ECO-WORTHY 48V 100Ah LiFePO4 Battery + 3.5KW 48V Solar Hybrid Inverter MPPT 80A Controller $1000 + Free Shipping

flecks_indigo

Nov 03, 2025 07:46 PM

183 Posts

Joined Dec 2008

flecks_indigoNov 03, 2025 07:46 PM

183 Posts

Is this a good deal? If not, please provide examples of other better deals (if possible).

MPPT is $599 on Amazon, but reviews on aren't great:
https://www.amazon.com/ECO-WORTHY...0F53TKRBT/

Battery is $899 on Amazon, better reviews:
https://www.amazon.com/ECO-WORTHY...0DP4LTRMG/

quaked

Nov 03, 2025 07:54 PM

175 Posts

Joined Nov 2011

quakedNov 03, 2025 07:54 PM

175 Posts

Quote from flecks_indigo

:

Is this a good deal? If not, please provide examples of other better deals (if possible).MPPT is $599 on Amazon, but reviews on aren't great:https://www.amazon.com/ECO-WORTHY...0F53TKRBT/Battery is $899 on Amazon, better reviews:https://www.amazon.com/ECO-WORTHY...0DP4LTRMG/

To put things into perspective, an Ecoflow Ultra with 12kw of battery is in sale now for $8k

https://us.ecoflow.com/products/d...ro-ultra-x

I think this is a good deal for a turnkey-ish backup battery

1

leechiu

Nov 03, 2025 07:57 PM

28 Posts

Joined Jul 2014

leechiuNov 03, 2025 07:57 PM

28 Posts

This is refurbished on Ebay and has a 5000 watt inverter said to be made by SRNE:
https://ebay.us/m/1yP69S
Also for some reason Eco_Worthy sells for less on Ebay usually new or refurb. They run promos and it gets cheaper just need to setup a watchlist or keep looking.

topcho

Nov 03, 2025 07:58 PM

1,903 Posts

Joined Apr 2007

topchoNov 03, 2025 07:58 PM

1,903 Posts

Quote from flecks_indigo

:

Is this a good deal? If not, please provide examples of other better deals (if possible).

MPPT is $599 on Amazon, but reviews on aren't great:
https://www.amazon.com/ECO-WORTHY...0F53TKRBT/ [amazon.com]

Battery is $899 on Amazon, better reviews:
https://www.amazon.com/ECO-WORTHY...0DP4LTRMG/ [amazon.com]

Their 3.5kW HYBRID inverter was just on sale for $380

1

SmilingKitten1512

Nov 03, 2025 09:24 PM

87 Posts

Joined Nov 2020

SmilingKitten1512Nov 03, 2025 09:24 PM

87 Posts

Quote from flecks_indigo

:

Is this a good deal? If not, please provide examples of other better deals (if possible).

MPPT is $599 on Amazon, but reviews on aren't great:
https://www.amazon.com/ECO-WORTHY...0F53TKRBT/

Battery is $899 on Amazon, better reviews:
https://www.amazon.com/ECO-WORTHY...0DP4LTRMG/

It's a solid deal. Inverter is from SRNE and it's fine if you're looking for that size. These batteries will go on sale for around $750 plus tax on their ebay store, which is also a decent deal. You can find things cheaper if you buy a DIY kit but ~700 per server rack battery is about as low as I've ever seen any of them.

These are not UL listed so you can't tie into the grid or get permitted, but they work fine for off grid or even a transfer switch.

AceStarflyer

Nov 03, 2025 10:03 PM

118 Posts

Joined Sep 2017

AceStarflyerNov 03, 2025 10:03 PM

118 Posts

Quote from SmilingKitten1512

:

It's a solid deal. Inverter is from SRNE and it's fine if you're looking for that size. These batteries will go on sale for around $750 plus tax on their ebay store, which is also a decent deal. You can find things cheaper if you buy a DIY kit but ~700 per server rack battery is about as low as I've ever seen any of them.

These are not UL listed so you can't tie into the grid or get permitted, but they work fine for off grid or even a transfer switch.

