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frontpagegabe23111 posted Nov 04, 2025 02:51 PM
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frontpagegabe23111 posted Nov 04, 2025 02:51 PM

ECO-WORTHY 12V 50Ah Trolling Motor LiFePO4 Lithium Battery w/ BMS

+ Free Shipping

$64

$280

77% off
AliExpress
25 Comments 9,401 Views
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Deal Details
This popular front-page deal is back and now available at a slightly lower price.

ECOWORTHY-US Store via AliExpress has ECO-WORTHY 12V 50Ah Trolling Motor LiFePO4 Lithium Battery w/ BMS for $77.75 - $12 when you apply promo code RE14 at checkout = $65.75 --> Now $64.03. Shipping is free.

Thanks to community member gabe23111 for sharing this deal.

About this item:
  • 10 Year Lifetime
    • ECO-Worthy lithium iron phosphate battery (LiFePO4) can be recharged more than 3000 times in a deep cycle to achieve a longer cycle life. More than 8 times higher than lead-acid batteries (generally only 300-400 cycles can be charged).
  • 100% Protection
    • Built-in BMS(Battery Management System) protects the cell from getting damage like: overcharge, over-discharge, short-circuit. And keep balance between battery cells.
  • Lightweight Design
    • The 50Ah lithium battery has a lightweight design and weighs only 12.7 pounds, much lighter than the lead-acid one. The lithium battery is easy to take outdoors and place in any position that can not be achieved by lead-acid ones.
  • Broad Application
    • The 50AH lithium battery is Suitable for Golf Carts, Power wheels, Trolling motor, RV, Tool trailer, Caravan, Marine, Camper, Electric scooter, Backup power supply, Solar, off-grid, etc.
  • Capacity Expansion
    • The 50AH lithium battery can be used not only in parallel connections but also in series. It involves up to 4 identical batteries for connection in series and unlimited batteries in parallel.

Editor's Notes

Written by persian_mafia | Staff
  • Our research indicates this offer is $19.24 lower (23% savings) than the next best price from a reputable merchant at the time of this post.
  • Please see the original post for additional details & give the forum comments a read for helpful discussion.
  • For expedited customer service, please email [email protected]

Original Post

Written by gabe23111
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
This popular front-page deal is back and now available at a slightly lower price.

ECOWORTHY-US Store via AliExpress has ECO-WORTHY 12V 50Ah Trolling Motor LiFePO4 Lithium Battery w/ BMS for $77.75 - $12 when you apply promo code RE14 at checkout = $65.75 --> Now $64.03. Shipping is free.

Thanks to community member gabe23111 for sharing this deal.

About this item:
  • 10 Year Lifetime
    • ECO-Worthy lithium iron phosphate battery (LiFePO4) can be recharged more than 3000 times in a deep cycle to achieve a longer cycle life. More than 8 times higher than lead-acid batteries (generally only 300-400 cycles can be charged).
  • 100% Protection
    • Built-in BMS(Battery Management System) protects the cell from getting damage like: overcharge, over-discharge, short-circuit. And keep balance between battery cells.
  • Lightweight Design
    • The 50Ah lithium battery has a lightweight design and weighs only 12.7 pounds, much lighter than the lead-acid one. The lithium battery is easy to take outdoors and place in any position that can not be achieved by lead-acid ones.
  • Broad Application
    • The 50AH lithium battery is Suitable for Golf Carts, Power wheels, Trolling motor, RV, Tool trailer, Caravan, Marine, Camper, Electric scooter, Backup power supply, Solar, off-grid, etc.
  • Capacity Expansion
    • The 50AH lithium battery can be used not only in parallel connections but also in series. It involves up to 4 identical batteries for connection in series and unlimited batteries in parallel.

Editor's Notes

Written by persian_mafia | Staff
  • Our research indicates this offer is $19.24 lower (23% savings) than the next best price from a reputable merchant at the time of this post.
  • Please see the original post for additional details & give the forum comments a read for helpful discussion.
  • For expedited customer service, please email [email protected]

Original Post

Written by gabe23111

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24 Comments

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Nov 07, 2025 04:04 AM
381 Posts
Joined Aug 2008
japanesegorillaNov 07, 2025 04:04 AM
381 Posts
Quote from CjTravel716 :
Do we trust aliexpress? I feel like it's fake
These are sold by eco worthy through AliExpress.
Pro
Sr. Deal Editor
Today 03:52 PM
34,784 Posts
Joined Nov 2004
persian_mafiaToday 03:52 PM
Pro
Sr. Deal Editor
34,784 Posts
This offer is back again
Today 04:09 PM
449 Posts
Joined May 2012
BaconSnakeToday 04:09 PM
449 Posts
obviously I need to google this, but if I wanted to replace my 3x Lead Acid Trojan batteries for my golf cart, what kind of charger would I need? Would it need 36v output, or could I simply connect a regular 12v charger to the system and charge, albeit slowly?
Today 04:29 PM
8,334 Posts
Joined May 2009
purificadaToday 04:29 PM
8,334 Posts
i might have to jump on this as a upgrade to my mighty max 12v 35ah.
Today 05:12 PM
76 Posts
Joined Oct 2007
JfallwellToday 05:12 PM
76 Posts
Quote from BaconSnake :
obviously I need to google this, but if I wanted to replace my 3x Lead Acid Trojan batteries for my golf cart, what kind of charger would I need? Would it need 36v output, or could I simply connect a regular 12v charger to the system and charge, albeit slowly?
Different chemestry batteries need* specific chargers for that chemestry - so you would need a lifepo4 charger instead of the one built in for your existing lead-acid/sealed LA/AGM. The nominal 12v or 36v answer depends on how it's wired internally, so you'd have to check the hardware/wiring yourself to be sure if it's series or parallel.

* Note: there is overlap between different battery chemestry so someone who either knows a lot (or doesn't know enough) can find a way to charge batterys using the wrong charger, but it is really not a good long term plan
Today 06:10 PM
28 Posts
Joined Mar 2016
ongthayboiToday 06:10 PM
28 Posts
I have a pond air pump ruuning from UPS but it does not last very long when power outage. Can i replace the small UPS battery with this if i can extense the wires ?
Today 06:34 PM
449 Posts
Joined May 2012
BaconSnakeToday 06:34 PM
449 Posts
Quote from Jfallwell :
Different chemestry batteries need* specific chargers for that chemestry - so you would need a lifepo4 charger instead of the one built in for your existing lead-acid/sealed LA/AGM. The nominal 12v or 36v answer depends on how it's wired internally, so you'd have to check the hardware/wiring yourself to be sure if it's series or parallel.

* Note: there is overlap between different battery chemestry so someone who either knows a lot (or doesn't know enough) can find a way to charge batterys using the wrong charger, but it is really not a good long term plan
Appreciate that, I'm definitely planning on getting a new charger to go along with it.

I've done some google searching this morning and there are a LOT of people saying it's a bad idea to put 3x in series to get 36v as the BMS will really complain.

Lots of recommendations for a chins 36v but that sucker is $600.....

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Today 07:08 PM
262 Posts
Joined Apr 2006
Flfishing13Today 07:08 PM
262 Posts
Quote from enrights :
Does anyone know if these can be used in series to make 24v for trolling motor?
I used 3 of these, but the 150ah, in series for my trolling motor. They're really impressive in that they hold boat on 10 hour trips offshore with minimal battery usage according to the app. I highly recommend but have only had mine less than a year.

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