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2-Pk ECO-WORTHY 102Wh 12V 8AH LiFePO4 Lithium Battery for UPS
$40
$50
20% off
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eco-worthy-us via eBay has 2-Pack ECO-WORTHY 102Wh 12V 8AH LiFePO4 Lithium Battery for UPS on sale for $49.99 - $10 (20%) off when you apply coupon code FAVEDEAL20 on the checkout page = $39.99. Shipping is free.
Thanks to Staff Member Red_Liz for sharing this deal.
About this product:
Thanks to Staff Member Red_Liz for sharing this deal.
About this product:
- 12V 8Ah LiFePO4 lithium batteries w/ 102Wh capacity
- Built-in BMS protects against overcharge and short circuit
- Maintains 80% capacity after 3000 deep cycles
- Supports fast charging, solar charging, and capacity expansion
- Suitable for UPS, RV, marine, off-grid, and backup power systems
Editor's Notes
Written by qwikwit | Staff- About this Store:
- eco-worthy-us via eBay has a 99.1% positive feedback with over 141K items sold.
- 30 days returns. Seller pays for return shipping.
- Additional Information:
- Coupon offer valid through June 14, 2026 at 11:59PM PT, while supplies last.
- Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
eco-worthy-us via eBay has 2-Pack ECO-WORTHY 102Wh 12V 8AH LiFePO4 Lithium Battery for UPS on sale for $49.99 - $10 (20%) off when you apply coupon code FAVEDEAL20 on the checkout page = $39.99. Shipping is free.
Thanks to Staff Member Red_Liz for sharing this deal.
About this product:
Thanks to Staff Member Red_Liz for sharing this deal.
About this product:
- 12V 8Ah LiFePO4 lithium batteries w/ 102Wh capacity
- Built-in BMS protects against overcharge and short circuit
- Maintains 80% capacity after 3000 deep cycles
- Supports fast charging, solar charging, and capacity expansion
- Suitable for UPS, RV, marine, off-grid, and backup power systems
Editor's Notes
Written by qwikwit | Staff- About this Store:
- eco-worthy-us via eBay has a 99.1% positive feedback with over 141K items sold.
- 30 days returns. Seller pays for return shipping.
- Additional Information:
- Coupon offer valid through June 14, 2026 at 11:59PM PT, while supplies last.
- Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
Community Voting
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Top Comments
Here's one of the few listings I saw where discharge current was listed at all.
https://www.amazon.co.u
Community Reviews
These ECO-WORTHY 12V 8Ah LiFePO4 batteries look best for small, low power backup or solar setups, especially sheds, lights, or a compact UPS. The chemistry is viewed as safer than other lithium types, and the built in cutoff helps them tolerate deep discharge better than lead acid. The main limitation is output and capacity, with published specs pointing to only 10 amp discharge and very short runtime for high load gear. Compatibility is another concern because many UPS units may not charge LiFePO4 correctly or handle the different battery behavior.
Common Questions (5)
Only if your UPS can charge LiFePO4 at the right voltage and current. Many UPS units are set up for SLA batteries and may not charge these properly, and the 8Ah/10A rating can mean only a few minutes of runtime on a typical computer UPS.
The published discharge rating is 10A, which works out to about 120W per battery at 12V, or roughly 240W for a typical UPS using both batteries. That makes them fine for low-load gear, but not for high-draw devices like a trolling motor, CPAP, or RV loads.
Yes, they fit small off-grid uses well, especially with an 80W-100W solar panel and a cheap charge controller. They are a better match for lights, sheds, and other low-power loads than for long-runtime high-energy devices.
Yes, four of these have been wired in series to make a 48V pack for an e-bike and it reportedly works well for extending range. That kind of setup is more about matching voltage for a specific project than using them as a drop-in UPS battery.
Yes, in some CyberPower sine-wave UPS setups the UPS can drain the battery until the BMS safety cutoff trips, after which the battery may not charge again. That makes compatibility and charging behavior a real concern for UPS use.
AI-generated summary based on comments from the community. Updated ago
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42 Comments
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How small/large are these, and are they good to run a setup for multiple security cameras (5V) off-grid using a 30-watt or larger solar panel for each battery?
unless your UPS has adjustable charging voltage like in a service menu, most are not going to be able to switch from SLA to lifepo4 as nice as that would be
most UPS simply won't charge lifepo4 properly
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the bottomline for my situation: the old/aging UPS just wouldn't know what to do with the different battery type.
It is easier to be unhelpful. But yeah, the person is just asking questions.
The 8ah batteries in this deal are VERY low capacity batteries. These would be great hooked up to a small solar panel to keep some lights running or something, but they are not going to run a trolling motor or a CPAP or power an RV or anything with a high load for very long. Even as a UPS, I'd wager you're only getting a few minutes here on a low-wattage rig.
If you're looking for a battery to function as a power source for a high-energy device, then you probably want 100ah or more.
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Would have enough juice to get through several days of low light...
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