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DealzRGood4U 35.5K Views
Apr 13, 2026 11:28 AM

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

$94

$198

52% off
+ Free S&Hat AliExpress
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Deal Details
Update: This popular deal is still available

ECOWORTHY-US Store via AliExpress has ECO-WORTHY 12V 100Ah LiFePO4 Battery (1100700100) for $109.98 - $16 off when you apply promo code JJY16 or USAA15 at checkout = ~ $93.98. Shipping is free.
Thanks to community member DealzRGood4U 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 megakimcheelove | Staff
  • About this Deal:
    • Our research indicates that this deal is $106.01 less (53% 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 DealzRGood4U
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular deal is still available

ECOWORTHY-US Store via AliExpress has ECO-WORTHY 12V 100Ah LiFePO4 Battery (1100700100) for $109.98 - $16 off when you apply promo code JJY16 or USAA15 at checkout = ~ $93.98. Shipping is free.
Thanks to community member DealzRGood4U 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 megakimcheelove | Staff
  • About this Deal:
    • Our research indicates that this deal is $106.01 less (53% 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 DealzRGood4U

Community Voting

Deal Score
+97
Good Deal

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76 Comments

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Apr 14, 2026 8:52 PM
269 Comments
Joined Jan 2015
ASFMonApr 14, 2026 8:52 PM
269 Comments

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

Quote from synthesis77 View quoted comment :
don't fit? were the dimensions wrong or you just had buyer's remorse? AliExpress isn't Amazon, you don't return things because you change your mind, you return when they're defective or you got scammed.
I made a costly mistake by measuring my RV battery compartment incorrectly and ended up purchasing two EcoWorthy batteries totaling nearly $500. As soon as I realized the error, I contacted the seller through AliExpress to request a return. That is when I encountered a difficult and frustrating reality that many buyers may not fully understand.

Unlike retailers such as Amazon, Costco, Sam's Club, Target, or Walmart, AliExpress does not operate with a broadly customer-friendly return policy. In many cases, returns are not accepted simply because the buyer made an error, such as ordering the wrong size or changing their mind. This is not always clearly understood upfront, especially for first-time buyers who may assume return policies are consistent across online platforms.

The key takeaway is this: before purchasing from AliExpress, take the time to carefully review both the platform's policies and the individual seller's return terms. Do not assume flexibility. Double-check measurements, specifications, and compatibility before placing an order, because you may not have the option to return the product if something goes wrong.

In short, AliExpress can offer attractive pricing, but it often comes with stricter purchasing conditions. Understanding that trade-off in advance can help you avoid an expensive and frustrating experience like mine.
4
1
Apr 15, 2026 1:30 AM
166 Comments
Joined Aug 2018
imranahApr 15, 2026 1:30 AM
166 Comments
anyone recommend this for using for 3 people John boat and what thrust lb motor is recommended plus a decent charger
Apr 15, 2026 3:41 AM
492 Comments
Joined Jan 2009
tooslickApr 15, 2026 3:41 AM
492 Comments
Quote from greenshell View quoted comment :

Car battery needs to survive tough environments, like extreme hot, cold, and elements.

Lithium batteries are not built to be tough
So, what do they have in a Tesla?
Apr 15, 2026 3:45 AM
492 Comments
Joined Jan 2009
tooslickApr 15, 2026 3:45 AM
492 Comments
Quote from ASFMon View quoted comment :

I made a costly mistake by measuring my RV battery compartment incorrectly and ended up purchasing two EcoWorthy batteries totaling nearly $500. As soon as I realized the error, I contacted the seller through AliExpress to request a return. That is when I encountered a difficult and frustrating reality that many buyers may not fully understand.

Unlike retailers such as Amazon, Costco, Sam's Club, Target, or Walmart, AliExpress does not operate with a broadly customer-friendly return policy. In many cases, returns are not accepted simply because the buyer made an error, such as ordering the wrong size or changing their mind. This is not always clearly understood upfront, especially for first-time buyers who may assume return policies are consistent across online platforms.

The key takeaway is this: before purchasing from AliExpress, take the time to carefully review both the platform's policies and the individual seller's return terms. Do not assume flexibility. Double-check measurements, specifications, and compatibility before placing an order, because you may not have the option to return the product if something goes wrong.

In short, AliExpress can offer attractive pricing, but it often comes with stricter purchasing conditions. Understanding that trade-off in advance can help you avoid an expensive and frustrating experience like mine.
The key point, YOU made a costly mistake. Not the seller.
1
Apr 15, 2026 3:50 AM
492 Comments
Joined Jan 2009
tooslickApr 15, 2026 3:50 AM
492 Comments
Quote from imranah View quoted comment :
anyone recommend this for using for 3 people John boat and what thrust lb motor is recommended plus a decent charger
55 lbs thrust. Get a 12V 20ah charger. Search Amazon for "14.6 Volt LiFePO4 Battery Charger, 12V 20A Lithium Battery Charger". $58, nice charger.
Apr 15, 2026 9:08 AM
782 Comments
Joined Nov 2011
Muddy_BottomsApr 15, 2026 9:08 AM
782 Comments
Quote from Hkxyz View quoted comment :
Need the 150ah to go on sale for $125 again Smilie
Just bought 150ah 126 plus tax. Are you really waiting for one dollar? Same coupon here works on 150ah.
Apr 15, 2026 12:29 PM
411 Comments
Joined Aug 2019
OrangeApparel8487Apr 15, 2026 12:29 PM
411 Comments
Quote from ASFMon View quoted comment :

I made a costly mistake by measuring my RV battery compartment incorrectly and ended up purchasing two EcoWorthy batteries totaling nearly $500. As soon as I realized the error, I contacted the seller through AliExpress to request a return. That is when I encountered a difficult and frustrating reality that many buyers may not fully understand.

