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expiredRed_Liz | Staff posted Apr 21, 2026 12:28 PM
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expiredRed_Liz | Staff posted Apr 21, 2026 12:28 PM

ECO-WORTHY SL3500 5120Wh 3500W Stackable Power Station

+ Free S&H

$1,160

$1,500

22% off
eBay
16 Comments 8,044 Views
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Deal Details
eco-worthy-us via eBay has ECO-WORTHY SL3500 5120Wh 3500W Stackable Power Station on sale for $1,159.99. Shipping is free.

Thanks to Staff Member Red_Liz for sharing this deal.

Details:
  • Whole-Home Backup: 3.5 kW output (expandable to 7 kW) with UPS switching under 20 ms; keeps refrigerators, Wi-Fi, medical devices, and lights running during outages
  • Scalable Capacity: Starts at 5.12 kWh, expandable up to 15.36 kWh for growing energy needs
  • Off-Grid Ready: Quiet, zero-emission LiFePOâ‚„ power ideal for RVs, camping, tools, and outdoor events
  • Durable & Safe: Rugged metal-cased LiFePOâ‚„ battery with BMS; 3,000+ cycles (8–10 years daily use); operates down to –4°F
  • Smart & Portable: App monitoring, stackable modules, wheeled trolley with telescopic handle for easy transport and management
  • Package Includes: 1× 3500W inverter/controller, 1× base stand, and 2 or 4× 48V 50Ah battery modules
  • Note: PV/AC charging cables not included; contact [email protected] for base/layer bracket purchases or issues; wait for all packages before assembly

Editor's Notes

Written by SaltyOne | Staff
  • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
  • At the time of this posting, our research indicates that this is $140 lower than the next best comparable online prices starting from $1,129.99.
Please see the original post for additional details & refer to the comments below for discussion.

Original Post

Written by Red_Liz | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
eco-worthy-us via eBay has ECO-WORTHY SL3500 5120Wh 3500W Stackable Power Station on sale for $1,159.99. Shipping is free.

Thanks to Staff Member Red_Liz for sharing this deal.

Details:
  • Whole-Home Backup: 3.5 kW output (expandable to 7 kW) with UPS switching under 20 ms; keeps refrigerators, Wi-Fi, medical devices, and lights running during outages
  • Scalable Capacity: Starts at 5.12 kWh, expandable up to 15.36 kWh for growing energy needs
  • Off-Grid Ready: Quiet, zero-emission LiFePOâ‚„ power ideal for RVs, camping, tools, and outdoor events
  • Durable & Safe: Rugged metal-cased LiFePOâ‚„ battery with BMS; 3,000+ cycles (8–10 years daily use); operates down to –4°F
  • Smart & Portable: App monitoring, stackable modules, wheeled trolley with telescopic handle for easy transport and management
  • Package Includes: 1× 3500W inverter/controller, 1× base stand, and 2 or 4× 48V 50Ah battery modules
  • Note: PV/AC charging cables not included; contact [email protected] for base/layer bracket purchases or issues; wait for all packages before assembly

Editor's Notes

Written by SaltyOne | Staff
  • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
  • At the time of this posting, our research indicates that this is $140 lower than the next best comparable online prices starting from $1,129.99.
Please see the original post for additional details & refer to the comments below for discussion.

Original Post

Written by Red_Liz | Staff

Community Voting

Deal Score
+22
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16 Comments

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Apr 21, 2026 03:48 PM
412 Posts
Joined Nov 2007
DrGeeApr 21, 2026 03:48 PM
412 Posts
That is the cheapest and smallest 3.5 megawatt (3500kW) inverter I have ever seen.
9
Apr 21, 2026 04:56 PM
391 Posts
Joined Feb 2013
bosfordjdApr 21, 2026 04:56 PM
391 Posts

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

not really a deal, but cheaper, a bit cheaper than normal. It's been $1299 on their website for awhile. So $140 cheaper, not nothing but it's not 23% cheaper than normal.
Last edited by bosfordjd April 21, 2026 at 09:59 AM.
1
Apr 21, 2026 06:16 PM
189 Posts
Joined Nov 2009
sidosidoApr 21, 2026 06:16 PM
189 Posts
I thought this was two server rack batteries plus inverter. That would have been a good deal. Two 48V 50ah batteries? eh...
1
Apr 22, 2026 03:40 AM
1,032 Posts
Joined Jan 2014
leechungsrApr 22, 2026 03:40 AM
1,032 Posts
Quote from DrGee :
That is the cheapest and smallest 3.5 megawatt (3500kW) inverter I have ever seen.
3500000 watt!!???
Apr 22, 2026 04:08 AM
323 Posts
Joined Apr 2021
BrightTank8484Apr 22, 2026 04:08 AM
323 Posts
Quote from DrGee :
That is the cheapest and smallest 3.5 megawatt (3500kW) inverter I have ever seen.
for reference, a nuclear power plant is 1000 Mega Watt.
to output 0.35% of a nuclear power plant for a thousand bucks is a steal.

given, the product image only shows a 3500W, or 3.5kW, DC to AC Inverter.
this can only output 0.00035% of a nuclear power plant.
2
1
Apr 22, 2026 06:18 AM
101 Posts
Joined Apr 2017
jeremyhuytranApr 22, 2026 06:18 AM
101 Posts
It would be better if it is at $800
Apr 22, 2026 11:30 AM
227 Posts
Joined May 2024
FeistyWing507Apr 22, 2026 11:30 AM
227 Posts
Quote from DrGee :
That is the cheapest and smallest 3.5 megawatt (3500kW) inverter I have ever seen.
Lol, learn the math
4

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Apr 22, 2026 11:31 AM
227 Posts
Joined May 2024
FeistyWing507Apr 22, 2026 11:31 AM
227 Posts
It is seems good for my off grid farm
1
Apr 22, 2026 01:37 PM
1,192 Posts
Joined Nov 2007
swegaz0rdApr 22, 2026 01:37 PM
1,192 Posts
I like how they couldn't even bother to align the top unit level in the pic
1
1
Apr 22, 2026 01:48 PM
58 Posts
Joined Mar 2022
EfficientPlastic882Apr 22, 2026 01:48 PM
58 Posts
Thanks
1
Apr 22, 2026 07:45 PM
104 Posts
Joined Apr 2010
sixtomarceloApr 22, 2026 07:45 PM
104 Posts
Quote from swegaz0rd :
I like how they couldn't even bother to align the top unit level in the pic
It's the shadow/lighting creating that effect.
Pro
Apr 23, 2026 03:22 AM
315 Posts
Joined Mar 2024
OliveAlpaca1201
Pro
Apr 23, 2026 03:22 AM
315 Posts
Has anyone here shared their real experience with it?
1
Apr 23, 2026 12:21 PM
242 Posts
Joined Aug 2003
SmoothCriminalApr 23, 2026 12:21 PM
242 Posts
Deal dead. Shows 1500
Apr 23, 2026 01:31 PM
104 Posts
Joined Nov 2017
gonediving77Apr 23, 2026 01:31 PM
104 Posts
Could this run portable air conditioner, refrigerator & CPAP machine?

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Apr 23, 2026 07:13 PM
55 Posts
Joined Mar 2019
Brent2019Apr 23, 2026 07:13 PM
55 Posts
Quote from gonediving77 :
Could this run portable air conditioner, refrigerator & CPAP machine?
For how long? Sure it could run them.

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