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Red_Liz | Staff 10.2K Views
Feb 6, 2025 3:11 PM

ECO-WORTHY 12V 20AH Portable LiFePO4 Battery w/ DC Output $57 + Free Shipping

$57

$80

28% off
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Deal Details
ECO-WORTHY US via Amazon [amazon.com] has ECO-WORTHY 12V 20AH Portable LiFePO4 Battery w/ DC Output on sale for $75.99 - additional 25% off w/ code 25IYA883 at checkout = $56.99. Shipping is free.

Product Features:
  • Compact & Portable w/ Versatile Use: Powers camping gear, small UPS systems, kids' ride-on cars, fish finders, kayaks, and amateur radios, ideal for both outdoor and emergency use.
  • DC Output Interface: Features traditional terminals and a 5.5x2.5mm DC port for standard charging, discharging, and powering USB devices
  • BMS Protection: 20A BMS safeguards against overcharge, deep discharge, overload, overheating, and short circuits for longer battery life and optimal performance.
  • Eco-Friendly Longevity: Lasts 10+ years and 4000+ cycles, outlasting lead-acid batteries (3 years, 300-500 cycles), offering higher efficiency and lower maintenance.
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Deal Details
Community Notes
About the Poster
ECO-WORTHY US via Amazon [amazon.com] has ECO-WORTHY 12V 20AH Portable LiFePO4 Battery w/ DC Output on sale for $75.99 - additional 25% off w/ code 25IYA883 at checkout = $56.99. Shipping is free.

Product Features:
  • Compact & Portable w/ Versatile Use: Powers camping gear, small UPS systems, kids' ride-on cars, fish finders, kayaks, and amateur radios, ideal for both outdoor and emergency use.
  • DC Output Interface: Features traditional terminals and a 5.5x2.5mm DC port for standard charging, discharging, and powering USB devices
  • BMS Protection: 20A BMS safeguards against overcharge, deep discharge, overload, overheating, and short circuits for longer battery life and optimal performance.
  • Eco-Friendly Longevity: Lasts 10+ years and 4000+ cycles, outlasting lead-acid batteries (3 years, 300-500 cycles), offering higher efficiency and lower maintenance.

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9 Comments

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Pro
Feb 6, 2025 3:24 PM
4.9K Comments
Joined Oct 2021
StrongMoney163
Pro
Feb 6, 2025 3:24 PM
4.9K Comments
it is 60 half the time.

update: but there's 5%/10% subscribe and save - you could get it for under 50
Last edited by StrongMoney163 February 6, 2025 at 07:30 AM.
2
Feb 6, 2025 5:12 PM
878 Comments
Joined May 2010
SdFatFeb 6, 2025 5:12 PM
878 Comments
Is the BMS for both charging and discharging? Looks like for discharging only.
Feb 6, 2025 9:25 PM
293 Comments
Joined May 2023
FairWinter2721Feb 6, 2025 9:25 PM
293 Comments
Quote from SdFat View quoted comment :
Is the BMS for both charging and discharging? Looks like for discharging only.
"Featuring traditional terminals and a 5.5*2.5mm DC port, this 12 volt battery allows for standard charging and discharging..."
Feb 7, 2025 7:35 PM
878 Comments
Joined May 2010
SdFatFeb 7, 2025 7:35 PM
878 Comments
Quote from FairWinter2721 View quoted comment :
"Featuring traditional terminals and a 5.5*2.5mm DC port, this 12 volt battery allows for standard charging and discharging..."
What exactly does that mean? Can I use my car's 12V sockets to charge it?
Feb 8, 2025 2:26 AM
13 Comments
Joined Apr 2019
AndrewG28Feb 8, 2025 2:26 AM
13 Comments
Quote from SdFat View quoted comment :
What exactly does that mean? Can I use my car's 12V sockets to charge it?
You'll need a standard 12v charger unit to charge this.
Feb 8, 2025 6:41 PM
878 Comments
Joined May 2010
SdFatFeb 8, 2025 6:41 PM
878 Comments
Quote from AndrewG28 View quoted comment :
You'll need a standard 12v charger unit to charge this.
Sorry, I still don't get it. Would "a standard 12V charger" for lead-acid work for this? Or only the chargers specifically for LiFePO4? The seller really should have made it clear.
Feb 8, 2025 10:44 PM
6.9K Comments
Joined Dec 2004
CaleoFeb 8, 2025 10:44 PM
6.9K Comments
Quote from SdFat View quoted comment :
Sorry, I still don't get it. Would "a standard 12V charger" for lead-acid work for this? Or only the chargers specifically for LiFePO4? The seller really should have made it clear.
Just like it's not the responsibility of car manufacturers to teach people to drive... it's not really the responsibility of battery manufacturers to teach you how to charge LFP batteries, particularly in a sales listing..

