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expiredSkillful_Pickle | Staff posted Sep 3, 2025 7:15 PM

ECO-WORTHY 51.2V 100Ah 5.12KWh LiFePO4 3U Size V3 Lithium Battery

$780

$975

20% off
+ Free Shippingat eBay
25 Comments
11.3K Views
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Deal Details
eco-worthy-us via eBay has ECO-WORTHY 51.2V 100Ah 5.12KWh LiFePO4 3U Size V3 Server Rack Lithium Battery on sale for $974.99 - 20% with coupon code HAPPY30TH at checkout = $779.99. Shipping is free.

Thanks to Staff Member Skillful_Pickle for sharing this deal.

About this Item:
  • Battery Specs: 100Ah capacity, 5120Wh power, 51.2V rated voltage, 40-58V range.
  • Charge/Discharge: 100A maximum charge/discharge current, 58.4V maximum charge voltage.
  • Temperature Range: Charges at 0-55℃, discharges at -20-55℃.
  • Physical Details: 22.55 x 17.13 x 5.63 inches, 95 lbs, M8 screw size.
  • Included: Comes with a pair of battery parallel cables.

Editor's Notes

Written by SaltyOne | 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 ECO-WORTHY 51.2V 100Ah 5.12KWh LiFePO4 3U Size V3 Server Rack Lithium Battery on sale for $974.99 - 20% with coupon code HAPPY30TH at checkout = $779.99. Shipping is free.

Thanks to Staff Member Skillful_Pickle for sharing this deal.

About this Item:
  • Battery Specs: 100Ah capacity, 5120Wh power, 51.2V rated voltage, 40-58V range.
  • Charge/Discharge: 100A maximum charge/discharge current, 58.4V maximum charge voltage.
  • Temperature Range: Charges at 0-55℃, discharges at -20-55℃.
  • Physical Details: 22.55 x 17.13 x 5.63 inches, 95 lbs, M8 screw size.
  • Included: Comes with a pair of battery parallel cables.

Editor's Notes

Written by SaltyOne | Staff

Original Post

Written by Skillful_Pickle | Staff

Community Voting

Deal Score
+14
Good Deal
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Top Comments

lucasmanning
7Comments
10Reputation
I'm using 3 of these batteries and an eg4 6000xp. Everything working flawlessly
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25 Comments

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Sep 4, 2025 1:48 AM
50 Comments
Joined Jul 2022
FalconersSep 4, 2025 1:48 AM
50 Comments
So I'll ask it... from my checks it looks like this is a relatively solid deal on the capacity here... I'm wondering if I paired this with Will Prowse's recommended inverter... seems like a solid offgrid option. Any opinions on the pricing and whether its worth it?
Sep 4, 2025 2:17 AM
339 Comments
Joined Dec 2005
warklantdSep 4, 2025 2:17 AM
339 Comments
You mentioned Will, so you've already done your homework. It has been cheaper before, but this is still a pretty solid price overall.
Sep 4, 2025 3:02 AM
7 Comments
Joined Nov 2020
lucasmanningSep 4, 2025 3:02 AM
7 Comments

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

Quote from Falconers :
So I'll ask it... from my checks it looks like this is a relatively solid deal on the capacity here... I'm wondering if I paired this with Will Prowse's recommended inverter... seems like a solid offgrid option. Any opinions on the pricing and whether its worth it?
I'm using 3 of these batteries and an eg4 6000xp. Everything working flawlessly
1
Sep 5, 2025 3:22 AM
1.8K Comments
Joined Feb 2015
kherbinoskieSep 5, 2025 3:22 AM
1.8K Comments
Can a Victron Cerbo GX read and monitor this?
1
Sep 5, 2025 4:39 AM
620 Comments
Joined May 2010
Dman25Sep 5, 2025 4:39 AM
620 Comments
Quote from lucasmanning :
I'm using 3 of these batteries and an eg4 6000xp. Everything working flawlessly
did you find an online tutorial for this? I'm going to purchase a 12000xp and was debating over these batteries and eg4 batteries
Sep 5, 2025 5:26 AM
431 Comments
Joined Jul 2005
chivasSep 5, 2025 5:26 AM
431 Comments
only issue is it doesn't play well with v2. can't get closed loop to work together.
1
2
Sep 5, 2025 8:14 AM
101 Comments
Joined Feb 2012
Ross1987Sep 5, 2025 8:14 AM
101 Comments

