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expiredf12_26 | Staff posted Sep 15, 2025 10:05 PM
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expiredf12_26 | Staff posted Sep 15, 2025 10:05 PM

6-Pack ECO-WORTHY 48V 100Ah LiFePO4 Batteries + Battery Monitor + Server Rack

+ Free Shipping

$4,680

$5,150

9% off
eBay
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Deal Details
eco-worthy-us via eBay has 6-Pack ECO-WORTHY 48V 100Ah LiFePO4 Batteries + Battery Monitor + Server Rack on sale for $5149.99 - $470 when you apply coupon code ECOWORTHY470 at checkout = $4679.99. Shipping is free.

Thanks to Staff Member f12_26 for sharing this deal.

Note: You must apply coupon code ECOWORTHY470 at checkout to get the deal price; do not use any other code listed on the product page.

Includes:
  • 6-Pack ECO-WORTHY 48V 100Ah LiFePO4 Batteries (V3)
  • 48V Battery Monitor
  • 6-Tier Server Rack
Battery Features:
  • ECO-WORTHY 48V(51.2V) Server Rack Battery supports CAN/RS485 for seamless communication with popular all-in-one solar inverters. You can also easily monitor your battery's status through the mobile app, which supports both Bluetooth and WiFi connections. Stay informed on your battery's health and performance in real-time, all from the convenience of your smartphone.
  • Battery is built for safety with a durable full-metal shell and a 100A BMS that provides multiple layers of protection. It also integrates a 125A air switch and a battery power switch to ensure your system stays safe and secure under any conditions..
  • Battery comes fully equipped with all necessary accessories, including parallel wires, communication cables, grounding wires, protective terminal covers, terminal screws, and a user manual, ensuring you're ready to go straight out of the box.

Editor's Notes

Written by StrawMan86 | Staff
  • About this Deal:
    • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
    • This deal is $20 less than this previous Frontpage Deal in mid-July.
    • Our research indicates that this deal is $539.95 less (10.3% savings) than the next best available price from a reputable merchant with prices starting from $5219.94 at the time of this posting.
    • Offer valid for a limited time only /while supplies last.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About this Store:
    • eco-worthy-us via eBay: 98.7% positive feedback from over 19,800 total feedback | 125K items sold.
    • 30 days returns. Seller pays for return shipping.

Original Post

Written by f12_26 | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
eco-worthy-us via eBay has 6-Pack ECO-WORTHY 48V 100Ah LiFePO4 Batteries + Battery Monitor + Server Rack on sale for $5149.99 - $470 when you apply coupon code ECOWORTHY470 at checkout = $4679.99. Shipping is free.

Thanks to Staff Member f12_26 for sharing this deal.

Note: You must apply coupon code ECOWORTHY470 at checkout to get the deal price; do not use any other code listed on the product page.

Includes:
  • 6-Pack ECO-WORTHY 48V 100Ah LiFePO4 Batteries (V3)
  • 48V Battery Monitor
  • 6-Tier Server Rack
Battery Features:
  • ECO-WORTHY 48V(51.2V) Server Rack Battery supports CAN/RS485 for seamless communication with popular all-in-one solar inverters. You can also easily monitor your battery's status through the mobile app, which supports both Bluetooth and WiFi connections. Stay informed on your battery's health and performance in real-time, all from the convenience of your smartphone.
  • Battery is built for safety with a durable full-metal shell and a 100A BMS that provides multiple layers of protection. It also integrates a 125A air switch and a battery power switch to ensure your system stays safe and secure under any conditions..
  • Battery comes fully equipped with all necessary accessories, including parallel wires, communication cables, grounding wires, protective terminal covers, terminal screws, and a user manual, ensuring you're ready to go straight out of the box.

Editor's Notes

Written by StrawMan86 | Staff
  • About this Deal:
    • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
    • This deal is $20 less than this previous Frontpage Deal in mid-July.
    • Our research indicates that this deal is $539.95 less (10.3% savings) than the next best available price from a reputable merchant with prices starting from $5219.94 at the time of this posting.
    • Offer valid for a limited time only /while supplies last.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About this Store:
    • eco-worthy-us via eBay: 98.7% positive feedback from over 19,800 total feedback | 125K items sold.
    • 30 days returns. Seller pays for return shipping.

Original Post

Written by f12_26 | Staff

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Top Comments

alphawave
1460 Posts
251 Reputation
Big news...today it was announced that the 100AH server rack batteries have successfully achieved both UL 1973 and UL 9540A listing, and current stock at the warehouse has the appropriate stickers affixed from factory, so orders from Eco Worthy website and Amazon will have stickers asap, with eBay sales by Sept. 22. They are aware of CEC listing and should apply there too shortly.
ben_r_
14560 Posts
4328 Reputation
Wow, 28.8KWh for under $5K. Wild. For reference, that's more capacity than two Tesla Powerwall 3 units and those cost around $10K EACH!
checkthat
1024 Posts
171 Reputation
Nominal 48v