Your car's 12V socket isn't a charger, it's a power supply. Technically (assuming the LFP battery's BMS has effective overcharge protection), you can charge an LFP off a 12.6-13.6V power source like a car - but it's not preferred, because you likely won't get a full charge. 12V LFPs prefer to be charged @ ~14.4V.

A lithium-compatible battery charger is what you want to properly charge an LFP battery like this. They have the smarts to 'know when to stop' (bulk/absorption/float charging phases). As an example, here's a fairly reputable one that will charge this from 0 to full in about 4h (and just about every other battery chemistry): https://www.amazon.com/NOCO-GENIU...B07W8KJH44. There are cheaper options available, but I try not to refer people to dangerous 'trash' when it comes to things that can burn a house down.
Last edited by Caleo February 8, 2025 at 02:46 PM.
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Feb 9, 2025 1:18 AM
878 Comments
Joined May 2010
SdFatFeb 9, 2025 1:18 AM
878 Comments
Quote from Caleo View quoted comment :
Just like it's not the responsibility of car manufacturers to teach people to drive... it's not really the responsibility of battery manufacturers to teach you how to charge LFP batteries, particularly in a sales listing..

Your car's 12V socket isn't a charger, it's a power supply. Technically (assuming the LFP battery's BMS has effective overcharge protection), you can charge an LFP off a 12.6-13.6V power source like a car - but it's not preferred, because you likely won't get a full charge. 12V LFPs prefer to be charged @ ~14.4V.

A lithium-compatible battery charger is what you want to properly charge an LFP battery like this. They have the smarts to 'know when to stop' (bulk/absorption/float charging phases). As an example, here's a fairly reputable one that will charge this from 0 to full in about 4h (and just about every other battery chemistry): https://www.amazon.com/NOCO-GENIU...B07W8KJH44 [amazon.com]. There are cheaper options available, but I try not to refer people to dangerous 'trash' when it comes to things that can burn a house down.
The manufacture said it have BMS but did not clarify what it does exactly. Your answer is even more confusing. You say any power supply of 14.4V or above should do; then you say lithium-compatible. All I want to know is if the BMS will limit the charging current when needed and will stop charging when full. Manufacturer's description mentioned over-discharging protection, but nothing about charging.
Feb 9, 2025 1:59 AM
6.9K Comments
Joined Dec 2004
CaleoFeb 9, 2025 1:59 AM
6.9K Comments
Quote from SdFat View quoted comment :
The manufacture said it have BMS but did not clarify what it does exactly. Your answer is even more confusing. You say any power supply of 14.4V or above should do; then you say lithium-compatible. All I want to know is if the BMS will limit the charging current when needed and will stop charging when full. Manufacturer's description mentioned over-discharging protection, but nothing about charging.
It does claim it. First sentence: "[BMS Protection] A 20A BMS safeguards this lifepo4 battery against overcharge..."
But the cheapest batteries don't always pack the best BMS. That's the basis for having an actual charge controller for a battery, it's good for regulation - efficiency, and longevity / safety of the battery system, and for it to run well for a longer (helps with things like cell balance & health of the battery). Fed by either 120V AC, or DC via solar or otherwise. A typical car port will only support up to about 100W, which means you'd be liable to blow fuses just plugging directly in to a 12V cig. port. The car ones usually have a way to limit down to 8A or so for a max of about 100-120W.
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