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frontpageSkillful_Pickle | Staff posted Sep 08, 2025 05:53 PM
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Item 1 of 2
frontpageSkillful_Pickle | Staff posted Sep 08, 2025 05:53 PM

2-Pack ECO-WORTHY 14kWh 51.2V 280AH LiFePO4 Battery Backup + Busbar

+ Free Shipping

$3,850

$4,200

8% off
eBay
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Deal Details
eco-worthy-us via eBay has 2-Pack ECO-WORTHY 14kWh 51.2V 280AH LiFePO4 Solar Battery Backup w/ 200A BMS + Busbar (Version2) on sale for $4199.99 - $350 with coupon code FRESHPICKS at checkout = $3849.99. Shipping is free.

Note: Also includes bonus 400A Busbar with 6×M8 Studs.

Thanks to staff member Skillful_Pickle for sharing this deal.

About this Item:
  • Battery Capacity: 280Ah each
  • Battery Power: 14336Wh each
  • Rated Voltage: 51.2V
  • Voltage Range: 40~58.4V
  • Maximum Charge/ Discharge Current: 200A
  • Charge Temperature Range: 0-55℃
  • Discharge Temperature Range:﹣20－55℃
  • Maximum Charge Voltage: 58.4V
  • Screw size: M8
  • Battery Size: 20.5x9.9x29.3in
  • Battery Weight: 297.6lb/135kg each
  • Max. parallel units: 15
  • Connectors: RS232 / CAN / RS485
  • Manufacturer Page for more details.

Editor's Notes

Written by qwikwit | Staff

Original Post

Written by Skillful_Pickle | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
eco-worthy-us via eBay has 2-Pack ECO-WORTHY 14kWh 51.2V 280AH LiFePO4 Solar Battery Backup w/ 200A BMS + Busbar (Version2) on sale for $4199.99 - $350 with coupon code FRESHPICKS at checkout = $3849.99. Shipping is free.

Note: Also includes bonus 400A Busbar with 6×M8 Studs.

Thanks to staff member Skillful_Pickle for sharing this deal.

About this Item:
  • Battery Capacity: 280Ah each
  • Battery Power: 14336Wh each
  • Rated Voltage: 51.2V
  • Voltage Range: 40~58.4V
  • Maximum Charge/ Discharge Current: 200A
  • Charge Temperature Range: 0-55℃
  • Discharge Temperature Range:﹣20－55℃
  • Maximum Charge Voltage: 58.4V
  • Screw size: M8
  • Battery Size: 20.5x9.9x29.3in
  • Battery Weight: 297.6lb/135kg each
  • Max. parallel units: 15
  • Connectors: RS232 / CAN / RS485
  • Manufacturer Page for more details.

Editor's Notes

Written by qwikwit | Staff

Original Post

Written by Skillful_Pickle | Staff

Community Voting

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38 Comments

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Sep 08, 2025 06:09 PM
15 Posts
Joined Oct 2015
zorro6969Sep 08, 2025 06:09 PM
15 Posts
Great option and price, but you would need a lot of panels to charge this up to capacity
1
Sep 08, 2025 06:14 PM
2,929 Posts
Joined Nov 2014
ValueRangerSep 08, 2025 06:14 PM
2,929 Posts
Quote from zorro6969 :
Great option and price, but you would need a lot of panels to charge this up to capacity
You may want to double check your math for the ppwh, compared to other deals.
Sep 08, 2025 07:42 PM
931 Posts
Joined Jan 2007
sjaxkingpinSep 08, 2025 07:42 PM
931 Posts
excellent price on excellent batteries.
Sep 08, 2025 08:05 PM
60 Posts
Joined Sep 2005
partyk1d24Sep 08, 2025 08:05 PM
60 Posts
Would this work with a solar edge inverter that supports adding a battery?
Pro
Sep 08, 2025 08:09 PM
773 Posts
Joined May 2012
luddite_cyborg
Pro
Sep 08, 2025 08:09 PM
773 Posts
Lol someone complained in the last thread for this deal that they didn't include the busbars and presto, there they are
1
Sep 08, 2025 08:12 PM
110 Posts
Joined Jun 2018
earnalivingSep 08, 2025 08:12 PM
110 Posts
If I currently have solar, into a Tesla PowerWall 3 which is around 13kWh, could I add this into that setup for additional redundancy?
Sep 08, 2025 08:14 PM
528 Posts
Joined Feb 2010
vnangiaSep 08, 2025 08:14 PM
528 Posts
Bought this about 10 days ago, same price, different freebie and it was really, really quick considering it had to be shipped across the country from California to DC area. They arrived yesterday and I can attest they are REALLY heavy. Suggest strongly have a friend or two to help, or maybe just hire The Mountain for a day [reddit.com]. Busbar would be really useful in retrospect—would simplify (and reduce the cost of) the wiring.

