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shivster1796 18.9K Views
Jun 4, 2026 12:44 PM

ECO-WORTHY 12V 100Ah LiFePO4 Lithium Iron Phosphate Battery

$84

$169

50% off
+ Free S&Hat AliExpress
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Deal Details
ECOWORTHY-US Store via AliExpress has ECO-WORTHY 12V 100Ah LiFePO4 Battery (1100700100) for $102.07 - $18 off when you apply promo code 18USDEALSS at checkout = $84.07. Shipping is free.

Thanks to community member shivster1796 for sharing this deal.
  • Note: Price may fluctuate slightly with currency exchange rates. You must be signed into your AliExpress account and have your address added to add items to your cart and place an order. You may have to manually type in the promo code to apply it at checkout. This item ships from a USA warehouse. For expedited customer service, please email [email protected].
Features:
  • 10-year life & 4000+ cycles
  • High Charging Speed
  • Lightweight & Easy Installation
  • Capacity Expansion
  • Built in Battery management System (BMS)

Editor's Notes

Written by RevOne | Staff
  • About this Deal:
    • This offer is $9.81 less than the previous Frontpage Deal from April.
    • Our research indicates that this deal is $115.92 less (58% savings) than the next best available price from a reputable merchant with prices starting at $199.99 at the time of this posting.
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • About this Product:
    • 3-Year manufacturer Warranty

Original Post

Written by shivster1796
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
ECOWORTHY-US Store via AliExpress has ECO-WORTHY 12V 100Ah LiFePO4 Battery (1100700100) for $102.07 - $18 off when you apply promo code 18USDEALSS at checkout = $84.07. Shipping is free.

Thanks to community member shivster1796 for sharing this deal.
  • Note: Price may fluctuate slightly with currency exchange rates. You must be signed into your AliExpress account and have your address added to add items to your cart and place an order. You may have to manually type in the promo code to apply it at checkout. This item ships from a USA warehouse. For expedited customer service, please email [email protected].
Features:
  • 10-year life & 4000+ cycles
  • High Charging Speed
  • Lightweight & Easy Installation
  • Capacity Expansion
  • Built in Battery management System (BMS)

Editor's Notes

Written by RevOne | Staff
  • About this Deal:
    • This offer is $9.81 less than the previous Frontpage Deal from April.
    • Our research indicates that this deal is $115.92 less (58% savings) than the next best available price from a reputable merchant with prices starting at $199.99 at the time of this posting.
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • About this Product:
    • 3-Year manufacturer Warranty

Original Post

Written by shivster1796

Community Voting

Deal Score
+46
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Top Comments

Community Reviews

This ECO-WORTHY 12V 100Ah LiFePO4 battery is drawing attention as a lightweight, low-cost upgrade for RV, trailer, solar, and backup power setups. The Bluetooth app is reported to work well, and the battery has been used successfully for mini PCs, home assistant, camping, and even as an expansion pack or UPS battery in the right setup. It is also praised for being much lighter than a comparable lead-acid battery and for supporting high discharge use such as trolling motors. The main cautions are that pricing has often landed above the advertised deal after tax, it has no handles, and charging or wiring needs to match the voltage and equipment limits of the system.

Common Questions (5)

  • The advertised $84.30 price often does not hold at checkout; reported totals include about $90 to $102.96 after coupon and tax. The deal can still land near $84.07 when the promo code applies cleanly, but the final amount varies with tax and checkout pricing.

  • It is meant for car/RV-style use, not as a native power-station battery. It can be adapted through a power station's solar input or used in a UPS build, but the voltage must match the unit's input limits and the UPS charging/output design must be able to handle lithium safely.

  • A 12V battery can be fed into some power stations through the solar input, but many units need higher voltage and their 12V input is often limited to about 10A, which is slow. Matching the voltage to the device's official expansion battery or using a proper charge controller is the safer approach, and some users run it directly from portable solar panels.

  • Yes, it is used for RVs, truck campers, trolling motors, mini PCs, and similar 12V loads. It supports up to 100A continuous, which covers typical trolling-motor draws, and users report weekend camping and 24/7 mini-PC use with solar support.

  • The most common complaint is the lack of handles, which makes carrying it less convenient. Another practical caveat is that some setups need a matching charger, proper wiring, or a compatible RV/UPS system to use lithium correctly.

