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frontpageRed_Liz | Staff posted Sep 8, 2025 4:58 PM

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

$153

$200

23% off
+ Free Shippingat eBay
22 Comments
30.5K Views
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Deal Details
eco-worthy-us via eBay has ECO-WORTHY 12V 100AH 1280Wh LiFePO4 Lithium Battery + 12V 20A Battery Charger on sale for $179.99 - 15% w/ coupon code FRESHPICKS at checkout = $152.99. Shipping is free.

Thanks to staff member Red_Liz for sharing this deal.

Features:
  • 4000+ Cycles, 10-Year Lifespan
  • 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
  • Dimensions: 10.23"L × 6.61"W × 8.23"L, 22.93 lbs

Editor's Notes

Written by qwikwit | Staff
  • About this Deal:
    • This is $7 less than this previous Popular Deal.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.

Original Post

Written by Red_Liz | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
eco-worthy-us via eBay has ECO-WORTHY 12V 100AH 1280Wh LiFePO4 Lithium Battery + 12V 20A Battery Charger on sale for $179.99 - 15% w/ coupon code FRESHPICKS at checkout = $152.99. Shipping is free.

Thanks to staff member Red_Liz for sharing this deal.

Features:
  • 4000+ Cycles, 10-Year Lifespan
  • 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
  • Dimensions: 10.23"L × 6.61"W × 8.23"L, 22.93 lbs

Editor's Notes

Written by qwikwit | Staff
  • About this Deal:
    • This is $7 less than this previous Popular Deal.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.

Original Post

Written by Red_Liz | Staff

Community Voting

Deal Score
+27
Good Deal
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Top Comments

slackerjj
72Comments
26Reputation
LiFEPO4 work better as "deep cycle" than any Lead Acid ever did. I use this exact battery combined with https://www.amazon.com/dp/B09YT38VC8 that I embedded into a battery carrier. Gives capacity and real time current draw, etc. Great for seeing speed vs power draw. I used this for driving a kaboat and get a few hours of 3-4 mph cruising.
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22 Comments

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Sep 9, 2025 1:37 PM
104 Comments
Joined Nov 2019
EvilNickSep 9, 2025 1:37 PM
104 Comments
would this work for a kayak motor. i dont see deep cycle on there but im not sure if that matters with these
Sep 9, 2025 2:44 PM
400 Comments
Joined Sep 2013

This comment has been rated as unhelpful by Slickdeals users.

Sep 9, 2025 3:21 PM
72 Comments
Joined Oct 2015
slackerjjSep 9, 2025 3:21 PM
72 Comments

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

Quote from EvilNick :
would this work for a kayak motor. i dont see deep cycle on there but im not sure if that matters with these
LiFEPO4 work better as "deep cycle" than any Lead Acid ever did. I use this exact battery combined with https://www.amazon.com/dp/B09YT38VC8 that I embedded into a battery carrier. Gives capacity and real time current draw, etc. Great for seeing speed vs power draw. I used this for driving a kaboat and get a few hours of 3-4 mph cruising.
1
Sep 9, 2025 5:00 PM
9 Comments
Joined Aug 2025
ThekingofpleasureSep 9, 2025 5:00 PM
9 Comments
Can you charge a phone with this? What about a laptop?
2
Sep 9, 2025 5:06 PM
97 Comments
Joined Dec 2006
RikJamezSep 9, 2025 5:06 PM
97 Comments
Hi , is it possible to use this , with a super cap ( 500 Farad ) , in a car , instead of a lead acid battery ? And how ?
Thanx !
. ®️ .
2
Sep 9, 2025 7:17 PM
22 Comments
Joined Feb 2016
cwiggsSep 9, 2025 7:17 PM
22 Comments
Quote from Thekingofpleasure :
Can you charge a phone with this? What about a laptop?
This battery can be paired with other products to charge a phone or laptop without issue. Simply option would be to buy a cigarette outlet adapter, and then get a PD car charger with USB-C, then you can easly hookup both of those to the battery and charge the phone or laptop.
Sep 9, 2025 7:17 PM
22 Comments
Joined Feb 2016
cwiggsSep 9, 2025 7:17 PM
22 Comments
Quote from RikJamez :
Hi , is it possible to use this , with a super cap ( 500 Farad ) , in a car , instead of a lead acid battery ? And how ?
Thanx !
. ®️ .
These batteries usually don't have the CCA (cold cranking amps) to start a car.