Quote from partyk1d24 :
Would this work with a solar edge inverter that supports adding a battery?
No, Solaredge requires you to use their own battery. This is best for off-grid/hybrid string inverters, not grid-tied ones. Nothing stopping you from attaching a two-way charger or inverter, but probably not the most efficient way to do it because you'll have significant losses both ways.

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Pro
Sep 08, 2025 08:24 PM
773 Posts
Joined May 2012
luddite_cyborg
Pro
Sep 08, 2025 08:24 PM
773 Posts
So, these and the smaller server-rack batteries have welded terminals, which is great but I'm left wondering what you do if a cell fails and you have to replace it. Do these cells still have screw threads in the terminals so they can easily be joined to the replacement cell?
Sep 08, 2025 08:41 PM
528 Posts
Joined Feb 2010
vnangiaSep 08, 2025 08:41 PM
528 Posts
Quote from luddite_cyborg :
So, these and the smaller server-rack batteries have welded terminals, which is great but I'm left wondering what you do if a cell fails and you have to replace it. Do these cells still have screw threads in the terminals so they can easily be joined to the replacement cell?
Some, yes; others are welded. As far as I know (not having taken this one apart because I plan to use itSmilie) these are bolted, not welded.
Sep 08, 2025 08:45 PM
1,424 Posts
Joined Dec 2005
alphawaveSep 08, 2025 08:45 PM
1,424 Posts
Quote from luddite_cyborg :
Lol someone complained in the last thread for this deal that they didn't include the busbars and presto, there they are
They showed up on their eBay store a few days ago. I wonder if they're stateside already, or en route...
Sep 08, 2025 08:49 PM
1,424 Posts
Joined Dec 2005
alphawaveSep 08, 2025 08:49 PM
1,424 Posts
Quote from vnangia :
Busbar would be really useful in retrospect—would simplify (and reduce the cost of) the wiring.
If you bought two batteries, they will ship you bus bars free...contact them on eBay.
Sep 08, 2025 08:51 PM
41 Posts
Joined Jun 2013
woebagsSep 08, 2025 08:51 PM
41 Posts
Quote from earnaliving :
If I currently have solar, into a Tesla PowerWall 3 which is around 13kWh, could I add this into that setup for additional redundancy?
Simple answer is no. The Tesla PW3 has an integrated inverter which it is not possible to add additional batteries to. AFAIK
Last edited by woebags September 8, 2025 at 02:02 PM.
Pro
Sep 08, 2025 08:56 PM
773 Posts
Joined May 2012
luddite_cyborg
Pro
Sep 08, 2025 08:56 PM
773 Posts
Quote from vnangia :
Quote from luddite_cyborg [IMG]https://slickdeals.net/images/misc/backlink.gif[/IMG] :
So, these and the smaller server-rack batteries have welded terminals, which is great but I'm left wondering what you do if a cell fails and you have to replace it. Do these cells still have screw threads in the terminals so they can easily be joined to the replacement cell?
Some, yes; others are welded. As far as I know (not having taken this one apart because I plan to use it[IMG]https://static.slickdealscdn.com/images/smilies/smile.gif[/IMG]) these are bolted, not welded.
Not many reviews on these big boys yet but I know the Eco-Worthy 100Ah server-rack batteries are welded, so it's the same question for them
Sep 08, 2025 09:23 PM
109 Posts
Joined Oct 2017
Fraktal.MatsSep 08, 2025 09:23 PM
109 Posts
New to solar and still learning - could these be charged with line power?

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Sep 08, 2025 09:27 PM
1,424 Posts
Joined Dec 2005
alphawaveSep 08, 2025 09:27 PM
1,424 Posts
Quote from luddite_cyborg :
Not many reviews on these big boys yet but I know the Eco-Worthy 100Ah server-rack batteries are welded, so it's the same question for them
Pretty sure they're welded, since V1 was welded, but there is no porn proving this that I've seen. Repair will be cutting bus bars, drill and tap battery pads, or laser welding.
1

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