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Skillful_Pickle | Staff 6.6K Views
Aug 27, 2025 4:08 PM

ECO-WORTHY 12V 100AH 1280Wh LiFePO4 Lithium Battery+ 12V 20A Battery Charger $160 + Free Shipping

$160

$200

20% off
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eco-worthy-us via eBay [ebay.com] has ECO-WORTHY 12V 100AH 1280Wh LiFePO4 Lithium Battery+ 12V 20A Battery Charger on sale for $199.99 - 20% off w/ code HAPPY30TH at checkout = $159.99. Shipping is free.


Features:
  • Low-temperature protection: charging is automatically cut off below -7°C (19.4°F) to prevent cell damage, ideal for winter and cold environments.
  • Integrated 100A Battery Management System (BMS) protects against overcharge, over-discharge, overcurrent, short circuit, and temperature extremes.
  • Intelligently identifies 12V/24V LiFePO4/AGM/Gel/Lead-Acid batteries. Allows manual selection of charging current based on battery capacity for safe. 12V Mode: 5A/10A/15A/20A, 24V Mode: 5A/10A
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Deal Details
Community Notes
About the Poster
eco-worthy-us via eBay [ebay.com] has ECO-WORTHY 12V 100AH 1280Wh LiFePO4 Lithium Battery+ 12V 20A Battery Charger on sale for $199.99 - 20% off w/ code HAPPY30TH at checkout = $159.99. Shipping is free.


Features:
  • Low-temperature protection: charging is automatically cut off below -7°C (19.4°F) to prevent cell damage, ideal for winter and cold environments.
  • Integrated 100A Battery Management System (BMS) protects against overcharge, over-discharge, overcurrent, short circuit, and temperature extremes.
  • Intelligently identifies 12V/24V LiFePO4/AGM/Gel/Lead-Acid batteries. Allows manual selection of charging current based on battery capacity for safe. 12V Mode: 5A/10A/15A/20A, 24V Mode: 5A/10A

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15 Comments

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Aug 27, 2025 4:32 PM
220 Comments
Joined Nov 2015
KudenAug 27, 2025 4:32 PM
220 Comments
can i use it for my car battery?
Aug 27, 2025 5:08 PM
6 Comments
Joined May 2017
teeserAug 27, 2025 5:08 PM
6 Comments
you cant use
Aug 27, 2025 6:18 PM
6.8K Comments
Joined Dec 2004
TroublestylistAug 27, 2025 6:18 PM
6.8K Comments
I have one one these in the 150mah size for my camper. I bought the charger separately.

Charger works great. Haven't had the battery long enough to judge.

I have it hooked up in parallel to a different battery with BT for charge management.
Aug 27, 2025 6:55 PM
2.9K Comments
Joined Jun 2009
g725sAug 27, 2025 6:55 PM
2.9K Comments
What are the dimensions?
Aug 27, 2025 6:57 PM
2.9K Comments
Joined Jun 2009
g725sAug 27, 2025 6:57 PM
2.9K Comments
Quote from Troublestylist View quoted comment :
I have one one these in the 150mah size for my camper. I bought the charger separately.

Charger works great. Haven't had the battery long enough to judge.

I have it hooked up in parallel to a different battery with BT for charge management.
How long to charge to full from empty?

edit: never mind, read too quickly and missed you have different one.
Last edited by g725s August 27, 2025 at 01:00 PM.
Aug 27, 2025 11:27 PM
182 Comments
Joined Sep 2006
DealMongrAug 27, 2025 11:27 PM
182 Comments
Quote from g725s View quoted comment :
How long to charge to full from empty?

edit: never mind, read too quickly and missed you have different one.
Charging @ 20A rate is 20AH per hour so it would charge 100 AH battery in 5 hours.
Aug 27, 2025 11:37 PM
182 Comments
Joined Sep 2006
DealMongrAug 27, 2025 11:37 PM
182 Comments
I've bought 2 pairs of the 150AH battery when price drops to about $170 each. I'm running them in series pairs (~25V). It looks like the 100 amp hour battery does NOT have Bluetooth monitoring, so I think I would hold out for that. My batteries came in at about $0.09/AH. I also have the charger and it works fine, but I mostly charge with solar.

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Aug 28, 2025 12:48 PM
16 Comments
Joined Mar 2017
toughguy19Aug 28, 2025 12:48 PM
16 Comments
Quote from DealMongr View quoted comment :
Quote from g725s :
How long to charge to full from empty?

edit: never mind, read too quickly and missed you have different one.

