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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
Good Deal
Visit eBay

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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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Oct 17, 2024
268 Posts
Joined Dec 2010
Oct 17, 2024
b67
Oct 17, 2024
268 Posts
Quote from elefante72 :
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.​
What type of fuse /
Breaker would you use for a 48v lithium battery?
Pro
Oct 17, 2024
1,909 Posts
Joined Oct 2014
Oct 17, 2024
MtnXfreeride
Pro
Oct 17, 2024
1,909 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.
Their altenator charger can probably make it simple..
Oct 17, 2024
137 Posts
Joined Nov 2006
Oct 17, 2024
mrshirls
Oct 17, 2024
137 Posts
A general comment, I have been really surprised how hard it has been to replace a simple 7AH PBa battery in a UPS. I tried a few other Lithium LiFePO4's from amazon. I tried a few variations/brands went up to 20AH but did not find a good one. some would top out with peak load with only minimal devices trying to run from the ups and a couple were so low on charge when I received them, that I had concerns about the cells and returned them. Thinking about getting one of their 100AH, even though it is way overkill.
Last edited by mrshirls October 17, 2024 at 04:41 AM.
Oct 17, 2024
137 Posts
Joined Nov 2006
Oct 17, 2024
mrshirls
Oct 17, 2024
137 Posts
Is anyone familiar with the bluetooth on the alternate models suggested in a few posts? I'd like to be able to read it from a linux box, instead of installing an app on my phone from some unknown folks.
Oct 17, 2024
13 Posts
Joined Aug 2023
Oct 17, 2024
FabulousScent6272
Oct 17, 2024
13 Posts
Quote from OrangeApparel8487 :
I don't have a schematic written up but I'll describe it:
4 of these batteries wired in series=48v
2 banks of the batteries (2x4 wired in series). Then the two banks will be wired in parallel- 48v 560ah=26.8kw.
EG4 6000XP hybrid inverter will be used. Powered by a 60a breaker on the main. Feeding a subpanel of critical circuits such as refrigerators, bedrooms for lights and fans, computers, etc. EG4 is cool because it's 120/240v split phase and expandable. So I can add more capacity later on with battery storage and/or solar. Plus generator can plug into it to recharge batteries or add wattage capacity during a grid outage.

The 1100w inverter that took a crap on me was an amazon unit around $110 or so.
60 amp breaker in a standard 200 amp panel is too much extra amperage over the 120% rule of buss bar load. You'd need to derate the main breaker to 175amp breaker or line tap instead of using a 60 amp breaker
Oct 17, 2024
3,229 Posts
Joined Sep 2006
Oct 17, 2024
willygee
Oct 17, 2024
3,229 Posts
Quote from robsnyder22 :
Overkill big time, a very small 10ah battery should be all you need for weekend trips. This would power that fishfinder 24x7 for months on end.
got it - ty! any recommendations (or links) to batteries that wb good for my use case?
Oct 17, 2024
322 Posts
Joined Aug 2019
Oct 17, 2024
OrangeApparel8487
Oct 17, 2024
322 Posts
Quote from FabulousScent6272 :
60 amp breaker in a standard 200 amp panel is too much extra amperage over the 120% rule of buss bar load. You'd need to derate the main breaker to 175amp breaker or line tap instead of using a 60 amp breaker
you'll have to tell the electricians that wired in my pool equipment the 80a breaker they used to supply the subpanel was too much. Inspection approved.
It's not that the inverter is going to draw all 60amps at once. It's that i'm going to be essentially moving 6-7 breakers out of the main to go under that 60.

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Oct 17, 2024
2,234 Posts
Joined Feb 2014
Oct 17, 2024
elefante72
Oct 17, 2024
2,234 Posts
Quote from b67 :
What type of fuse /
Breaker would you use for a 48v lithium battery?
Fuses are rated on temperature, voltage, amperage, and reaction.

A 48V battery is going to take 1/4 the amperage to put the same wattage in as a 12V battery so this is why people start going to 48V systems because the cabling gauge can be much smaller (1/4) (and cheaper).

You normally want to have the fuse 1.25x to 1.3x the peak amperage you expect to run through the (+) cable and have the fuse as close to the positive terminal as possible. Then size the wiring at 1.25x to 1.3x the fuse rating. Also make sure the fuse is rated to say 58V or higher. So if you are looking for say 2000W peak that is approximately 42A so you want a 50-60A fuse and wiring that can handle 75ish A.

Typical solar/RV will use ANL fuses, here is an example:

https://www.renogy.com/20a-30a-40...et-w-fuse/

HTH, please upvote.

