced slightly lower ($4 less) than our front page deal from September 2024 when this LFP battery sold for $383.99 at the time.
    • Rated 4.5 out of 5 stars on Amazon based on over 155 customer reviews.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by Meowssi | Staff

Community Voting

Deal Score
+32
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Top Comments

The same battery but with Bluetooth integration is just $10 more and a much better deal that allows monitoring and has low-temperature shut off so it doesn't get charged if near freezing, which damages lithium-based batteries.

https://www.ebay.com/itm/126036129048?

It is $399 (+ tax) with the coupon code.
copper ones. If your not willing to do a little research on it, you probably shouldn't tackle that project. How do you even plan on using it? If you want to charge your Eco flow with it directly. expect a very slow rate. approx. 100 to 120 watts unless you buy another thing that boosts the voltage and I'm not even going to get into it. you better do your research. All I can tell you is it's not as simple as adding an Eco flow branded expansion battery. After you do get it connected, you'll still have to figure out how to charge it separately than your Eco Flow. Your EcoFlow isnt made to chage other 12v volt batteries. Not saying it's not more cost effective... It is more cost effective , but there's some big time trade offs and a lot more too it as well.
I got 4 of these the last sale, it's just over 13kw at 48v in series.
I'm getting 4 more, and doing a full hybrid inverter battery backup.
Ran these off a 1000w inverter for 16hrs during Milton before the inverter took a crap. Paralleled two batteries, ran two full size refrigerators, and it was still over 3/4 capacity per the inverter.
If you don't need the bluetooth BMS (which I don't, really), these are a smokin' deal.
Just trying to find an external BMS that I can use to monitor all 8.......

71 Comments

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Pro
Oct 15, 2024
977 Posts
Joined Apr 2004
Oct 15, 2024
semjase
Pro
Oct 15, 2024
977 Posts
Seems like a great price on storage
Oct 15, 2024
147 Posts
Joined Feb 2014
Oct 15, 2024
psychosaint
Oct 15, 2024
147 Posts
Can anyone recommend cables for this to backup an ecoflow delta 2?
2
Pro
Oct 15, 2024
495 Posts
Joined Jul 2019
Oct 15, 2024
WoodSlayR
Pro
Oct 15, 2024
495 Posts

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

Quote from psychosaint :
Can anyone recommend cables for this to backup an ecoflow delta 2?
copper ones. If your not willing to do a little research on it, you probably shouldn't tackle that project. How do you even plan on using it? If you want to charge your Eco flow with it directly. expect a very slow rate. approx. 100 to 120 watts unless you buy another thing that boosts the voltage and I'm not even going to get into it. you better do your research. All I can tell you is it's not as simple as adding an Eco flow branded expansion battery. After you do get it connected, you'll still have to figure out how to charge it separately than your Eco Flow. Your EcoFlow isnt made to chage other 12v volt batteries. Not saying it's not more cost effective... It is more cost effective , but there's some big time trade offs and a lot more too it as well.
1
6
Oct 15, 2024
845 Posts
Joined Jan 2010
Oct 15, 2024
timp
Oct 15, 2024
845 Posts
We need some solid inverters with app monitoring to go along with these great battery deals
Oct 15, 2024
493 Posts
Joined Nov 2004
Oct 15, 2024
mblitch
Oct 15, 2024
493 Posts
The same battery but with Bluetooth integration is just $10 more and a much better deal that allows monitoring and has low-temperature shut off so it doesn't get charged if near freezing, which damages lithium-based batteries.

https://www.ebay.com/itm/126036129048?

It is $399 (+ tax) with the coupon code.
Last edited by mblitch October 15, 2024 at 06:50 AM.
Oct 15, 2024
101 Posts
Joined Nov 2018
Oct 15, 2024
Hivetyrant
Oct 15, 2024
101 Posts
A year ago we were paying close to $1000 for 300AH 12v units, this is a crazy good price and from what I can tell, all of these smaller brands seem to hold up just fine so you really don't need to pay thousands for the Battleborn stuff. (I've got both power queen and Li Time batteries that I use weekly)
Oct 15, 2024
322 Posts
Joined Aug 2019
Oct 15, 2024
OrangeApparel8487
Oct 15, 2024
322 Posts
I got 4 of these the last sale, it's just over 13kw at 48v in series.
I'm getting 4 more, and doing a full hybrid inverter battery backup.
Ran these off a 1000w inverter for 16hrs during Milton before the inverter took a crap. Paralleled two batteries, ran two full size refrigerators, and it was still over 3/4 capacity per the inverter.
If you don't need the bluetooth BMS (which I don't, really), these are a smokin' deal.
Just trying to find an external BMS that I can use to monitor all 8.......

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Oct 15, 2024
2,132 Posts
Joined Nov 2013
Oct 15, 2024
Danimal86
Oct 15, 2024
2,132 Posts
It's crazy how cheap these batteries have gotten.

