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frontpageSkillful_Pickle | Staff posted Sep 03, 2025 07:15 PM
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frontpageSkillful_Pickle | Staff posted Sep 03, 2025 07:15 PM

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

+ Free Shipping

$780

$975

20% off
eBay
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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

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19 Comments

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Yesterday 01:48 AM
26 Posts
Joined Jul 2022
FalconersYesterday 01:48 AM
26 Posts
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?
Yesterday 02:17 AM
336 Posts
Joined Dec 2005
warklantdYesterday 02:17 AM
336 Posts
You mentioned Will, so you've already done your homework. It has been cheaper before, but this is still a pretty solid price overall.
Yesterday 03:02 AM
3 Posts
Joined Nov 2020
lucasmanningYesterday 03:02 AM
3 Posts
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
Today 03:22 AM
1,664 Posts
Joined Feb 2015
kherbinoskieToday 03:22 AM
1,664 Posts
Can a Victron Cerbo GX read and monitor this?
Today 04:39 AM
605 Posts
Joined May 2010
Dman25Today 04:39 AM
605 Posts
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
Today 05:26 AM
400 Posts
Joined Jul 2005
chivasToday 05:26 AM
400 Posts
only issue is it doesn't play well with v2. can't get closed loop to work together.
1
Today 08:14 AM
90 Posts
Joined Feb 2012
Ross1987Today 08:14 AM
90 Posts
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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Today 02:11 PM
61 Posts
Joined Nov 2009
azwillnjToday 02:11 PM
61 Posts
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.
Today 03:10 PM
1,010 Posts
Joined May 2006
checkthatToday 03:10 PM
1,010 Posts
Does this need charge controller for solar panel or can the panels be connected directly?
Today 03:45 PM
1,862 Posts
Joined Apr 2006
esc1aToday 03:45 PM
1,862 Posts
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
Today 04:03 PM
35 Posts
Joined Nov 2023
AquaStag976Today 04:03 PM
35 Posts
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?
Pro
Today 05:09 PM
769 Posts
Joined May 2012
luddite_cyborg
Pro
Today 05:09 PM
769 Posts
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
Today 05:25 PM
553 Posts
Joined Sep 2018
ProtegeToday 05:25 PM
553 Posts
get 4 280's for $1500. 3x the capacity for less than 2x the cost
Pro
Today 05:40 PM
769 Posts
Joined May 2012
luddite_cyborg
Pro
Today 05:40 PM
769 Posts
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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Today 06:05 PM
400 Posts
Joined Jul 2005
chivasToday 06:05 PM
400 Posts
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

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