Charging @ 20A rate is 20AH per hour so it would charge 100 AH battery in 5 hours.
It is probably more like 6-7 hours. The 20A is for an empty battery as they get full, think of it as a balloon getting filled to its max. The charger automatically slows down and by the end is a trickle charger. That is why a Tesla can go from 20-80% in 40-45 minutes but 80-100% can take another 40 minutes to an hour. Its best if you charge to less than 100% if possible, and then store it at less than 70% if you want it to last considerably longer.
Aug 28, 2025 4:52 PM
982 Comments
Joined Jan 2010
timpAug 28, 2025 4:52 PM
982 Comments
Quote from Kuden View quoted comment :
can i use it for my car battery?
Do you mean the charger or the battery? It looks like you should be able to use the charger as it is compatible for lead acid or AGM batteries. I wouldn't use the battery in your car. Although I'm sure it would work, car batteries are made to endure high temperature, vibration, etc. also, car batteries are constantly charged by the alternator, and although lipo4 batteries can remain at 100% soc for longer than other lithium chemistries, it's not made for it like lead acid, and isn't supposed to be constantly fed a charge.
2
Aug 29, 2025 4:18 PM
6.3K Comments
Joined Jul 2017
Luigis3rdcousinAug 29, 2025 4:18 PM
6.3K Comments
Quote from Kuden View quoted comment :
can i use it for my car battery?
As someone previously mentioned, car batteries are constantly being charged at 14+ volts when they run so that's the worst thing you could do to one of these lithium iron phosphate batteries (Lifepo4) You should consider an AGM battery as an upgrade over your typical lead acid battery. There's some decent brands out there for about the same money as a lead acid battery. Just pay attention to the correct battery size, group size they call it. And the CCA or cold cranking amps that your car is designed for and be sure to get at least what it calls for.
Sep 1, 2025 4:38 PM
148 Comments
Joined Nov 2010
mobilebyrdSep 1, 2025 4:38 PM
148 Comments
Quote from timp View quoted comment :
Do you mean the charger or the battery? It looks like you should be able to use the charger as it is compatible for lead acid or AGM batteries. I wouldn't use the battery in your car. Although I'm sure it would work, car batteries are made to endure high temperature, vibration, etc. also, car batteries are constantly charged by the alternator, and although lipo4 batteries can remain at 100% soc for longer than other lithium chemistries, it's not made for it like lead acid, and isn't supposed to be constantly fed a charge.
BMW uses lithium batteries in their non-electric vehicles...
Sep 1, 2025 4:43 PM
1.4K Comments
Joined May 2018
Oil_BurnerSep 1, 2025 4:43 PM
1.4K Comments
Short answer, You cannot and should not attempt to use this battery for a car.
Car starting process demands over 300-400 Amps of current from the battery, which LiFePO4 cannot deliver due to limit set by the BMS and battery capacity. The car charger is not an issue as long the alternator caps the output voltage below 14.6v, which most do. After market alternators are usually questionable. The quality of the BMS is important which should block any charger over 14.6 volts coming in.
1
Sep 1, 2025 4:48 PM
1.4K Comments
Joined May 2018
Oil_BurnerSep 1, 2025 4:48 PM
1.4K Comments
Quote from Luigis3rdcousin View quoted comment :
As someone previously mentioned, car batteries are constantly being charged at 14+ volts when they run so that's the worst thing you could do to one of these lithium iron phosphate batteries (Lifepo4) You should consider an AGM battery as an upgrade over your typical lead acid battery. There's some decent brands out there for about the same money as a lead acid battery. Just pay attention to the correct battery size, group size they call it. And the CCA or cold cranking amps that your car is designed for and be sure to get at least what it calls for.
I would say install the biggest a$$ battery you can afford and your car having space to install it. Stick to AGM. I have H9's on my German diesels.
Sep 1, 2025 8:30 PM
982 Comments
Joined Jan 2010
timpSep 1, 2025 8:30 PM
982 Comments
Quote from mobilebyrd View quoted comment :
BMW uses lithium batteries in their non-electric vehicles...
I didn't know that, interesting. I know several manufacturers put the battery in the trunk or somewhere other than the engine bay. If you have one of those cars, I imagine a lithium battery like this would be much more likely to do well, as long as the BMS can deal with sustained input from the alternator.

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Sep 5, 2025 6:52 PM
25 Comments
Joined Nov 2012
zilla1000Sep 5, 2025 6:52 PM
25 Comments
Brought their 150ah package onsale early August for $210, was a great deal. But when charging, the smart charger continue charge the lifepo4 battery when 100% full, and the battery terminal got hot to touch. Contact their support 8/24, got the run-around, will get back to you response. Ready to return it before 30 days window expired.

When purchase, do consider their support.

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