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frontpageImmortalsolitude posted Yesterday 08:41 PM
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frontpageImmortalsolitude posted Yesterday 08:41 PM

Prime Members: 2-Pk ECO-WORTHY Powermega 48V 314Ah LiFePO4 Battery Energy Storage

+ Free S/H

$3,825

$4,610

17% off
Amazon
31 Comments
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Deal Details
Amazon has for Prime Members: 2-Pack ECO-WORTHY Powermega 48V 314Ah LiFePO4 Battery Energy Storage on sale for $3824.99. Shipping is free.

Thanks Community Member Immortalsolitude for sharing this deal

Note, Usually ships within 7 to 8 days.

Features:
  • ECO-WORTHY 48V 314Ah LiFePO4 battery provides 16.07kWh of energy storage and can be expanded up to 241kWh by connecting 15 units in parallel.
  • Features a 200A smart Battery Management System (BMS) with active cell balancing to improve charging efficiency, maintain capacity, and extend battery life.
  • Uses Grade A battery cells with dual protection from an internal 200A BMS and external two-pole circuit breaker for enhanced safety.
  • Includes built-in aerosol fire suppression to help reduce thermal runaway risks during operation.
  • Equipped with a 7-inch HD touchscreen, WiFi and Bluetooth monitoring, cell-level tracking, RS485 and CAN communication ports, and broad inverter compatibility.
  • Designed for easier installation with integrated wheels and M8 high-current terminals.
  • Suitable for home backup power, off-grid systems, and emergency outage protection.

Editor's Notes

Written by slickdewmaster | Staff

Original Post

Written by Immortalsolitude
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has for Prime Members: 2-Pack ECO-WORTHY Powermega 48V 314Ah LiFePO4 Battery Energy Storage on sale for $3824.99. Shipping is free.

Thanks Community Member Immortalsolitude for sharing this deal

Note, Usually ships within 7 to 8 days.

Features:
  • ECO-WORTHY 48V 314Ah LiFePO4 battery provides 16.07kWh of energy storage and can be expanded up to 241kWh by connecting 15 units in parallel.
  • Features a 200A smart Battery Management System (BMS) with active cell balancing to improve charging efficiency, maintain capacity, and extend battery life.
  • Uses Grade A battery cells with dual protection from an internal 200A BMS and external two-pole circuit breaker for enhanced safety.
  • Includes built-in aerosol fire suppression to help reduce thermal runaway risks during operation.
  • Equipped with a 7-inch HD touchscreen, WiFi and Bluetooth monitoring, cell-level tracking, RS485 and CAN communication ports, and broad inverter compatibility.
  • Designed for easier installation with integrated wheels and M8 high-current terminals.
  • Suitable for home backup power, off-grid systems, and emergency outage protection.

Editor's Notes

Written by slickdewmaster | Staff

Original Post

Written by Immortalsolitude

Community Voting

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31 Comments

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Today 01:00 AM
102 Posts
Joined Jan 2016
mcbrizzleToday 01:00 AM
102 Posts
Aren't these regularly $1650 each?
Today 01:09 AM
45 Posts
Joined Feb 2016
erik.kubatzkeToday 01:09 AM
45 Posts
Quote from mcbrizzle :
Aren't these regularly $1650 each?
Price history says single packs have never been under 2k
Today 01:14 AM
44 Posts
Joined Apr 2014
andrewb6112Today 01:14 AM
44 Posts
Quote from mcbrizzle :
Aren't these regularly $1650 each?
You're probably thinking of the 48v 100AH. these are three of those in one. 15 kWh each. 30 + together
Today 01:16 AM
44 Posts
Joined Apr 2014
andrewb6112Today 01:16 AM
44 Posts
~$125 kWh
Today 03:22 AM
198 Posts
Joined Nov 2017
SaL775720Today 03:22 AM
198 Posts
Quote from andrewb6112 :
~$125 kWh
16.076+16.076 = 32.152 kwh
Today 09:57 AM
4 Posts
Joined Aug 2019
AmusedPocket976Today 09:57 AM
4 Posts
Quote from mcbrizzle :
Aren't these regularly $1650 each?
These are different than what they sell on their eBay store for 1700 ish. These are the mega. Notice the terminal differences and the emergency shutdown. That said I have the eBay version and when connected with the app it lists that version as the mega. They also list active balancing with the mega and maybe better cells. It's the Chinese so who knows unless you do a tear down.
Today 09:59 AM
4 Posts
Joined Aug 2019
AmusedPocket976Today 09:59 AM
4 Posts
Quote from AmusedPocket976 :
These are different than what they sell on their eBay store for 1700 ish. These are the mega. Notice the terminal differences and the emergency shutdown. That said I have the eBay version and when connected with the app it lists that version as the mega. They also list active balancing with the mega and maybe better cells. It's the Chinese so who knows unless you do a tear down. Also notice the terminal differences. These are much better than the cheaper model which uses a proprietary connector between battery and inverter. .
My understanding is that these cost about 800-900 to make so the other amount is their shipping and distribution costs. If you pick it up at their warehouse in nj or ca they will knock off 300 bucks.
Last edited by AmusedPocket976 June 25, 2026 at 03:03 AM.

