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expiredRed_Liz | Staff posted Aug 12, 2025 06:45 PM
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expiredRed_Liz | Staff posted Aug 12, 2025 06:45 PM

ECO-WORTHY 12V 20Ah LiFePO4 Lithium Battery $47.25 + Free Shipping

$47

$63

25% off
Amazon
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ECO-WORTHY US via Amazon [amazon.com] has ECO-WORTHY 12V 20Ah LiFePO4 Lithium Battery w/ 4000+ Cycles + Built-in BMS for $62.99 - 25% off w/ code EX2OFNZF at checkout = $47.24. Shipping is free.

About this product:
  • 4000+ Recharge Cycles: Lasts 8x longer than traditional lead-acid batteries (only 300-400 cycles)
  • Only 4.85 lbs – Ultra lightweight and portable, easy to carry and install anywhere
  • Built-in BMS: Smart protection from overcharge, over-discharge, short circuit. And keep balance between battery cells
  • Multiple Uses: Perfect for trolling motors, mobility scooters, e-scooters, kids' ride-on cars, ham radio
  • Expandable: Supports up to 4 batteries in series and unlimited parallel connections
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About the Poster
ECO-WORTHY US via Amazon [amazon.com] has ECO-WORTHY 12V 20Ah LiFePO4 Lithium Battery w/ 4000+ Cycles + Built-in BMS for $62.99 - 25% off w/ code EX2OFNZF at checkout = $47.24. Shipping is free.

About this product:
  • 4000+ Recharge Cycles: Lasts 8x longer than traditional lead-acid batteries (only 300-400 cycles)
  • Only 4.85 lbs – Ultra lightweight and portable, easy to carry and install anywhere
  • Built-in BMS: Smart protection from overcharge, over-discharge, short circuit. And keep balance between battery cells
  • Multiple Uses: Perfect for trolling motors, mobility scooters, e-scooters, kids' ride-on cars, ham radio
  • Expandable: Supports up to 4 batteries in series and unlimited parallel connections

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12 Comments

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Aug 14, 2025 07:10 AM
147 Posts
Joined Mar 2011
leecewestAug 14, 2025 07:10 AM
147 Posts
Anyone have good experience with this brand? The 20Ah Eco-worthy battery I got in May initially showed a capacity of 19.3Ah. Now after light use 4 times it shows only 18.7 Ah. I just got a 20Ah battery from a brand I've had luck with and it measured 21.1Ah and its normal price is $45. I'm using a 12Ah battery from the cheaper brand as a replacement for a lead-acid battery in a small UPS (which can be hard on LiFePO4 batteries) and after a year it still tests out above 12Ah.
Aug 14, 2025 08:43 AM
573 Posts
Joined Feb 2020
MultiMatrixAug 14, 2025 08:43 AM
573 Posts

