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expiredshivster1796 posted Jun 04, 2026 12:46 PM
expiredshivster1796 posted Jun 04, 2026 12:46 PM

ECO-WORTHY 48V 100Ah Wall-Mount Battery + 5kW Off-Grid Inverter Combo $769.80 + Free Shipping

$770

$1,589

51% off
AliExpress
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ECO-WORTHY 48V 100Ah Wall-Mount Battery + 5kW Off-Grid Inverter Combo $769.80 + Free Shipping

ECO-WORTHY Store via AliExpress. Ship from US warehouse.

Apply coupon USAFF120​ for $120 off at checkout.

Final Price: $769.80

Key Specs:
  • System Power:​ 5000W (10kW peak) pure sine wave inverter with 120/240V split-phase output.
  • Battery Capacity:​ 51.2V 100Ah (5120Wh) wall-mount LiFePO4 battery, A-Grade cells.
  • Solar Charging:​ Built-in 100A MPPT controller, supports up to 6600W solar panel input.
  • Smart & Safe:​ 4.3-inch smart display, Bluetooth/Wi-Fi monitoring, BMS, breaker & fire protection.
  • Low-Temp Operation:​ Battery charges/discharges even at -4°F (-20°C), 6000+ life cycles.
  • Flexible Installation:​ Battery supports wall or floor mount; includes conduit box for tidy wiring.
  • Modes & UPS:​ Multiple PV/Grid charging & output modes; provides uninterrupted backup power (UPS).
  • Warranty:​ Backed by a 10-year performance warranty for long-term reliability.
Note1:​ You must be signed into your AliExpress account and have your address added to your address book 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.
Note2:​ Price may fluctuate slightly with currency exchange rates.

https://www.aliexpress.com/item/1...25383.html
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
ECO-WORTHY 48V 100Ah Wall-Mount Battery + 5kW Off-Grid Inverter Combo $769.80 + Free Shipping

ECO-WORTHY Store via AliExpress. Ship from US warehouse.

Apply coupon USAFF120​ for $120 off at checkout.

Final Price: $769.80

Key Specs:
  • System Power:​ 5000W (10kW peak) pure sine wave inverter with 120/240V split-phase output.
  • Battery Capacity:​ 51.2V 100Ah (5120Wh) wall-mount LiFePO4 battery, A-Grade cells.
  • Solar Charging:​ Built-in 100A MPPT controller, supports up to 6600W solar panel input.
  • Smart & Safe:​ 4.3-inch smart display, Bluetooth/Wi-Fi monitoring, BMS, breaker & fire protection.
  • Low-Temp Operation:​ Battery charges/discharges even at -4°F (-20°C), 6000+ life cycles.
  • Flexible Installation:​ Battery supports wall or floor mount; includes conduit box for tidy wiring.
  • Modes & UPS:​ Multiple PV/Grid charging & output modes; provides uninterrupted backup power (UPS).
  • Warranty:​ Backed by a 10-year performance warranty for long-term reliability.
Note1:​ You must be signed into your AliExpress account and have your address added to your address book 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.
Note2:​ Price may fluctuate slightly with currency exchange rates.

https://www.aliexpress.com/item/1...25383.html

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24 Comments

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Jun 04, 2026 04:22 PM
137 Posts
Joined Feb 2014
j1guyJun 04, 2026 04:22 PM
137 Posts
Excellent deal. Great value.
2
Jun 04, 2026 04:53 PM
192 Posts
Joined Nov 2009
sidosidoJun 04, 2026 04:53 PM
192 Posts
Wow. Good deal. I wonder if I could use this by shifting circuits over to this system and keeping my AC input.
Jun 04, 2026 05:15 PM
161 Posts
Joined Aug 2013
RichardR8401Jun 04, 2026 05:15 PM
161 Posts
I need a K.I.S.S. instructible on what all is needed for these deals. I'm in California and have solar now on NEM1 so this would be more for frequent power outages than time-of-day offset billing. I'd like to add batteries and not mess up my NEM1. Tired of all the UPS units throughout the house that need replacement batteries too frequently.