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Sep 9, 2025 7:18 PM
22 Comments
Joined Feb 2016
cwiggsSep 9, 2025 7:18 PM
22 Comments
I bought this same battery without the charger for a bit less a while ago (slickdeals link: https://slickdeals.net/f/18563314-eco-worthy-12v-100ah-lifepo4-lithium-battery-no-bluetooth?src=SDSearchv3&attrsrc=Thread%3AExpired%3ATrue%7CSearch%3AType%3Anormal%7CSearch%3ASort%3Arelevance%7CSearch%3AHideExpired%3Afalse&peid=3fbfe51a-5f01-4ecb-94a3-c96a75f7870f)

Battery works great, keep in mind it does not have any bluetooth so you'll want another way to monitor the SOC (state of charge).
Sep 9, 2025 8:14 PM
2.5K Comments
Joined Dec 2010
coachclassSep 9, 2025 8:14 PM
2.5K Comments
Quote from cwiggs :
I bought this same battery without the charger for a bit less a while ago (slickdeals link: https://slickdeals.net/f/18563314-eco-worthy-12v-100ah-lifepo4-lithium-battery-no-bluetooth?src=SDSearchv3&attrsrc=Thread%3AExpired%3ATrue%7CSearch%3AType%3Anormal%7CSearch%3ASort%3Arelevance%7CSearch%3AHideExpired%3Afalse&peid=3fbfe51a-5f01-4ecb-94a3-c96a75f7870f)

Battery works great, keep in mind it does not have any bluetooth so you'll want another way to monitor the SOC (state of charge).
For a larger capacity like a 100AH one in this deal, I wonder if the bluetooth feature might be more important. I read the bluetooth app gives you the difference in volts in the individual cells. If you're the type who wants more info about what's going on with the battery - like the state of charge, cell balance, or charge/discharge rates, the built-in bluetooth seems like a pretty important feature. I don't think you can get that info otherwise.
Sep 9, 2025 9:29 PM
288 Comments
Joined Jun 2007
nosaholicSep 9, 2025 9:29 PM
288 Comments
Quote from cwiggs :
These batteries usually don't have the CCA (cold cranking amps) to start a car.
I don't think they're asking to start a car, I think they're asking as a secondary battery in a vehicle, like for a car audio system. I was about to ask the same thing.

Say like you have a regular car battery in the engine bay and one of these in the back next to the amp rack. Much safer (and you don't have to vent it or mount it under the vehicle) than a regular battery (and Optimas are like $250 now.) I've heard that some people are forgoing a capacitor altogether and just daisy-chaining these with a regular car battery up front for the vehicle to run off of but I've been out of the game for so long I don't know how all that charges (with the alternator or do they isolate it and charge these separately.) I believe that is what the actual question is going to lead to.
Sep 10, 2025 12:05 AM
308 Comments
Joined Nov 2012
ClovisJSep 10, 2025 12:05 AM
308 Comments
Of note: Max current Discharge is 100A. Make sure this fits your intended use. You can run them in groups for more current.
Sep 10, 2025 11:33 AM
819 Comments
Joined Jan 2008
FeloniusMonkeySep 10, 2025 11:33 AM
819 Comments
Anyone know if this is a good choice as a battery backup for a 1/2 HP sump pump?
Sep 10, 2025 1:53 PM
6.8K Comments
Joined Dec 2004
TroublestylistSep 10, 2025 1:53 PM
6.8K Comments
Quote from coachclass :
For a larger capacity like a 100AH one in this deal, I wonder if the bluetooth feature might be more important. I read the bluetooth app gives you the difference in volts in the individual cells. If you're the type who wants more info about what's going on with the battery - like the state of charge, cell balance, or charge/discharge rates, the built-in bluetooth seems like a pretty important feature. I don't think you can get that info otherwise.
Yes agreed. I have the 150ah version with BT. It's not much bigger and I would recommend it if you can fit it.The BT is a very useful feature. It does show the individual cell voltage, the SOC, and the estimated run time based on current charge/discharge rates. I use it as my main camper battery, with another (different brand without BT) mounted closer to my solar input. So I can monitor the voltage at both ends of the system and watch the two batteries level each other as they are used or charged
Sep 10, 2025 1:54 PM
6.8K Comments
Joined Dec 2004
TroublestylistSep 10, 2025 1:54 PM
6.8K Comments
The charger also works great. 20a is a decent charge rate for these batteries

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Sep 10, 2025 2:16 PM
6.8K Comments
Joined Dec 2004
TroublestylistSep 10, 2025 2:16 PM
6.8K Comments
Quote from cwiggs :
These batteries usually don't have the CCA (cold cranking amps) to start a car.
That's what the capacitor is for.Yes, this would be a great way to start ANY car, with any battery. Attach the capacitor at the starter and the current demands off the battery will be greatly reduced.I don't know the math of resistance and sizing to make this work, but it's certainly doable.
2

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