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Today 10:05 AM
4 Posts
Joined Aug 2019
AmusedPocket976Today 10:05 AM
4 Posts
Quote from AmusedPocket976 :
My understanding is that these cost about 800-900 to make so the other amount is their shipping and distribution costs. If you pick it up at their warehouse in nj or ca they will knock off 300 bucks.
I have dealt with them for over a year. Their customer service is pretty good but after getting more comfortable with solar over the past year will go to a direct china reseller on AliExpress. Ecoworthy products are 25-35% overpriced but great for a beginner
2
Today 10:08 AM
9 Posts
Joined Jan 2017
afloyd2000Today 10:08 AM
9 Posts
I think you may have them confused with the older model. 280ah was a little cheaper, but not by much.
Today 11:48 AM
34 Posts
Joined Aug 2020
OlivePocket436Today 11:48 AM
34 Posts
Need these
Today 12:06 PM
29 Posts
Joined Aug 2013
geever85Today 12:06 PM
29 Posts
This is a very good price for fully assembled. My pair of DIY batteries was roughly 25% less than this and that was direct from the vendor including DDL.
1
Today 01:15 PM
1 Posts
Joined Jun 2026
FeistyPiranha2502Today 01:15 PM
1 Posts
I have these exact batteries from Ali Express. I'm happy other than undersized output cables with proprietary connectors. I have not addressed that yet. I paid ~$800 less than this.
Today 01:19 PM
346 Posts
Joined Nov 2013
Liz2968Today 01:19 PM
346 Posts
Great find!
Today 01:40 PM
407 Posts
Joined Dec 2016
Retro2010Today 01:40 PM
407 Posts
This appears to be a very good deal. Esp considering that one comparable EG4 battery cost nearly as much as two of these.

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Today 01:41 PM
571 Posts
Joined Feb 2010
vnangiaToday 01:41 PM
571 Posts
Quote from mcbrizzle :
Aren't these regularly $1650 each?
The older 280Ah batteries are often around there, and once I did see the newer higher capacity, but still not UL-listed/compliant battery for $1650 in a pack of 4, but this one has the integrated extinguisher and other things required for UL-compliance.

Quote from FeistyPiranha2502 :
I have these exact batteries from Ali Express. I'm happy other than undersized output cables with proprietary connectors. I have not addressed that yet. I paid ~$800 less than this.
The cables I received seem to be correctly sized for 150AMP discharge (AWG1 copper<24" for non-critical, i.e. less than 10 percent Vdc drop), and it's a standard Selphos/Amphenol connector that looks to be used not just on E-W batteries, but also the EG4 batteries. I suppose you have a point that since it's rated for a 200A discharge, you should have got 2/0 copper cable, but I'm not aware of Selphos connectors that can take that size. If you're going to sustain 200A, then maybe the better option is to get a pair of cables and use a busbar since the batteries each have two sets of terminals?

I'm sure there's somebody out on diysolarforum who either has replaced the terminals with studs or has found/built an adapter.
1

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