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frontpageDesertGardener | Staff posted Jul 14, 2025 05:06 PM
frontpageDesertGardener | Staff posted Jul 14, 2025 05:06 PM

ECO-WORTHY 12V/24V 20A Lithium LifePO4 14.6V Smart Battery Charger & Maintainer

+ Free S/H

$46

$90

48% off
eBay
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eco-worthy-us via eBay has ECO-WORTHY 12V/24V 20A Lithium LifePO4 14.6V Smart Battery Charger & Maintainer on sale for $79.99 - $33.60 off w/ coupon code ECOJULY14 at checkout = $46.39. Shipping is free.

Thanks to Staff Member DesertGardener for sharing this deal.

Note, must apply the listed coupon code at checkout for discount to apply

Product Description:
  • 12V 20A LiFePO4 charger and battery maintainer is designed for 12V(12.8V) lithium batteries, with a constant current of 20A and a constant voltage around 14.6V.
  • Constant voltage of 14.6V, with a maximum current of 20A. it can charge a 12V 100Ah LiFePO4 battery to 50% in 2.5 hours, 2 times faster than an ordinary 10A battery charger.
  • Smart charger provides multiple protections to prevent over voltage, over current, short circuit, and overheat. It has full charged auto stop function and 0V charging mode. When the LiFePO4 battery is being protected by BMS, the charger can reactivate the battery and restore the normal voltage.

Editor's Notes

Written by Discombobulated | Staff
  • About this Deal:
    • Offer valid for a limited time only /while supplies last.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About this Store:
    • eco-worthy-us via eBay: 98.9% positive feedback from over 18,900 total feedback | 118K items sold.
    • 30 days returns. Seller pays for return shipping.

Original Post

Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
eco-worthy-us via eBay has ECO-WORTHY 12V/24V 20A Lithium LifePO4 14.6V Smart Battery Charger & Maintainer on sale for $79.99 - $33.60 off w/ coupon code ECOJULY14 at checkout = $46.39. Shipping is free.

Thanks to Staff Member DesertGardener for sharing this deal.

Note, must apply the listed coupon code at checkout for discount to apply

Product Description:
  • 12V 20A LiFePO4 charger and battery maintainer is designed for 12V(12.8V) lithium batteries, with a constant current of 20A and a constant voltage around 14.6V.
  • Constant voltage of 14.6V, with a maximum current of 20A. it can charge a 12V 100Ah LiFePO4 battery to 50% in 2.5 hours, 2 times faster than an ordinary 10A battery charger.
  • Smart charger provides multiple protections to prevent over voltage, over current, short circuit, and overheat. It has full charged auto stop function and 0V charging mode. When the LiFePO4 battery is being protected by BMS, the charger can reactivate the battery and restore the normal voltage.

Editor's Notes

Written by Discombobulated | Staff
  • About this Deal:
    • Offer valid for a limited time only /while supplies last.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About this Store:
    • eco-worthy-us via eBay: 98.9% positive feedback from over 18,900 total feedback | 118K items sold.
    • 30 days returns. Seller pays for return shipping.

Original Post

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Top Comments

caveman017
4380 Posts
753 Reputation
I had not a great experience with this.

My first one arrived with a cracked screen

My replacement wouldn't charge my battery at all

My 3rd has worked fine for the last few months.
WoodSlayR
596 Posts
132 Reputation
I have this exact charger and I clamped it while charging my 150ah EcoWorthy branded LiFePo4 battery near the beginning and again near the end of the charge cycle. I can vouch that it does a constant 22 amps which is 10% more than rated. Not bad! It got pretty warm but never so hot that I couldn't keep my hand on it. 10 out of 10 in my book especially considering I paid 75 dollars for it about a year ago. At this price, I'll probably buy by a second one. Redundancy is vital when building an emergency power setup.

16 Comments

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Jul 14, 2025 06:28 PM
206 Posts
Joined Aug 2011
Jul 14, 2025 06:28 PM
banorwoodJul 14, 2025 06:28 PM
206 Posts
This is a great deal! I was looking at the Victron Blue Smart chargers this morning but for ⅓ the price and all the same features besides Bluetooth, I'll take this!
1
Jul 14, 2025 06:49 PM
4,380 Posts
Joined Feb 2005
Jul 14, 2025 06:49 PM
caveman017Jul 14, 2025 06:49 PM
4,380 Posts

Our community has rated this post as helpful. If you agree, why not thank caveman017

I had not a great experience with this.