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

Quote from leecewest :
Anyone have good experience with this brand? The 20Ah Eco-worthy battery I got in May initially showed a capacity of 19.3Ah. Now after light use 4 times it shows only 18.7 Ah. I just got a 20Ah battery from a brand I've had luck with and it measured 21.1Ah and its normal price is $45. I'm using a 12Ah battery from the cheaper brand as a replacement for a lead-acid battery in a small UPS (which can be hard on LiFePO4 batteries) and after a year it still tests out above 12Ah.
which brand are you talking about?
1
Aug 14, 2025 04:41 PM
285 Posts
Joined Sep 2012
AvantNateAug 14, 2025 04:41 PM
285 Posts
Quote from leecewest :
Anyone have good experience with this brand? The 20Ah Eco-worthy battery I got in May initially showed a capacity of 19.3Ah. Now after light use 4 times it shows only 18.7 Ah. I just got a 20Ah battery from a brand I've had luck with and it measured 21.1Ah and its normal price is $45. I'm using a 12Ah battery from the cheaper brand as a replacement for a lead-acid battery in a small UPS (which can be hard on LiFePO4 batteries) and after a year it still tests out above 12Ah.
I think your cells get out of balance. This happened to me on a 50ah ecoworthy, what I did was charge it, then put it on a power supply set to 14.4v and left it over the weekend, allowing it to top balance the cells. Brought it back up to 48ah. Mine was much worse than yours, it was about 19ah for a 50ah battery after a year of daily use.
Aug 15, 2025 05:43 AM
166 Posts
Joined Mar 2018
PlutomaniaAug 15, 2025 05:43 AM
166 Posts
Kind of expensive for a 256Wh battery. The 15A BMS really limits its use with any that has a motor and inrush. Even a ride on toy can easily pull 20A. I really wish they would put more powerful BMS in these things with BT monitoring.
1
Aug 15, 2025 01:14 PM
1,293 Posts
Joined Nov 2004
HydraridazAug 15, 2025 01:14 PM
1,293 Posts
I bought other brand on Amazon with led display 15Ah for 35
Aug 17, 2025 01:07 AM
147 Posts
Joined Mar 2011
leecewestAug 17, 2025 01:07 AM
147 Posts
Quote from MultiMatrix :
which brand are you talking about?
XZNY is the brand I've had luck with.
Aug 17, 2025 01:11 AM
147 Posts
Joined Mar 2011
leecewestAug 17, 2025 01:11 AM
147 Posts
Quote from AvantNate :
I think your cells get out of balance. This happened to me on a 50ah ecoworthy, what I did was charge it, then put it on a power supply set to 14.4v and left it over the weekend, allowing it to top balance the cells. Brought it back up to 48ah. Mine was much worse than yours, it was about 19ah for a 50ah battery after a year of daily use.
Thanks I'll try it.

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Aug 19, 2025 01:58 AM
453 Posts
Joined Nov 2011
LeakyAneurismAug 19, 2025 01:58 AM
453 Posts
Quote from leecewest :
Anyone have good experience with this brand? The 20Ah Eco-worthy battery I got in May initially showed a capacity of 19.3Ah. Now after light use 4 times it shows only 18.7 Ah. I just got a 20Ah battery from a brand I've had luck with and it measured 21.1Ah and its normal price is $45. I'm using a 12Ah battery from the cheaper brand as a replacement for a lead-acid battery in a small UPS (which can be hard on LiFePO4 batteries) and after a year it still tests out above 12Ah.
I would recommend returning it as defective if it doesn't hold the rated capacity.
Aug 19, 2025 01:58 AM
453 Posts
Joined Nov 2011
LeakyAneurismAug 19, 2025 01:58 AM
453 Posts
Quote from Hydraridaz :
I bought other brand on Amazon with led display 15Ah for 35
What other brand?
Aug 22, 2025 10:14 AM
147 Posts
Joined Mar 2011
leecewestAug 22, 2025 10:14 AM
147 Posts
Quote from AvantNate :
I think your cells get out of balance. This happened to me on a 50ah ecoworthy, what I did was charge it, then put it on a power supply set to 14.4v and left it over the weekend, allowing it to top balance the cells. Brought it back up to 48ah. Mine was much worse than yours, it was about 19ah for a 50ah battery after a year of daily use.
No luck.
Aug 24, 2025 08:19 PM
3,271 Posts
Joined Jul 2013
madmax718Aug 24, 2025 08:19 PM
3,271 Posts
Quote from leecewest :
Anyone have good experience with this brand? The 20Ah Eco-worthy battery I got in May initially showed a capacity of 19.3Ah. Now after light use 4 times it shows only 18.7 Ah. I just got a 20Ah battery from a brand I've had luck with and it measured 21.1Ah and its normal price is $45. I'm using a 12Ah battery from the cheaper brand as a replacement for a lead-acid battery in a small UPS (which can be hard on LiFePO4 batteries) and after a year it still tests out above 12Ah.
What charger are you using with it? LFP actually needs a slightly higher voltage than regular lead acid batteries, so if your using a regular charger this may be the reason why.
Aug 24, 2025 08:25 PM
147 Posts
Joined Mar 2011
leecewestAug 24, 2025 08:25 PM
147 Posts
Its a proper charger with a LiFePO4 setting. My XZNY brand LiFePO4 batteries are all charged with the same charger and all test higher than their rated capacities.
Do you have any Eco-Worthy batteries, and did you test their capacities?

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