The goal of all this is to minimize the chances of a fire, so a few extra bucks up front can provide a much safer system.
Last edited by elefante72 October 17, 2024 at 10:18 AM.
Oct 17, 2024
72 Posts
Joined Nov 2021
Oct 17, 2024
NewDealsAcct
Oct 17, 2024
72 Posts
2 questions: What do I need WITH this battery to charge my cell phone with the battery. Also what do I need to charge this batter? Any help would be greatly appreciated
Oct 17, 2024
1,782 Posts
Joined Nov 2010
Oct 17, 2024
testshoot
Oct 17, 2024
1,782 Posts
Quote from NewDealsAcct :
2 questions: What do I need WITH this battery to charge my cell phone with the battery. Also what do I need to charge this batter? Any help would be greatly appreciated
I would buy the siekonic instead but in either case, you will need a 12 or 24VDC to 5VDC transformer and you can get them already with a USB-C connector. You should only use a charger specific to the lithium technology as the charge cycle is different than gel or SLA.

https://www.amazon.com/PlusRoc-Wa...B09DGDQ48H

https://www.amazon.com/Lead-Acid-...B09ZLD6RJ5

You can get cheaper chargers. This is a 20A model which is the suggested maximum charging rate. If you don't need it to charge fast, you can save money with ones with a lower amperage output and less capability, i.e. all battery types.
Last edited by testshoot October 17, 2024 at 03:27 PM.
Oct 17, 2024
72 Posts
Joined Nov 2021
Oct 17, 2024
NewDealsAcct
Oct 17, 2024
72 Posts
Quote from testshoot :
I would buy the siekonic instead but in either case, you will need a 12V to 5VDC transformer and you can get them already with a USB-C connector. You should only use a charger specific to the lithium technology as the charge cycle is different than gel or SLA.

https://www.amazon.com/PlusRoc-Wa...B09DGDQ48H

https://www.amazon.com/Lead-Acid-...B09ZLD6RJ5

You can get cheaper chargers. This is a 20A model which is the suggested maximum charging rate. If you don't need it to charge fast, you can save money with ones with a lower amperage output and less capability, i.e. all battery types.
Thank you so much. I'm looking at prices for things like the Anker C1000 and feel like if I'm just charging my cell phones, battery banks, flashlights etc that I could get more capacity for way way cheaper (albeit in a less portable setup). Just for around my house or garage it should be fine I imagine.
Oct 17, 2024
1,782 Posts
Joined Nov 2010
Oct 17, 2024
testshoot
Oct 17, 2024
1,782 Posts
Quote from NewDealsAcct :
Thank you so much. I'm looking at prices for things like the Anker C1000 and feel like if I'm just charging my cell phones, battery banks, flashlights etc that I could get more capacity for way way cheaper (albeit in a less portable setup). Just for around my house or garage it should be fine I imagine.
And if paired with an inverter you could have 120V backup
Oct 18, 2024
4 Posts
Joined Dec 2014
Oct 18, 2024
rory.c.oneill
Oct 18, 2024
4 Posts
Just curious. Is everyone using these for RV/camp or home storage?
Oct 18, 2024
1,503 Posts
Joined Feb 2007
Oct 18, 2024
coltrane69
Oct 18, 2024
1,503 Posts
Quote from rory.c.oneill :
Just curious. Is everyone using these for RV/camp or home storage?
I replaced the four 6 Volt house batteries in our Rv with two of these 12v 280ah Eco-Worthy batteries. The 6v batteries were 65lb each, and roughly rated at 150AH. So with my old batteries in my 12volt inverter system I had about 300AH of battery capacity for 260lbs worth of Batteries. With my current setup using two of these 12v 280ah Ecoworthys wired in Parallel, I have almost doubled my battery capacity to 560ah, and with less than half the weight (124lbs). I think I paid around $780 total for a pair of these Ecoworthy batteries, and considering replacement 6v batteries are around $200ea at NAPA currently, cost is basically a wash. I only have one season of use on them so far, so Longevity alone will determine whether or not these end up being a good deal for my application. But so far I'm very happy with the performance of these batteries.
Last edited by coltrane69 October 17, 2024 at 11:23 PM.

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Oct 18, 2024
761 Posts
Joined Apr 2008
Oct 18, 2024
c3688t
Oct 18, 2024
761 Posts
Quote from FabulousScent6272 :
60 amp breaker in a standard 200 amp panel is too much extra amperage over the 120% rule of buss bar load. You'd need to derate the main breaker to 175amp breaker or line tap instead of using a 60 amp breaker
I'm not following you. How is the 60A breaker overloading the 200A panel?

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