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frontpageSkillful_Pickle | Staff posted Nov 27, 2025 06:05 PM
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frontpageSkillful_Pickle | Staff posted Nov 27, 2025 06:05 PM

ECO-WORTHY 48V 100Ah Lithium LiFePO4 Stacked Style Battery

+ Free Shipping

$640

$800

20% off
eBay
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eco-worthy-us via eBay has ECO-WORTHY 48V 100Ah Lithium LiFePO4 Stacked Style Battery on sale for $799.99 - $160 when you apply coupon code CYBERWEEK20 at checkout = $639.99. Shipping is free.

Thanks to Slickdeals Staff Skillful_Pickle for sharing this deal.

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Written by johnny_miller | Staff

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Written by Skillful_Pickle | Staff
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About the Poster
eco-worthy-us via eBay has ECO-WORTHY 48V 100Ah Lithium LiFePO4 Stacked Style Battery on sale for $799.99 - $160 when you apply coupon code CYBERWEEK20 at checkout = $639.99. Shipping is free.

Thanks to Slickdeals Staff Skillful_Pickle for sharing this deal.

Editor's Notes

Written by johnny_miller | Staff

Original Post

Written by Skillful_Pickle | Staff

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25 Comments

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Nov 27, 2025 07:44 PM
6,139 Posts
Joined Dec 2005
GamerossNov 27, 2025 07:44 PM
6,139 Posts
I don't see any mention of UL listing, so these must be older inventory.
1
Nov 27, 2025 08:45 PM
273 Posts
Joined Jan 2017
RoyGeeBivNov 27, 2025 08:45 PM
273 Posts
Quote from Gameross :
I don't see any mention of UL listing, so these must be older inventory.
Judging from the front of the unit pictured it looks like the later revision.
Nov 27, 2025 09:04 PM
559 Posts
Joined Sep 2009
TribalSeekNov 27, 2025 09:04 PM
559 Posts

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

Quote from RoyGeeBiv :
Judging from the front of the unit pictured it looks like the later revision.
So for people that don't know, the only difference between V3 of this unit and the UL certified V3 units are the UL sticker - nothing about the actual hardware changed. They produced some units before they got UL certification and didn't try to go back and put the stickers on retroactively. I confirmed with an EcoWorthy rep on the DIYsolarforum that there is no hardware differences between those V3 units being sold without UL stickers on them and those with them - literally the only difference is the UL sticker & UL certificate.

My belief is that all V3 units could be considered UL certified regardless of whether the UL sticker is there or not since its the design that is certified. Maybe someone more knowledgeable about the UL process can verify if that's true or not.

For reference, I have two of these V3 100Ah EcoWorthy server rack batteries purchased earlier this year: one is UL certified and one isn't.
2
Nov 27, 2025 09:26 PM
1,546 Posts
Joined Dec 2005
alphawaveNov 27, 2025 09:26 PM
1,546 Posts
The listing matters to the AHJ over the installation permit/inspection. That means the 'sticker'. You are correct if EW changes the design, it no longer complies unless additional design models were covered under the ETL testing procedures and the UL listing covers said models.

We don't know for sure this is a UL-listed model, so I'd ask seller directly if this is a version 3 and UL-listed. Great price if both!
Nov 27, 2025 11:00 PM
38 Posts
Joined Oct 2013
GRieVoUSNov 27, 2025 11:00 PM
38 Posts
I didn't see a version listed, and the last time I got a couple, I got v1.2. I can't tell the difference besides the ports.
Nov 27, 2025 11:43 PM
559 Posts
Joined Sep 2009
TribalSeekNov 27, 2025 11:43 PM
559 Posts
V2 has the positive terminals on the right side, they changed that in V3 to have them on the left to match other brands so you can tell just by looking at the picture that this is V3 battery.
2
Nov 28, 2025 01:12 AM
62 Posts
Joined Apr 2017
jeremyhuytranNov 28, 2025 01:12 AM
62 Posts
Somehow they drop the warranty period to 3 years for this battery. Better buy the ul listed for $100 more

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Nov 28, 2025 01:25 AM
1,546 Posts
Joined Dec 2005
alphawaveNov 28, 2025 01:25 AM
1,546 Posts
Quote from TribalSeek :
V2 has the positive terminals on the right side, they changed that in V3 to have them on the left to match other brands so you can tell just by looking at the picture that this is V3 battery.
Pictures from this vendor (and others) on eBay are not a reliable way to ensure you're getting what you think. I've seen the description NOT match the pictures many times.
Nov 28, 2025 06:10 AM
1,022 Posts
Joined Sep 2015
RyanJ7344Nov 28, 2025 06:10 AM
1,022 Posts
Quote from alphawave :
Pictures from this vendor (and others) on eBay are not a reliable way to ensure you're getting what you think. I've seen the description NOT match the pictures many times.
Agreed - have ordered from Eco-Worthy before and it's always a different version of the product. One time I ordered 10 solar panels and received 3 different variations, although they were all the same spec.
If this is version 3, it's a great price.
Nov 28, 2025 06:15 AM
1,546 Posts
Joined Dec 2005
alphawaveNov 28, 2025 06:15 AM
1,546 Posts
Quote from RyanJ7344 :
Agreed - have ordered from Eco-Worthy before and it's always a different version of the product. One time I ordered 10 solar panels and received 3 different variations, although they were all the same spec.
If this is version 3, it's a great price.
Frustrating, and it happens across vendors. I suppose they're in a hurry to sell, post up misleading 'renders' to get the listing posted, and then have to get called out to rectify the listing.
Nov 28, 2025 08:32 AM
5,996 Posts
Joined Mar 2006
Core2QuadNov 28, 2025 08:32 AM
5,996 Posts
Not bad especially with 10% CB
1
Nov 28, 2025 08:37 AM
5,996 Posts
Joined Mar 2006
Core2QuadNov 28, 2025 08:37 AM
5,996 Posts
What cells do they use?
Nov 28, 2025 08:40 AM
1,546 Posts
Joined Dec 2005
alphawaveNov 28, 2025 08:40 AM
1,546 Posts
Quote from Core2Quad :
What cells do they use?
Typically Rept 100AH, welded, JBD BMS

eBay store confirmed these are essentially the rack batteries, but with different presentation, so not UL listed.
Last edited by alphawave November 28, 2025 at 01:42 AM.
2
Nov 29, 2025 07:55 AM
1 Posts
Joined Oct 2025
pcsbhatinNov 29, 2025 07:55 AM
1 Posts
Do they qualify for 30% fed energy credit ??

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Nov 29, 2025 02:22 PM
570 Posts
Joined Sep 2007
SANDY2424Nov 29, 2025 02:22 PM
570 Posts
Quote from Core2Quad :
Not bad especially with 10% CB
What is CB is offering 10pct?

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