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popularSkillful_Pickle | Staff posted Aug 12, 2026 4:58 PM

ECO-WORTHY 4Pack 48V 100AH Lithium Battery UL1973+UL9540A+RACK6 V3 Server Rack $3,250 + Free Shipping $3249.99

$3,250

$3,750

13% off
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Deal Details
eco-worthy-us via eBay [ebay.com] has ECO-WORTHY 4Pack 48V 100AH Lithium Battery UL1973+UL9540A+RACK6 V3 Server Rackon sale for $3749.99 - $500 off w/ coupon code BRANDS20 at checkout = $3249.99, from 10th August and 16th August. Shipping is free.

Includes:
  • 4 x 48V 100Ah LiFePO4 Battery (UL1973 & UL9540A Certified)
  • 1 x RACK6 V3 Enclosed Server Rack Battery Cabinet, Lockable ESS Battery Enclosure with 600A Busbar, UL9540 System Compatible, Safe Indoor Energy Storage Solution
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Deal Details
Community Notes
About the Poster
eco-worthy-us via eBay [ebay.com] has ECO-WORTHY 4Pack 48V 100AH Lithium Battery UL1973+UL9540A+RACK6 V3 Server Rackon sale for $3749.99 - $500 off w/ coupon code BRANDS20 at checkout = $3249.99, from 10th August and 16th August. Shipping is free.

Includes:
  • 4 x 48V 100Ah LiFePO4 Battery (UL1973 & UL9540A Certified)
  • 1 x RACK6 V3 Enclosed Server Rack Battery Cabinet, Lockable ESS Battery Enclosure with 600A Busbar, UL9540 System Compatible, Safe Indoor Energy Storage Solution

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2 Comments

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Aug 12, 2026 7:17 PM
220 Comments
Joined Nov 2008
blehblehblehAug 12, 2026 7:17 PM
220 Comments

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

Eco Worthy batteries are a bit confusing and the UL certification doesn't help much either.

These are 9540A which means you might have problem doing a grid tied system with these. You also might have issues with your insurance. You need them to be UL 9540

Most people will be better off buying the Cubix 100. You still need to be careful with those and confirm they are UL 9540, but they are making 9540 batteries which should be able to connect to any UL 1741 inverter and pass inspection and get insured.
4
Pro
Aug 13, 2026 11:13 AM
493 Comments
Joined Oct 2004
Robika
Pro
Aug 13, 2026 11:13 AM
493 Comments
Will Prowse explaining UL certifications:
https://www.youtube.com/watch?v=MJ_-UjYNDmE
confirming what blehblehbleh said above.

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