I believe these batteries are UL listed now. Hard to know for sure, but the battery in this post seems to be this one:
https://www.eco-worthy.com/collec...ck-battery

YY3995

Nov 04, 2025 01:56 AM

19 Posts

Joined Aug 2013

YY3995Nov 04, 2025 01:56 AM

19 Posts

Good deal! brought one and will power my mini split

1

YY3995

Nov 04, 2025 01:57 AM

19 Posts

Joined Aug 2013

YY3995Nov 04, 2025 01:57 AM

19 Posts

Quote from AceStarflyer

:

I believe these batteries are UL listed now. Hard to know for sure, but the battery in this post seems to be this one:
https://www.eco-worthy.com/collec...ck-battery

Battery is UL listed. it is V3

3

ck90211

Nov 05, 2025 06:37 PM

301 Posts

Joined Oct 2008

ck90211Nov 05, 2025 06:37 PM

301 Posts

Good deal if you just need 120V. But if they can pair this battery with a 5KW split phase inverter (and if it parallels) for $1200 I would be all over it.

DanielJ4164

Nov 05, 2025 10:49 PM

33 Posts

Joined Aug 2016

DanielJ4164Nov 05, 2025 10:49 PM

33 Posts

Quote from ck90211

:

Good deal if you just need 120V. But if they can pair this battery with a 5KW split phase inverter (and if it parallels) for $1200 I would be all over it.

I had a chat with grok and (if it did it's research correctly) it looks like with a pair of combos with the yellow inverter can be paired up to do 240v. So $2k, -600 tax credit.
A big drawback is the single mppt on each inverter for those of us with piecemeal solar array strings planned, and the higher idle wattage of two inverters when doing passthrough UPS mode.

Excerpt when I was chatting about running a 240v well pump using a pair of the combos here:

Parallel and Sync the Inverters (10 Minutes):

Connect the RS485 parallel cable (included RJ45) between inverters: Plug from Inverter 1's "Parallel Comm" port to Inverter 2's (daisy-chain; no adapter needed).
Power on both (grid input from your 20A outlet to Inverter 1 only—Inverter 2 draws via parallel).
Configure via LCD/App:
- Inverter 1 (Master): Set to "Parallel Mode" > "Split-Phase" > "Leg 1" (L1, 120V).
- Inverter 2 (Slave): Set to "Parallel Mode" > "Split-Phase" > "Leg 2" (L2, 120V).
- Battery Protocol: Both to "Pylontech" (matches your batteries).
Sync Test: LCD should show "Parallel OK" (no faults like Error 37—common if cables reversed). Outputs: 120V L1-N (Inverter 1), 120V L2-N (Inverter 2), 240V L1-L2.

AC Input and Passthrough (5 Minutes):
- Plug your 20A outlet into Inverter 1's AC input (master handles charging; ~80A total to bank, throttled to 2,400W).
- Set mode: "AC Priority" or "Hybrid" (wall passthrough + battery top-up).
240V Output Wiring for Well Pump (NEMA 6-50, 15-20 Minutes):
- No Special Adapter: Use standard 6AWG wire to create the 240V feed—NEMA 6-50 is just two hots (L1/L2) + ground (no neutral needed for pure 240V loads like your pump).
- Wiring:
  - From Inverter 1 AC Output: Black wire (L1/Hot1) + White (Neutral, shared).
  - From Inverter 2 AC Output: Red wire (L2/Hot2) + Share the same White Neutral.
  - Ground (Green): Bond from both inverters to a common lug on the rack.
  - Join L1 (black), L2 (red), Neutral (white), Ground (green) in a junction box (~$10).
  - Run 6AWG THHN (black/red/green) ~10-20ft to your NEMA 6-50 receptacle (flush-mount box; install with strain relief).
- Pump Connection: Plug pump's cord into the 6-50 socket (if it needs a plug, crimp the 6-50 end on 6/3 cable). For 120V servers: Use Inverter 1's outlets/power strip (L1-N).
- Bonding: On master (Inverter 1), ensure neutral-ground bond (factory-set; confirm with multimeter—0 ohms). Do not bond on slave.

1

DanielJ4164

Nov 05, 2025 11:33 PM

33 Posts

Joined Aug 2016

DanielJ4164Nov 05, 2025 11:33 PM

33 Posts

Quote from ck90211

:

Good deal if you just need 120V. But if they can pair this battery with a 5KW split phase inverter (and if it parallels) for $1200 I would be all over it.

