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)
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.
AI-generated summary based on comments from the community. Updated ago
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53 Comments
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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.
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.
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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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