Unlike retailers such as Amazon, Costco, Sam's Club, Target, or Walmart, AliExpress does not operate with a broadly customer-friendly return policy. In many cases, returns are not accepted simply because the buyer made an error, such as ordering the wrong size or changing their mind. This is not always clearly understood upfront, especially for first-time buyers who may assume return policies are consistent across online platforms.

The key takeaway is this: before purchasing from AliExpress, take the time to carefully review both the platform's policies and the individual seller's return terms. Do not assume flexibility. Double-check measurements, specifications, and compatibility before placing an order, because you may not have the option to return the product if something goes wrong.

In short, AliExpress can offer attractive pricing, but it often comes with stricter purchasing conditions. Understanding that trade-off in advance can help you avoid an expensive and frustrating experience like mine.
not sure if you figured this part either, but if you planned on just swapping your house batteries with lithium, your RV inverter isn't built to charge lithium batteries; you'd need separate charging and to disconnect the inverter charging from that setup.

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Apr 15, 2026 1:41 PM
875 Comments
Joined Jan 2009
HkxyzApr 15, 2026 1:41 PM
875 Comments
Quote from MuddyBottoms View quoted comment :
Just bought 150ah 126 plus tax. Are you really waiting for one dollar? Same coupon here works on 150ah.
It was $156 when i posted this after coupon, i bought it for $126 too
Apr 15, 2026 2:31 PM
22 Comments
Joined Dec 2012
1idCatApr 15, 2026 2:31 PM
22 Comments
This is really tempting.
I need one for my trolling motor.
Apr 15, 2026 2:52 PM
1K Comments
Joined Jun 2009
greenshellApr 15, 2026 2:52 PM
1K Comments
Quote from tooslick View quoted comment :
So, what do they have in a Tesla?
Tesla battery has built in temperature protection and insulation. It will auto heat itself when it's too cold, and use heat exchange to cool down. It should be able to use car's radiator to let out excessive heat.

I don't think you should compare $100 a raw battery to a $10000-$20000 battery system equipped with cooling/heating/insulation
1
Pro
Apr 15, 2026 4:16 PM
5K Comments
Joined Feb 2006
Tazmania99
Pro
Apr 15, 2026 4:16 PM
5K Comments

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

The profit margin of these batteries is razor thin. You get free shipping for the batteries as well. An 280Ah battery alone can weigh 65lb. Do you know how much it costs the seller shipping the battery back and worth? If you want customer service, pay the premium and shop elsewhere. Aliexpress is not for everyone.

Quote from ASFMon View quoted comment :
I am currently dealing with EcoWorthy through AliExpress, and this has been, without question, the worst customer service experience I have had in over 50 years. What should have been a simple return has turned into an ongoing, frustrating ordeal. The batteries I purchased do not fit, yet after more than a week, I am still being given the runaround with no resolution in sight. The level of inefficiency, lack of accountability, and overall disregard for the customer is frankly unacceptable. Based on this experience, I strongly caution anyone considering a purchase to think twice. I would not consider buying from this seller again under any circumstances.
2
Apr 15, 2026 8:21 PM
134 Comments
Joined Dec 2013
sickkdealsApr 15, 2026 8:21 PM
134 Comments
Is it compatible with Zoeller Aquanot backup sump pump that comes with its own controller?
Pro
Apr 15, 2026 11:44 PM
481 Comments
Joined Jun 2023
JD713
Pro
Apr 15, 2026 11:44 PM
481 Comments
Quote from sickkdeals View quoted comment :
Is it compatible with Zoeller Aquanot backup sump pump that comes with its own controller?
NO, Zoeller battery charger is only charge ACID battery type. It DOES NOT CHARGE LiFePO4 battery.
1
Apr 16, 2026 1:03 AM
269 Comments
Joined Jan 2015
ASFMonApr 16, 2026 1:03 AM
269 Comments
Quote from tooslick View quoted comment :
The key point, YOU made a costly mistake. Not the seller.
That wasn't the main point I was making. The central issue is that AliExpress has a restrictive and often difficult return process, and buyers should understand that upfront before purchasing from the platform or individual sellers. Mistakes happen, and in this case I made one by choosing to order from AliExpress. In hindsight, I would have been better served buying from a more established and consumer-friendly retailer with clearer return protections.

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Apr 16, 2026 1:08 AM
269 Comments
Joined Jan 2015
ASFMonApr 16, 2026 1:08 AM
269 Comments
Quote from OrangeApparel8487 View quoted comment :
not sure if you figured this part either, but if you planned on just swapping your house batteries with lithium, your RV inverter isn't built to charge lithium batteries; you'd need separate charging and to disconnect the inverter charging from that setup.
I understood that most older RV converters may not have a lithium-specific charge profile, but they are generally still capable of charging LiFePO4 batteries. In some cases they may not bring the batteries all the way to 100% state of charge. Many systems still charge them adequately for normal use, especially if the batteries have an internal BMS that manages charging limits.

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