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forum thread Posted by David_David • Last Friday
forum thread Posted by David_David • Last Friday

EcoFlow DELTA Pro 3 Portable Backup Power Station System TWIN set Kit with 50AMP Hub $4199

$4,200

$5,000

16% off
Costco Wholesale
38 Comments 7,594 Views
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WOW! Costco has further dropped the price an additional $300 on this package bundle to $4199!
(ALL Time Low for this Dual Delta Pro 3 WITH 50AMP Hub package)
-$800 discount will show at checkout
$800 manufacturer's savings is valid 6/27/25 through 7/20/25. While supplies last.

includes:
Two Ecoflow 4KWH Delta Pro 3 Main Units
One Ecoflow 50AMP Hub (connects two Delta Pro 3 Main Units together)
One 50 Amp NEMA 14-50P to SS2-50R Generator Cord (to connect to existing transfer switch or generator inlet -not included)

4000W AC output per Main unit (8000w surge)
Plug-and-play power solution with 120V/240V capability
2600w Solar input per main unit
LFP Battery 4000 cycles to 80%

https://www.costco.com/ecoflow-de...99769.html
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
WOW! Costco has further dropped the price an additional $300 on this package bundle to $4199!
(ALL Time Low for this Dual Delta Pro 3 WITH 50AMP Hub package)
-$800 discount will show at checkout
$800 manufacturer's savings is valid 6/27/25 through 7/20/25. While supplies last.

includes:
Two Ecoflow 4KWH Delta Pro 3 Main Units
One Ecoflow 50AMP Hub (connects two Delta Pro 3 Main Units together)
One 50 Amp NEMA 14-50P to SS2-50R Generator Cord (to connect to existing transfer switch or generator inlet -not included)

4000W AC output per Main unit (8000w surge)
Plug-and-play power solution with 120V/240V capability
2600w Solar input per main unit
LFP Battery 4000 cycles to 80%

https://www.costco.com/ecoflow-de...99769.html

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38 Comments

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5d ago
97 Posts
Joined Nov 2017
5d ago
karpo1
5d ago
97 Posts
Quote from Gdog2004 :
My house is 3300 sq ft. Hardly a "cabin". For those that can afford it, 1000's of people buy Ecoflow and other battery solutions as whole home solutions and I am sure plenty of them in the South too.But they probably live somewhere where the power doesn't go off for a week. Maybe someday you will live somewhere where your power doesn't go off for many days at a time. For those people who don't have that issue, its a great solution.
Ok, it is my fault that I live in wrong address. Are you working for Ecoflow or something? 8kWh is not enough for house where you need aircon, suggesting it is, is just lying.
1
5d ago
97 Posts
Joined Nov 2017
5d ago
karpo1
5d ago
97 Posts
Quote from Gdog2004 :
Generator people just can't seem to deal with the fact that there are cleaner, more convenient solutions than a Gas Generator. So they come in to all these threads with ignorant statements like "duhhh If you want to pay 4k to power a few lights for 2 hours, have at it" which is beyond stupid.You pay more upfront for them, but you may wind up paying less in the enddepending on how much you use it and if you incorporate solar.
My average usage on June has been 55kWh per day, highest usage 67kWh. Calculate how to use 8kWh battery for that usage
5d ago
5,322 Posts
Joined Jul 2004
5d ago
Gdog2004
5d ago
5,322 Posts
Quote from karpo1 :
My average usage on June has been 55kWh per day, highest usage 67kWh. Calculate how to use 8kWh battery for that usage
Definitely would not work for you. Is that an older house ?
I used 153,187 KWH for an entire month. And that's with 4 people and a pool and I use my AC every single day. My house is only 8 years old though, so you may live in something that isn't nearly as efficient.
5d ago
5,322 Posts
Joined Jul 2004
5d ago
Gdog2004
5d ago
5,322 Posts
Quote from karpo1 :
Ok, it is my fault that I live in wrong address. Are you working for Ecoflow or something? 8kWh is not enough for house where you need aircon, suggesting it is, is just lying.
Course not...see my other comment. And I use my AC every day.
4d ago
97 Posts
Joined Nov 2017
4d ago
karpo1
4d ago
97 Posts
Quote from Gdog2004 :
Definitely would not work for you. Is that an older house ?I used 153,187 KWH for an entire month. And that's with 4 people and a pool and I use my AC every single day. My house is only 8 years old though, so you may live in something that isn't nearly as efficient.
House is built 2024 3700sqf. Average temperatures are 85f, topping 95f, it is not that hot yet.
3d ago
774 Posts
Joined Oct 2008
3d ago
Galahad
3d ago
774 Posts
Quote from Gdog2004 :
Absolutely. Don't listen to people who tell you it will only last a few hours, that's BS. I have well water so I needed 240v and this worked great. ran it for 9 hours and still had like 35% left of battery on both of them. I ran 2 fridges, one burner on the stove, made 3 or 4 cups of Keurig coffee, ran 2 computers each with dual monitors, internet, lights, showered. Even ran the microwave for a few minutes. I basically lived life like normal for 9 hours...the only thing I didn't do was run the dryer or AC.
I guess it depends on the definition of "a few" hours 😅 According to my electric company I am always above my neighborhood average in terms of power usage, and taking cold month numbers to exclude AC (I have natural gas furnace), I hover around 28 kWh per day. So these 8 kWh could still last me more than 6h. Not too bad (although substantially less than in your case, I need to figure out where I am wasting so much energy). So, ideally, to "weather" a severe multi-day outage, these would not be enough, but for the more regular short-term outage, they are pretty good. Only problem would be AC (or dryer).
3d ago
5,322 Posts
Joined Jul 2004
3d ago
Gdog2004
3d ago
5,322 Posts
Quote from karpo1 :
House is built 2024 3700sqf. Average temperatures are 85f, topping 95f, it is not that hot yet.
Wow man, that is a crazy amount of watts per day. You use more in a week than my house uses in a month. And I am not even conservative about things so much ..AND I have a pool pump running 3-4 hours a day. If you need the AC running a ton this probably and your power goes out for days, this may not be for you, but it could work if you have a small inverter gen to charge these like I do.
Last edited by Gdog2004 July 2, 2025 at 08:22 AM.

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3d ago
5,322 Posts
Joined Jul 2004
3d ago
Gdog2004
3d ago
5,322 Posts
Quote from Galahad :
I guess it depends on the definition of "a few" hours 😅 According to my electric company I am always above my neighborhood average in terms of power usage, and taking cold month numbers to exclude AC (I have natural gas furnace), I hover around 28 kWh per day. So these 8 kWh could still last me more than 6h. Not too bad (although substantially less than in your case, I need to figure out where I am wasting so much energy). So, ideally, to "weather" a severe multi-day outage, these would not be enough, but for the more regular short-term outage, they are pretty good. Only problem would be AC (or dryer).
You could last over a day easy and just not use AC to stretch things out. I have not had to do it yet but for multi day outages, I bought a 250.00 inverter generator that I could charge these things to 80% or so within 60-90 minutes.

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