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53 Comments

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Jun 19, 2026 5:26 AM
972 Comments
Joined Oct 2011
Wpeed001Jun 19, 2026 5:26 AM
972 Comments
Just wanted to drop a warning for anyone running Eco-Worthy batteries in a series or parallel bank (RV, solar, marine, etc.). Their 3-year warranty is a forced sales pitch if you run a multi-battery system.
I bought a pair of Eco-Worthy batteries less than a year ago to run in series. One recently suffered a confirmed manufacturing defect. Eco-Worthy acknowledged the defect and confirmed it was well within the warranty window, but refused to send a free, matching replacement.
As we all know, putting a mismatched battery into a series bank compromises the whole system. Eco-Worthy explicitly admitted this in writing, stating that a matched production batch is a necessity for consistent performance.
Instead of honoring the warranty by providing an exact match or refurbished unit at no cost, they weaponized this technical necessity into a sales pitch. They offered a "goodwill BOGO deal" on their latest, more expensive model: they would give me a matched pair, but only if I paid out of pocket for one of them.
To get a "free" warranty replacement for a defective product under a year old, I was forced to buy a second battery I didn't need, at a higher price than my original purchase. They essentially held my broken system hostage until I agreed to buy more product.
I bought it under protest just to get my rig back online, but consider this a heads-up. If you run a multi-battery bank, Eco-Worthy's warranty policy is designed to extract more cash from you when their product fails.
1
4
Jun 19, 2026 8:07 PM
249 Comments
Joined Oct 2020
TibetanGuruJun 19, 2026 8:07 PM
249 Comments
Quote from jasonw2714 View quoted comment :
Price and coupon is still good for me.Now that I have extra batteries, gonna experiment with making a nice robust UPS from an older 1500va Cyberpower unit that has dead batteries.
Couple of things. This is actually a dangerous proposition. Because even though your new battery has much higher runtime capacity, the charging system on the UPS is only designed to charge a battery of the much smaller capacity that shipped with the unit. And the component ratings and the design of the output circuits are the same they're designed to only run for a few minutes with the small batteries that came with the unit and if you power the thing up and run it for 345 hours, or whatever, from the big battery the unit can fail, sometimes spectacularly. I'm speaking from experience :-)
1
Jun 19, 2026 11:01 PM
323 Comments
Joined Nov 2008
RussMooreJun 19, 2026 11:01 PM
323 Comments
It says for Trolling Motor RV. I am assuming I can use just for auxiliary power on my boat. Audio, VHF, Chart Plotter, lights, etc. Any issues with that?
Jun 20, 2026 2:45 AM
109 Comments
Joined Aug 2008
rellogJun 20, 2026 2:45 AM
109 Comments
Can anyone advise on whether this would be a good option for use in a rv?
Jun 20, 2026 3:11 AM
182 Comments
Joined Mar 2018
Espresso_Yes_NowJun 20, 2026 3:11 AM
182 Comments
Quote from rellog View quoted comment :
Can anyone advise on whether this would be a good option for use in a rv?
Yes, buy two, wire them in parallel
Your biggest issue is how old and capable is your current systems battery charger that likely is charging your marine cycle batteries. To charge these, you will need to confirm your "RV Load Center" is capable of charging lithium batteries. If it is old, it probably can not, and you will need to upgrade it/replace it. But if the trailer is newer, there is a chance it is compatible. You will get 2-3x the power out of these batteries vs your standard lead acid marine battery. Add a couple of 100W panels and a small solar charge controller, and you will never need to plug in again or run a generator. I have this battery, I also have LiTime, I like the ecoworthy.
Jun 20, 2026 11:27 AM
84 Comments
Joined Oct 2020
slick88zJun 20, 2026 11:27 AM
84 Comments
Thanks.
Last edited by slick88z June 20, 2026 at 05:32 AM.
Jun 20, 2026 1:45 PM
106 Comments
Joined Oct 2011
wakebrdr549Jun 20, 2026 1:45 PM
106 Comments
I see $147 before coupon code. it's a big difference than $102. I guess the deal is dead?
Last edited by wakebrdr549 June 20, 2026 at 07:49 AM.

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Jun 20, 2026 6:45 PM
126 Comments
Joined Mar 2018
jasonw2714Jun 20, 2026 6:45 PM
126 Comments
Quote from TibetanGuru View quoted comment :
Couple of things. This is actually a dangerous proposition. Because even though your new battery has much higher runtime capacity, the charging system on the UPS is only designed to charge a battery of the much smaller capacity that shipped with the unit. And the component ratings and the design of the output circuits are the same they're designed to only run for a few minutes with the small batteries that came with the unit and if you power the thing up and run it for 345 hours, or whatever, from the big battery the unit can fail, sometimes spectacularly. I'm speaking from experience :-)
It's a UPS, not an inverter, it's not intended to be run continuously off the battery. The biggest problem I see isn't the battery, it's the wire sizing in a UPS, so a person doing this should be basing their load on the smaller gauge wire inside the UPS and using it as intended - a UPS.
A 100ah 24v with a 100amp bms has plenty of charge/discharge current to supply the typical 1200w available from a 1500va UPS. Capacity of the battery doesn't matter, the UPS is looking at voltage. It will factor in a 7ah default to determine runtime, but that can be ignored. Battery degradation is too common in SLA, so the UPS isn't going to shut down based on a timer.
The UPS won't charge to the 100% for LiFePO4 (SLA on a UPS will get up to approx 25.5v to 26v - 100% on Li would be 27v resting 28.4v full), so some routine maintenance of cycling the battery will be required for battery longevity.
I have seen builds with people gutting and rewiring old UPSs, plus adding new charger controllers to build power stations, so it can be done properly, as long as you gauge your wiring correctly and you know the limitations of the equipment.

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