40 Comments

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Sep 15, 2025 10:25 PM
17 Posts
Joined Nov 2013
BonafideLurker125Sep 15, 2025 10:25 PM
17 Posts
The pictures all show 51.2v but the information all notes 48v. Anyone know what the deal is?
Sep 15, 2025 10:40 PM
1,024 Posts
Joined May 2006
checkthatSep 15, 2025 10:40 PM
1,024 Posts
Quote from BonafideLurker125 :
The pictures all show 51.2v but the information all notes 48v. Anyone know what the deal is?
Nominal 48v
Sep 16, 2025 03:14 AM
616 Posts
Joined Apr 2011
GiraffasaurusSep 16, 2025 03:14 AM
616 Posts
Quote from BonafideLurker125 :
The pictures all show 51.2v but the information all notes 48v. Anyone know what the deal is?
Cells are 3.2v nominal but quoted in packs as 3v. These are 16s packs so 51.2v nominal charge but typically quoted at 48v.
Sep 16, 2025 06:00 AM
14,560 Posts
Joined Jul 2006
ben_r_Sep 16, 2025 06:00 AM
14,560 Posts
Wow, 28.8KWh for under $5K. Wild. For reference, that's more capacity than two Tesla Powerwall 3 units and those cost around $10K EACH!
1
Pro
Sep 16, 2025 06:04 AM
3,203 Posts
Joined May 2006
nicedog
Pro
Sep 16, 2025 06:04 AM
3,203 Posts

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

Quote from ben_r_ :
Wow, 28.8KWh for under $5K. Wild. For reference, that's more capacity than two Tesla Powerwall 3 units and those cost around $10K EACH!
Yes seems like a good deal, this is eligible for the 30% tax credit as well.
2
Sep 16, 2025 06:30 AM
895 Posts
Joined Nov 2007
KaladinStormbornSep 16, 2025 06:30 AM
895 Posts
Are these UL listed and allowed in permitted installations? The eg4 power pros are 30%+ more expensive but I think far more compact than 6 of these things?
Sep 16, 2025 12:22 PM
257 Posts
Joined Jan 2017
RoyGeeBivSep 16, 2025 12:22 PM
257 Posts
This is currently the best deal going by kind of a long shot. But if you think batteries are cheap now, wait about six months. Battery production is WAY beyond demand right now, and solid state batts will make older tech obsolete, then you have Na+ batts already hitting the market. Prices are gonna be insane.

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Sep 16, 2025 12:45 PM
61 Posts
Joined May 2023
FerksSep 16, 2025 12:45 PM
61 Posts
okay i gotta ask what people do with these
Sep 16, 2025 01:14 PM
784 Posts
Joined Oct 2008
GalahadSep 16, 2025 01:14 PM
784 Posts
Quote from Ferks :
okay i gotta ask what people do with these
Just guessing, but ...
Power stuffs (e.g. possibly a whole house for a day ore more with this kind of capacity) when intermittent energy sources (e.g. solar panels) do not provide power/energy, OR if you have a big differential in electricity costs at different times of the day, store energy at low cost hours to use during high cost hours, OR have it as a backup during power outages ...
QA
Sep 16, 2025 01:21 PM
1,374 Posts
Joined Jan 2012
dimjim
QA
Sep 16, 2025 01:21 PM
1,374 Posts
Quote from RoyGeeBiv :
This is currently the best deal going by kind of a long shot. But if you think batteries are cheap now, wait about six months. Battery production is WAY beyond demand right now, and solid state batts will make older tech obsolete, then you have Na+ batts already hitting the market. Prices are gonna be insane.

I'm not an expert on Sodium batteries. They may come up winning in the long term, but the linear discharge curve (along with voltage sag) will likely be a challenge that loads/devices and inverters will need to adapt to accommodate. LifePO4 is a winner in the short to medium term IMO.
Sep 16, 2025 06:48 PM
406 Posts
Joined Jul 2005
chivasSep 16, 2025 06:48 PM
406 Posts
Quote from Ferks :
okay i gotta ask what people do with these
depending where you are located, in Houston we get a choice of free nights so you can charge these during the night and use them during the day and just pay CenterPoint's delivery cost. you can also use this with a sub panel and have backup power during an outage, say a hurricane, and have AC and fridge running until the infrastructure gets back up. or get solar to charge this with an inverter and be completely off the grid removing a bill from your life. paying for power ahead and you'll make it up after a couple of years.
1
Sep 17, 2025 07:14 AM
1,635 Posts
Joined Oct 2006
bjammSep 17, 2025 07:14 AM
1,635 Posts
connect two of these for 200amp service?
1
Sep 18, 2025 03:01 AM
307 Posts
Joined Dec 2013
S2KPHDSep 18, 2025 03:01 AM
307 Posts
eco-worthy or EG4? going to build off-grid battery system to charge tesla.
Sep 18, 2025 10:48 AM
297 Posts
Joined Oct 2017
DanL6043Sep 18, 2025 10:48 AM
297 Posts
Quote from Ferks :
okay i gotta ask what people do with these
Most people connect them to a solar inverter and battery management system to use for off-grid or grid backup DIY solar systems. I don't believe these are UL-listed, so they wouldn't qualify for grid feed systems, as most utility companies wouldn't allow it. These aren't quite as good a quality as some other DIY brands, but this is an outstanding deal. Usually, each 48V rack battery will cost $1,000+ without the rack, etc.

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Sep 18, 2025 03:19 PM
364 Posts
Joined May 2019
upxSep 18, 2025 03:19 PM
364 Posts
30.7 kWh total <--- this relevant piece of info doesn't seem to be in the SD description.

What's the minimum charge for an electrician to install this, an inverter, subpanel, and grid disconnect switch?

.
Also, this seems like a better deal with 2 12kW inverters for $5600:
https://slickdeals.net/f/18609280-eco-worthy-home-backup-power-2-48v-280ah-battery-2-12kw-hybrid-inverter-5650-free-shipping
Last edited by upx September 18, 2025 at 08:39 AM.

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