Our community has rated this post as helpful. If you agree, why not thank Ross1987

This is one of eco-worthy's few UL-rated products. That question seems to come up a lot in these threads.
1

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Sep 5, 2025 2:11 PM
67 Comments
Joined Nov 2009
azwillnjSep 5, 2025 2:11 PM
67 Comments
I was recently told by Signature Solar and Shop Solar that the new code for new installs requires the inverter and battery to be certified together as one unit and even though this battery is UL certified by itself you can't get it approved for a grid tied application.
1
Sep 5, 2025 3:10 PM
1.1K Comments
Joined May 2006
checkthatSep 5, 2025 3:10 PM
1.1K Comments
Does this need charge controller for solar panel or can the panels be connected directly?
Sep 5, 2025 3:45 PM
1.9K Comments
Joined Apr 2006
esc1aSep 5, 2025 3:45 PM
1.9K Comments
Quote from checkthat :
Does this need charge controller for solar panel or can the panels be connected directly?
You will need a inverter.
Something like this deal.
https://slickdeals.net/f/18575863-eco-worthy-5120wh-backup-power-48v-100ah-lifepo4-battery-v3-5000w-hybrid-inverter-1199-99-free-shipping?v=1&src=SiteSearch
1
Sep 5, 2025 4:03 PM
65 Comments
Joined Nov 2023
AquaStag976Sep 5, 2025 4:03 PM
65 Comments
With these types of systems, if I needed to add or replace one 10 years from now, how likely is it that eco-worthy will still make a compatible unit?
1
Sep 5, 2025 5:09 PM
983 Comments
Joined May 2012
luddite_cyborgSep 5, 2025 5:09 PM
983 Comments
Quote from azwillnj :
I was recently told by Signature Solar and Shop Solar that the new code for new installs requires the inverter and battery to be certified together as one unit and even though this battery is UL certified by itself you can't get it approved for a grid tied application.
That's just hostile (benefiting the big manuf. and some elec co. that are anti-solar). Oh well, screw them-- if you've got the batteries you have much less incentive to be tied to grid anyway
1
Sep 5, 2025 5:25 PM
671 Comments
Joined Sep 2018
ProtegeSep 5, 2025 5:25 PM
671 Comments
get 4 280's for $1500. 3x the capacity for less than 2x the cost
Sep 5, 2025 5:40 PM
983 Comments
Joined May 2012
luddite_cyborgSep 5, 2025 5:40 PM
983 Comments
Quote from Protege :
get 4 280's for $1500. 3x the capacity for less than 2x the cost
Yes and no: it seems that for efficiency/safety/battery health (and other reasons, I'm still learning) you want the minimum number of BMS units and/or you want them talking to each other (so ideally just a few large BMS units that also communicate with each other to keep all cells in system balanced). I'm just a layman getting up to speed in this area so please fact-check me, experts
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Sep 5, 2025 6:05 PM
431 Comments
Joined Jul 2005
chivasSep 5, 2025 6:05 PM
431 Comments
Quote from AquaStag976 :
With these types of systems, if I needed to add or replace one 10 years from now, how likely is it that eco-worthy will still make a compatible unit?
that is a very tricky question because just earlier this year I bought 4 V2 from them and not even a month and a half 2 months later they come out with V3 which is not compatible with V2 so now I'm stuck with them and not able to upgrade
1

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