I think I paid around 900 for a 300ah li time a few years ago.
Oct 15, 2024
2,561 Posts
Joined Nov 2006
Oct 15, 2024
likeaw
Oct 15, 2024
2,561 Posts
Saw a post for 100ah battery for $86 shipped a few days ago. Must have sold out quickly as was gone when I went to Amazon. Waiting for closer to $1/ah range before I buy.
Oct 15, 2024
14,478 Posts
Joined Jul 2006
Oct 15, 2024
ben_r_
Oct 15, 2024
14,478 Posts
Wow, LiFePO4 battery prices are just plummeting!
Oct 15, 2024
1,781 Posts
Joined Nov 2010
Oct 15, 2024
testshoot
Oct 15, 2024
1,781 Posts
Quote from psychosaint :
Can anyone recommend cables for this to backup an ecoflow delta 2?
You want to get a XT60I connector vs the non-I cable. The I version of the cable "fools" the Delta into thinking it is a solar panel. Will charge up to 500w vs up ton200 watt. I bought mine off of AZ.
Oct 15, 2024
1,781 Posts
Joined Nov 2010
Oct 15, 2024
testshoot
Oct 15, 2024
1,781 Posts
Quote from WoodSlayR :
copper ones. If your not willing to do a little research on it, you probably shouldn't tackle that project. How do you even plan on using it? If you want to charge your Eco flow with it directly. expect a very slow rate. approx. 100 to 120 watts unless you buy another thing that boosts the voltage and I'm not even going to get into it. you better do your research. All I can tell you is it's not as simple as adding an Eco flow branded expansion battery. After you do get it connected, you'll still have to figure out how to charge it separately than your Eco Flow. Your EcoFlow isnt made to chage other 12v volt batteries. Not saying it's not more cost effective... It is more cost effective , but there's some big time trade offs and a lot more too it as well.
Incorrect, see my comment below. Yes, you still have to then charge the external battery separately. you can add a step up buck transformer to double the voltage.
Last edited by testshoot October 15, 2024 at 08:51 AM.
1
Oct 15, 2024
2,232 Posts
Joined Feb 2014
Oct 15, 2024
elefante72
Oct 15, 2024
2,232 Posts
Quote from psychosaint :
Can anyone recommend cables for this to backup an ecoflow delta 2?
Ecoflow uses proprietary battery protocol (for charge) so if you want to use a generic LFP you will need to charge it separately and play some games with an XT/XTi connector. Mine actually came with one. I would just purchase the ecoflow one. Note that at 12V you are going to be limited to input of 15A (I believe), so if you need faster recharge you need to go to higher voltage. If you are JUST looking for 12V an XT connector will suffice. WHATEVER you do please use an inline fuse--you do not want to destroy your Ecoflow. Cheap insurance.

Just looked the Ecoflow XTi connector is 300V, 14 ga, 80c.
Here is an example of an inline: https://www.amazon.com/Bussmann-H...B000LEQVRQ.
(assuming you are looking at one 12V external LFP)


Just be aware you will need to charge the LFP separately from the ecoflow if that is not evident.

Battery to inverter fuse/breaker
The battery-inverter connection handles significant current, especially when the inverter is powering large loads, making it critical to safeguard against short circuits or power surges. A fuse or breaker ensures that in the event of an overcurrent situation, the flow of electricity is cut off, preventing overheating, equipment damage, or even fire hazards.
The size of the fuse or breaker should be carefully selected based on the inverter's power rating and the battery voltage. Typically, the fuse is rated 1.25 to 1.5 times the maximum current draw of the inverter. For instance, if the inverter draws 100 amps, a fuse rated for 125 to 150 amps would be appropriate to handle surges without unnecessary tripping. The fuse or breaker should be installed as close to the battery as possible to minimize the risk of damage to the wiring between the battery and the inverter.​
Last edited by elefante72 October 15, 2024 at 09:09 AM.
Oct 15, 2024
50 Posts
Joined May 2019
Oct 15, 2024
daysdrive
Oct 15, 2024
50 Posts
Quote from OrangeApparel8487 :
I got 4 of these the last sale, it's just over 13kw at 48v in series. I'm getting 4 more, and doing a full hybrid inverter battery backup.Ran these off a 1000w inverter for 16hrs during Milton before the inverter took a crap. Paralleled two batteries, ran two full size refrigerators, and it was still over 3/4 capacity per the inverter.If you don't need the bluetooth BMS (which I don't, really), these are a smokin' deal.Just trying to find an external BMS that I can use to monitor all 8.......
Newbie here. What's the reason for the bluetooth option?

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Oct 15, 2024
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Joined Feb 2014
Oct 15, 2024
elefante72
Oct 15, 2024
2,232 Posts
Quote from daysdrive :
Newbie here. What's the reason for the bluetooth option?
Inside each LFP is a BMS. This allows you to see what charge/discharge/SOC/V/temp/balance levels are. You can look up what a BMS does.
Why? Integrated systems talk to each other and provide that data back to the main charge controller, one off systems do not have this communication protocol so if you want to see what is going on inside the pack, this is the way to monitor.
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