Ah, I think I see what you were talking about now, that looks like a nice inverter setup. They're asking 850 for it now on their site.
[IMG]https://www.eco-worthy.com/cdn/shop/files/5000W_Solar_Hybrid_Inverter_Charger_2_1000x.jpg?v=1756956288[/IMG]

ck90211

Nov 06, 2025 05:48 PM

301 Posts

Joined Oct 2008

ck90211Nov 06, 2025 05:48 PM

301 Posts

Quote from DanielJ4164

:

I had a chat with grok and (if it did it's research correctly) it looks like with a pair of combos with the yellow inverter can be paired up to do 240v. So $2k, -600 tax credit.
A big drawback is the single mppt on each inverter for those of us with piecemeal solar array strings planned, and the higher idle wattage of two inverters when doing passthrough UPS mode.

Excerpt when I was chatting about running a 240v well pump using a pair of the combos here:

Parallel and Sync the Inverters (10 Minutes):

Connect the RS485 parallel cable (included RJ45) between inverters: Plug from Inverter 1's "Parallel Comm" port to Inverter 2's (daisy-chain; no adapter needed).
Power on both (grid input from your 20A outlet to Inverter 1 only—Inverter 2 draws via parallel).
Configure via LCD/App:
- Inverter 1 (Master): Set to "Parallel Mode" > "Split-Phase" > "Leg 1" (L1, 120V).
- Inverter 2 (Slave): Set to "Parallel Mode" > "Split-Phase" > "Leg 2" (L2, 120V).
- Battery Protocol: Both to "Pylontech" (matches your batteries).
Sync Test: LCD should show "Parallel OK" (no faults like Error 37—common if cables reversed). Outputs: 120V L1-N (Inverter 1), 120V L2-N (Inverter 2), 240V L1-L2.

AC Input and Passthrough (5 Minutes):
- Plug your 20A outlet into Inverter 1's AC input (master handles charging; ~80A total to bank, throttled to 2,400W).
- Set mode: "AC Priority" or "Hybrid" (wall passthrough + battery top-up).
240V Output Wiring for Well Pump (NEMA 6-50, 15-20 Minutes):
- No Special Adapter: Use standard 6AWG wire to create the 240V feed—NEMA 6-50 is just two hots (L1/L2) + ground (no neutral needed for pure 240V loads like your pump).
- Wiring:
  - From Inverter 1 AC Output: Black wire (L1/Hot1) + White (Neutral, shared).
  - From Inverter 2 AC Output: Red wire (L2/Hot2) + Share the same White Neutral.
  - Ground (Green): Bond from both inverters to a common lug on the rack.
  - Join L1 (black), L2 (red), Neutral (white), Ground (green) in a junction box (~$10).
  - Run 6AWG THHN (black/red/green) ~10-20ft to your NEMA 6-50 receptacle (flush-mount box; install with strain relief).
- Pump Connection: Plug pump's cord into the 6-50 socket (if it needs a plug, crimp the 6-50 end on 6/3 cable). For 120V servers: Use Inverter 1's outlets/power strip (L1-N).
- Bonding: On master (Inverter 1), ensure neutral-ground bond (factory-set; confirm with multimeter—0 ohms). Do not bond on slave.

Thanks for checking good to know the yellow inverters are parallel-able.

AbstractGeo

Nov 09, 2025 10:23 PM

124 Posts

Joined Dec 2007

AbstractGeoNov 09, 2025 10:23 PM

124 Posts

Edit - if this is the right unit, it does support being used as one-half of a split-phase 120'240 setup: https://www.eco-worthy.com/collec...r-inverter (I'm not clear on what accessories would be needed in addition; there's at least some communication cabling involved.)
Previously: Does anyone have more concrete information than Grok, regarding these inverters being used for 120/240 split phase? The "parallel operation" video uses broken english and refers to "3-phase" while showing a connection example that's clearly not 3-phase.

(I really appreciate that you mentioned using Grok, btw - I just have zero faith in its abilities in this sort of of circumstance - s-ending ~$1500+ and wiring up AC and DC stuff, too, with stuff that may not even have a manual available.)

Cyber Monday is upon us!!!!!!Cyber Monday is upon us!!!!!!

ECO-WORTHY 48V 100Ah LiFePO4 Battery + 3.5KW 48V Solar Hybrid Inverter MPPT 80A Controller $1000 + Free Shipping

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