I'm fairly handy and could do most of the work myself, just bring in an electrician to verify and make the final connections.
2
Jun 04, 2026 06:06 PM
218 Posts
Joined Nov 2012
tmsawsJun 04, 2026 06:06 PM
218 Posts
really good deal. I'm still holding out for a rack mount, fingers crossed though. probably wishful thinking though.
1
Jun 05, 2026 03:53 AM
98 Posts
Joined Sep 2022
BiresJun 05, 2026 03:53 AM
98 Posts

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

Quote from RichardR8401 :
I need a K.I.S.S. instructible on what all is needed for these deals. I'm in California and have solar now on NEM1 so this would be more for frequent power outages than time-of-day offset billing. I'd like to add batteries and not mess up my NEM1. Tired of all the UPS units throughout the house that need replacement batteries too frequently.

I'm fairly handy and could do most of the work myself, just bring in an electrician to verify and make the final connections.
You can use AI to get started on the NEC (National Electrical Code). One BIG caveat: Almost everywhere will require you to pull permits and get inspections for anything that touches the grid. In other words, you can't legally make changes to your home box without a pro and permits. Off-grid/hybrid systems exist in a legal grey area.
I have 40 kWhr of batteries, 10 kW of solar arrays, and two 5kW inverters pushing split-phase (120/240V) into a siemens main panel. This powers minisplits and my Teslas, but doesn't touch the grid or any home wiring.

Also, in almost every case, the permits will require you to use UL-listed equipment, which these are not. UL gear is much more expensive for now.

If you really want to accept the curse search for DIY Solar forums. We don't bite and will offer TONS of help to anyone that accepts it.
1
2
Jun 05, 2026 03:55 AM
399 Posts
Joined Apr 2010
gapotterJun 05, 2026 03:55 AM
399 Posts
Good price but see if you can get similar from a US marketplace with some guarantees - AliExpress is NOT your friend if something goes sideways.
Jun 05, 2026 04:54 AM
530 Posts
Joined Sep 2007
mannyvJun 05, 2026 04:54 AM
530 Posts
The most expensive part for solar was storage. It looks like LiFePO4 batteries are the new standard for cheap storage that lasts for a long time. It's making the system I want cost-effective, which is amazing. The actual wholesale prices on these must be around 60% less.

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Jun 05, 2026 12:12 PM
61 Posts
Joined Jul 2016
gsharpriJun 05, 2026 12:12 PM
61 Posts
Quote from Bires :
You can use AI to get started on the NEC (National Electrical Code). One BIG caveat: Almost everywhere will require you to pull permits and get inspections for anything that touches the grid. In other words, you can't legally make changes to your home box without a pro and permits. Off-grid/hybrid systems exist in a legal grey area.I have 40 kWhr of batteries, 10 kW of solar arrays, and two 5kW inverters pushing split-phase (120/240V) into a siemens main panel. This powers minisplits and my Teslas, but doesn't touch the grid or any home wiring.Also, in almost every case, the permits will require you to use UL-listed equipment, which these are not. UL gear is much more expensive for now.If you really want to accept the curse search for DIY Solar forums. We don't bite and will offer TONS of help to anyone that accepts it.
Do you need two of these to support 240? I'm trying to do the same as you and have a separate electric network for my Tesla and mini splits to take care of the highest energy draw in my home.
Pro
Jun 05, 2026 12:13 PM
318 Posts
Joined Feb 2026
blue668
Pro
Jun 05, 2026 12:13 PM
318 Posts
Great deal, seems it's time to start my solar project.
Jun 05, 2026 01:48 PM
7 Posts
Joined Aug 2025
ShrewdActivity538Jun 05, 2026 01:48 PM
7 Posts
Says the deal is not available in my area. 🙄
Jun 05, 2026 01:51 PM
207 Posts
Joined Mar 2021
TenseApple583Jun 05, 2026 01:51 PM
207 Posts
Quote from Bires :
You can use AI to get started on the NEC (National Electrical Code). One BIG caveat: Almost everywhere will require you to pull permits and get inspections for anything that touches the grid. In other words, you can't legally make changes to your home box without a pro and permits. Off-grid/hybrid systems exist in a legal grey area.I have 40 kWhr of batteries, 10 kW of solar arrays, and two 5kW inverters pushing split-phase (120/240V) into a siemens main panel. This powers minisplits and my Teslas, but doesn't touch the grid or any home wiring.Also, in almost every case, the permits will require you to use UL-listed equipment, which these are not. UL gear is much more expensive for now.If you really want to accept the curse search for DIY Solar forums. We don't bite and will offer TONS of help to anyone that accepts it.
Do you use an inverter to 240 for your Teslas, or do you have some sort of DC to DC converter for that? The conversion losses (solar/battery DC -> Inverter -> AC (charger) -> Inverter -> DC (vehicle) would be sizable at vehicle scale.

