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Item 1 of 2
expiredmihanich posted Nov 5, 2024 4:41 PM
2-Pack Eco-Worthy 12V 10Ah 256wH Lithium LiFePO4 Battery Deep Cycle for UPS
$56
$70
20% off
+ Free Shippingat eBay
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eco-worthy-us via eBay has 2-Pack Eco-Worthy 12V 10Ah 256wH Lithium LiFePO4 Battery Deep Cycle for UPS on sale for $69.99 - $14 (20%) off when you apply coupon code TOPGIFTS20 on the checkout page = $55.99. Shipping is free.
Thanks to Community Member mihanich for sharing this deal.
About this product:
Thanks to Community Member mihanich for sharing this deal.
About this product:
- Can use for 2000 cycles and maintain 80% capacity
- Built-in Battery Management System (BMS) protects from overcharging, deep discharge, overload, overheating and short circuit, and low self-discharge rate
- Weighs only 2.43 pounds, which is only 1/3 of the weight of a lead-acid battery
Editor's Notes
Written by jimmytx | Staff- About this Store:
- eco-worthy-us via eBay has a 98.8%% positive feedback with over 82K items sold.
- 30 days returns. Seller pays for return shipping.
- Additional Information:
- Coupon offer valid through November 10, 2024 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 12V 10Ah 256wH Lithium LiFePO4 Battery Deep Cycle for UPS on sale for $69.99 - $14 (20%) off when you apply coupon code TOPGIFTS20 on the checkout page = $55.99. Shipping is free.
Thanks to Community Member mihanich for sharing this deal.
About this product:
Thanks to Community Member mihanich for sharing this deal.
About this product:
- Can use for 2000 cycles and maintain 80% capacity
- Built-in Battery Management System (BMS) protects from overcharging, deep discharge, overload, overheating and short circuit, and low self-discharge rate
- Weighs only 2.43 pounds, which is only 1/3 of the weight of a lead-acid battery
Editor's Notes
Written by jimmytx | Staff- About this Store:
- eco-worthy-us via eBay has a 98.8%% positive feedback with over 82K items sold.
- 30 days returns. Seller pays for return shipping.
- Additional Information:
- Coupon offer valid through November 10, 2024 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.
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Top Comments
I have two older APC Back-UPS units and one APC Smart-UPS unit that all successfully charge LiFePO4 batteries to about 85%. I've had them running for almost a year now with no issues.
I also have an older Tripp-Lite UPS which does NOT change LiFePO4 batteries correctly.
If you decide to try these with other UPS makes/models, please report back your results.
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Our community has rated this post as helpful. If you agree, why not thank percoseth
I applied the code to the item in the cart, then changed my mind and removed the item from the cart. When I then tried to apply the same code to another item, I got the error that the code was already used.
You can try contacting their Customer Service to see if they can assist.
Our community has rated this post as helpful. If you agree, why not thank TC10284
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SLA battery reaches 100% at 12.9V.
FLA battery reaches 100% at 12.65V.
LiFePO4 battery reaches 100% at 13.6V
My APC units stop charging when the batteries are at around 80%, which helps extend the lifespan.
I'm guessing this voltage difference is also what confuses some older UPSes, and they refuse to charge any battery past 12.9V, which would be only 20% charge for LiFePo4.
Still, if you happen to have LiFePO4 lifespan data at 100% SoC, please do share That would be useful to know for other applications.
1) Distribute your devices across multiple UPS units if you can (e.g. one UPS for all the network gear, another for a PC and etc.). For a PC, use UPS that can hold multiple batteries. Check if any of your UPSes have ports for external batteries.
2) Connect multiple batteries in parallel. This will increase available current while keeping the voltage the same. This will give you 8-10A per battery, so 5 batteries should allow you to draw 400W or so.
3) Invest in a larger capacity battery. They have higher discharge rates and generally offer better capacity/$. You won't be able to fit it into a UPS case, but if space is not an issue that could be a great option. Some of those even come with Bluetooth connectivity, which is quite helpful.
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UPS figures out the battery state of charge by checking the battery voltage. LiFePO4 battery voltages are just a hair higher than those for SLA batteries, so UPS will stop charging the LiFePO4 battery before it is fully charged, assuming that the full charge has been reached. Look up voltage charts for various battery chemistries, and it'll make more sense.
I hope this helps.
Actually, it doesn't really matter if the batteries are connected in parallel or in series. See example for two batteries below.
In parallel you get 12V * (8A * 2) = 192W
In series you get (12V * 2) * 8A = 192W
SLA battery reaches 100% at 12.9V.
FLA battery reaches 100% at 12.65V.
LiFePO4 battery reaches 100% at 13.6V
My APC units stop charging when the batteries are at around 80%, which helps extend the lifespan.
I'm guessing this voltage difference is also what confuses some older UPSes, and they refuse to charge any battery past 12.9V, which would be only 20% charge for LiFePo4.
Still, if you happen to have LiFePO4 lifespan data at 100% SoC, please do share That would be useful to know for other applications.
My favorite was Linus tech tips showed some scientific data talking about the lithium ion batteries in smart phones and his illustration showing keeping a battery between 30-80% significantly lowered the aging process compared to leaving it on the charger over night. Although a different battery chemistry, it is similar and both suffer from the same problem over over charging because it's harder to squeeze all the last few electrons in there and that squeezing them in there is what increases the age more.
So sick or having to buy a new battery every year...
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