My first one arrived with a cracked screen

My replacement wouldn't charge my battery at all

My 3rd has worked fine for the last few months.
3
2
Jul 14, 2025 06:57 PM
4,016 Posts
Joined May 2006
Jul 14, 2025 06:57 PM
ArcticatJul 14, 2025 06:57 PM
4,016 Posts
I wonder how these compare to other brands when charging the standard or AGM's?
Jul 14, 2025 07:07 PM
789 Posts
Joined Mar 2005
Jul 14, 2025 07:07 PM
bawla47Jul 14, 2025 07:07 PM
789 Posts
i just got this and own the victron 20amp too. the charger itself seems incredibly cheap, barely any weight to it, but it works. i don't know how it doesn't need any large heatsink like the victron or even there non smart 20 amp(the all black one i owned tool
1
Pro
Jul 14, 2025 09:20 PM
596 Posts
Joined Jul 2019
Jul 14, 2025 09:20 PM
WoodSlayR
Pro
Jul 14, 2025 09:20 PM
596 Posts

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

Quote from bawla47 :
i just got this and own the victron 20amp too. the charger itself seems incredibly cheap, barely any weight to it, but it works. i don't know how it doesn't need any large heatsink like the victron or even there non smart 20 amp(the all black one i owned tool
I have this exact charger and I clamped it while charging my 150ah EcoWorthy branded LiFePo4 battery near the beginning and again near the end of the charge cycle. I can vouch that it does a constant 22 amps which is 10% more than rated. Not bad! It got pretty warm but never so hot that I couldn't keep my hand on it. 10 out of 10 in my book especially considering I paid 75 dollars for it about a year ago. At this price, I'll probably buy by a second one. Redundancy is vital when building an emergency power setup.
3
Jul 15, 2025 01:01 AM
126 Posts
Joined Nov 2011
Jul 15, 2025 01:01 AM
IMNXJul 15, 2025 01:01 AM
126 Posts
Would this be good for a motorcycle when not riding?
Jul 15, 2025 02:55 AM
89 Posts
Joined Dec 2019
Jul 15, 2025 02:55 AM
HonestBanana2312Jul 15, 2025 02:55 AM
89 Posts
Quote from IMNX :
Would this be good for a motorcycle when not riding?
Way overkill and not the most convenient, but it could work if you make sure the terminals are the right size to bolt onto the battery. If you have a modern bike with an SAE port/connector somewhere it would probably be more convenient to just get a charger/tender an SAE port so you can easily plug/unplug

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Jul 15, 2025 01:44 PM
4,875 Posts
Joined Feb 2006
Jul 15, 2025 01:44 PM
Azrael_the_CatJul 15, 2025 01:44 PM
4,875 Posts
-- deleted --
1
Jul 15, 2025 01:54 PM
259 Posts
Joined Oct 2008
Jul 15, 2025 01:54 PM
ck90211Jul 15, 2025 01:54 PM
259 Posts
Thank you OP in for one. Hope I don't have to go through a few bad ones before getting a working one.
1
Jul 15, 2025 02:31 PM
789 Posts
Joined Mar 2005
Jul 15, 2025 02:31 PM
bawla47Jul 15, 2025 02:31 PM
789 Posts
Quote from Azrael_the_Cat :
depends how efficient it is. if it's well designed, and optimized for its peak power it can easily be 90-95% efficient. The waste head of 2-5W at that efficiency doesn't need much heat sinking. Even if it was 80% efficient 10w wouldn't be too bad either.

I understand efficiency, how well it can convert the power. But if its a 20 amp charger, it's still pulling 240 watts at the minimum if it were 100% efficient, though it's definitely more like 10-15% above that.
Jul 15, 2025 04:44 PM
126 Posts
Joined Nov 2011
Jul 15, 2025 04:44 PM
IMNXJul 15, 2025 04:44 PM
126 Posts
Quote from HonestBanana2312 :
Way overkill and not the most convenient, but it could work if you make sure the terminals are the right size to bolt onto the battery. If you have a modern bike with an SAE port/connector somewhere it would probably be more convenient to just get a charger/tender an SAE port so you can easily plug/unplug
I have a 03 Kawasaki Meanstreak. I just got the bike, but i was recommended to get one of this while I learn and not using it for a while or for winter when not using the bike. So what would you recommend?
Jul 15, 2025 08:09 PM
65 Posts
Joined May 2015
Jul 15, 2025 08:09 PM
snowranger69Jul 15, 2025 08:09 PM
65 Posts
Quote from IMNX :
I have a 03 Kawasaki Meanstreak. I just got the bike, but i was recommended to get one of this while I learn and not using it for a while or for winter when not using the bike. So what would you recommend?

Just get a cheap 12 volt trickle charger or a solar trickle charger if near a window
1
Jul 15, 2025 09:10 PM
166 Posts
Joined Jan 2021
Jul 15, 2025 09:10 PM
BeautifulLake409Jul 15, 2025 09:10 PM
166 Posts
Quote from IMNX :
Would this be good for a motorcycle when not riding?
I used a Battery Minder on my bike and zt.
1
Jul 15, 2025 10:29 PM
120 Posts
Joined Jan 2014
Jul 15, 2025 10:29 PM
DelawaresaceJul 15, 2025 10:29 PM
120 Posts
I built myself a power station with two 150 AH batteries and a cheap AliExpress 10 amp battery charger that I don't trust. This works out perfectly to swap out that battery charger. In for one.

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Jul 16, 2025 04:24 AM
868 Posts
Joined Feb 2017
Jul 16, 2025 04:24 AM
theshopper2022Jul 16, 2025 04:24 AM
868 Posts
It is always better to charge batteries at a slower rate, if you want them to not heat up and last longer.
1

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