I have an RV with a 12KWh 48V battery system and have converted as much of it as possible to DC to avoid inverter vampire usage when it's running and conversion losses.
1
Jun 05, 2026 02:13 PM
3,121 Posts
Joined Jan 2010
gmanvbvaJun 05, 2026 02:13 PM
3,121 Posts
Quote from ShrewdActivity538 :
Says the deal is not available in my area. 🙄
Same. Worked yesterday
Jun 05, 2026 02:18 PM
161 Posts
Joined Aug 2013
RichardR8401Jun 05, 2026 02:18 PM
161 Posts
Quote from Bires :
You can use AI to get started on the NEC (National Electrical Code). One BIG caveat: Almost everywhere will require you to pull permits and get inspections for anything that touches the grid. In other words, you can't legally make changes to your home box without a pro and permits. Off-grid/hybrid systems exist in a legal grey area.
I have 40 kWhr of batteries, 10 kW of solar arrays, and two 5kW inverters pushing split-phase (120/240V) into a siemens main panel. This powers minisplits and my Teslas, but doesn't touch the grid or any home wiring.

Also, in almost every case, the permits will require you to use UL-listed equipment, which these are not. UL gear is much more expensive for now.

If you really want to accept the curse search for DIY Solar forums. We don't bite and will offer TONS of help to anyone that accepts it.
Thank you for a constructive reply. I don't know why I'd get down-voted asking for knowledge. We can't all be experts in every thing....oh wait, this is the Internet Smilie Bon Jour
Jun 05, 2026 06:23 PM
98 Posts
Joined Sep 2022
BiresJun 05, 2026 06:23 PM
98 Posts
Quote from gsharpri :
Do you need two of these to support 240? I'm trying to do the same as you and have a separate electric network for my Tesla and mini splits to take care of the highest energy draw in my home.
Some inverters are single phase (Hot-Neutral) and will do 120V.
Some inverters have two (internal) inverters in split phase (Hot-inverted Hot) and will only do 240V.
Those are single phase and you will need two communicating to get split phase.

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Jun 05, 2026 06:26 PM
98 Posts
Joined Sep 2022
BiresJun 05, 2026 06:26 PM
98 Posts
Quote from TenseApple583 :
Do you use an inverter to 240 for your Teslas, or do you have some sort of DC to DC converter for that? The conversion losses (solar/battery DC -> Inverter -> AC (charger) -> Inverter -> DC (vehicle) would be sizable at vehicle scale.

I have an RV with a 12KWh 48V battery system and have converted as much of it as possible to DC to avoid inverter vampire usage when it's running and conversion losses.
Losses aren't that bad at all. Less than 10% overall. The weakest point is the solar. They HATE being shaded AT ALL.
My system:
DC solar arrays -->DC batteries-->DC/AC Inverters-->EV Charger (AC)

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