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forum thread Posted by Red_Liz | Staff • May 6, 2025
forum thread Posted by Red_Liz | Staff • May 6, 2025

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 Battery w/ 4000+ Cycles + Built-in BMS for $62.99 - 25% off w/ code 25KY6ALQ 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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Deal Details
Community Notes
About the Poster
ECO-WORTHY US via Amazon [amazon.com] has ECO-WORTHY 12V 20Ah LiFePO4 Battery w/ 4000+ Cycles + Built-in BMS for $62.99 - 25% off w/ code 25KY6ALQ 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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13 Comments

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May 6, 2025
4,079 Posts
Joined Aug 2012
May 6, 2025
Hyrax
May 6, 2025
4,079 Posts
Does this replace a car battery?
1
4
May 6, 2025
1,298 Posts
Joined Dec 2005
May 6, 2025
alphawave
May 6, 2025
1,298 Posts

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

Quote from Hyrax :
Does this replace a car battery?
Are you driving this? https://m.media-amazon.com/images...L1500_.jpg
1
9
May 7, 2025
1,982 Posts
Joined May 2011
May 7, 2025
jugernot
May 7, 2025
1,982 Posts

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

Quote from Hyrax :
Does this replace a car battery?

Let us know how it turns out.
1
1
May 7, 2025
534 Posts
Joined Jan 2022

This comment has been rated as unhelpful by Slickdeals users.

May 8, 2025
27 Posts
Joined Jan 2021
May 8, 2025
VioletCrib194
May 8, 2025
27 Posts
While everyone laughs at him for asking about car battery. I actually use a very similar style battery in my car and it works perfectly fine. But it's a mini battery kit. Probably not the best for a regular person
3
May 8, 2025
61 Posts
Joined Dec 2011
May 8, 2025
vradi
May 8, 2025
61 Posts
I know starting a car might be asking too much from this battery but does any one knows if it would be able to start a riding lawn mower.
1
May 8, 2025
395 Posts
Joined Nov 2013
May 8, 2025
salincer
May 8, 2025
395 Posts
I don't know how these batteries don't have an internal temperature sensor. These should not be charged in freezing temperatures.

This is a bummer as I just bought a 50aH from this same company. I made an assumption that all LiFePo4 cells have this at minimum from the BMS.
1

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May 8, 2025
21 Posts
Joined Dec 2018
May 8, 2025
WiseOstrich527
May 8, 2025
21 Posts
Would this work to replace a small generator starter battery? The starter battery kn my predator 3500 went out a while ago
1
May 8, 2025
70 Posts
Joined Sep 2016
May 8, 2025
OrionAntares
May 8, 2025
70 Posts
Quote from WiseOstrich527 :
Would this work to replace a small generator starter battery? The starter battery kn my predator 3500 went out a while ago
Probably, as long as it can fit in the tray where it needs to sit and you don't need to use it in freezing weather it'll probably work.
Otherwise you might be better getting that 12V AGM battery that HB offers and just keeping it connected to a battery tender when you're not using the generator.
1
May 8, 2025
284 Posts
Joined Jan 2021
May 8, 2025
CyanRaccoon6450
May 8, 2025
284 Posts
Quote from vradi :
I know starting a car might be asking too much from this battery but does any one knows if it would be able to start a riding lawn mower.

Probably not, it only has a 30 amp BMS. From a quick Google, many mowers require 100a or so.. You could try looking up your mowers starting amps, but I'd guess it will trip the BMS.
May 8, 2025
1,222 Posts
Joined Dec 2007
May 8, 2025
tran1981
May 8, 2025
1,222 Posts
Quote from CyanRaccoon6450 :
Probably not, it only has a 30 amp BMS. From a quick Google, many mowers require 100a or so.. You could try looking up your mowers starting amps, but I'd guess it will trip the BMS.
Where do you see it has 30A BMS? Did they upgrade it as it is only listed 20A on the page? 30A BMS would work to start a small generator.
1
May 9, 2025
1,781 Posts
Joined May 2004
May 9, 2025
ECarlson
May 9, 2025
1,781 Posts
Quote from Hyrax :
Does this replace a car battery?
No. Not a high cranking amp battery. There are specific high cranking amp batteries for starting things like riding mowers, and larger ones for cars. They are more expensive than these. I bought this LifePo4 riding mower starter battery and it is only 10AH, but 700CCA: https://www.amazon.com/dp/B0CNT6XCG4 . It cranks the mower hard (good). The battery in this post is limited to 20 amps, not 700 amps.
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Red_Liz
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