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popularRed_Liz | Staff posted Aug 12, 2025 06:45 PM
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popularRed_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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Community Notes
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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Today 07:10 AM
140 Posts
Joined Mar 2011
leecewestToday 07:10 AM
140 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.
Today 08:43 AM
546 Posts
Joined Feb 2020
MultiMatrixToday 08:43 AM
546 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.
which brand are you talking about?
Today 04:41 PM
278 Posts
Joined Sep 2012
AvantNateToday 04:41 PM
278 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.

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