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David_David 21.1K Views
Nov 9, 2025 6:01 PM

Costco Members: EcoFlow RIVER 2 Pro 768Wh 800W LiFePO4 Portable Power Station

$230

$300

23% off
+ Free Shippingat Costco Wholesale
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Deal Details
Costco Wholesale has for its Members: EcoFlow RIVER 2 Pro 768Wh 800W LiFePO4 Portable Power Station (Without Solar Panel, ZMR620-B-US-NBox) on sale for $299.99 - $70 off manufacturer's savings = $229.99. Shipping is free.
  • Note: Non-Members may purchase but are subject to a 5% surcharge.
Thanks to Community Member David_David for sharing this deal.

Specs:
  • Capacity: 768Wh
  • Battery Type: LiFePO4
  • Battery Lifecycle: 3,000+ cycles to 80%+ capacity
  • Inputs:
    • Solar Input Recharge: 11-50V, 13A, 220W max (MPPT)
    • AC Input Recharge: 100-120V~ 50Hz/60Hz, 940W max
    • Car Input DC: 12V/24V, 8A, 100W max
  • Outputs:
    • 4x AC (800W continuous pure sine wave, 1600W X-Boost, 120V 50Hz/60Hz)
    • 1x USB-C (5/9/12/15/20V, 5A, 100W max)
    • 3x USB-A (5V, 2.4A, 12W max each)
    • 1x Car Port DC (12.6V, 10A, 126W max)
    • 2x DC5521 (12.6V, 3A, 36W max each)
  • UPS Switch Time: < 30ms (EPS auto-switch)
  • Wireless Connection: Wi-Fi + Bluetooth (EcoFlow app)
  • Dimension: 10.6 x 10.2 x 8.9" (18.2 lbs)
  • Warranty: 5-Years

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
    • Details of Costco's return policy here.
    • If you don't have a Costco Warehouse Membership, you can sign-up here.
  • Additional Information:
    • $70 manufacturer's savings is valid 11/07/25 through 12/07/25. While supplies last.
    • Priced at ~$0.30/Whr for a name brand portable power station.
    • Rated 4.3 out of 5 stars at Costco Wholesale based on over 210 customer reviews.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by David_David
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for its Members: EcoFlow RIVER 2 Pro 768Wh 800W LiFePO4 Portable Power Station (Without Solar Panel, ZMR620-B-US-NBox) on sale for $299.99 - $70 off manufacturer's savings = $229.99. Shipping is free.
  • Note: Non-Members may purchase but are subject to a 5% surcharge.
Thanks to Community Member David_David for sharing this deal.

Specs:
  • Capacity: 768Wh
  • Battery Type: LiFePO4
  • Battery Lifecycle: 3,000+ cycles to 80%+ capacity
  • Inputs:
    • Solar Input Recharge: 11-50V, 13A, 220W max (MPPT)
    • AC Input Recharge: 100-120V~ 50Hz/60Hz, 940W max
    • Car Input DC: 12V/24V, 8A, 100W max
  • Outputs:
    • 4x AC (800W continuous pure sine wave, 1600W X-Boost, 120V 50Hz/60Hz)
    • 1x USB-C (5/9/12/15/20V, 5A, 100W max)
    • 3x USB-A (5V, 2.4A, 12W max each)
    • 1x Car Port DC (12.6V, 10A, 126W max)
    • 2x DC5521 (12.6V, 3A, 36W max each)
  • UPS Switch Time: < 30ms (EPS auto-switch)
  • Wireless Connection: Wi-Fi + Bluetooth (EcoFlow app)
  • Dimension: 10.6 x 10.2 x 8.9" (18.2 lbs)
  • Warranty: 5-Years

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
    • Details of Costco's return policy here.
    • If you don't have a Costco Warehouse Membership, you can sign-up here.
  • Additional Information:
    • $70 manufacturer's savings is valid 11/07/25 through 12/07/25. While supplies last.
    • Priced at ~$0.30/Whr for a name brand portable power station.
    • Rated 4.3 out of 5 stars at Costco Wholesale based on over 210 customer reviews.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by David_David

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33 Comments

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Nov 9, 2025 6:10 PM
443 Comments
Joined Oct 2004
wrangler1114Nov 9, 2025 6:10 PM
443 Comments
Do these fall under Costco forever return?
3
Nov 9, 2025 6:36 PM
3.3K Comments
Joined Jan 2006

This comment has been rated as unhelpful by Slickdeals users.

Nov 9, 2025 7:09 PM
169 Comments
Joined Apr 2007
rajivgandhiNov 9, 2025 7:09 PM
169 Comments
Quote from jneset View quoted comment :
Save yourself a Franklin spot.
It was $160 several times at worst buy.
IMO, this is the lowest for this particular model & new. Can you point to any previous thread? (I couldnt find any myself)
Pro
Nov 9, 2025 7:19 PM
4.9K Comments
Joined Oct 2021
StrongMoney163
Pro
Nov 9, 2025 7:19 PM
4.9K Comments
"X-Boost output to 1600W and run 80% of home appliances"

this is a nice little high-powered grab-n-go device

the specs on the costco page are a little confused'
1
Nov 9, 2025 7:46 PM
880 Comments
Joined Nov 2006
AcinaNov 9, 2025 7:46 PM
880 Comments
Quote from jneset View quoted comment :
Save yourself a Franklin spot.
It was $160 several times at worst buy.
River 2 is only 256wh, this is EcoFlow RIVER 2 Pro with 768wh.
Not the same thing, but the Ecoflow naming is terrible inviting confusion.
Nov 9, 2025 7:47 PM
37 Comments
Joined Feb 2015
jgmiterekNov 9, 2025 7:47 PM
37 Comments
Will this work as backup power for sump pump?
Nov 9, 2025 8:09 PM
50 Comments
Joined Mar 2017
FuzzyDunlop8Nov 9, 2025 8:09 PM
50 Comments

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

Quote from StrongMoney163 View quoted comment :
"X-Boost output to 1600W and run 80% of home appliances"

this is a nice little high-powered grab-n-go device

the specs on the costco page are a little confused'
Don't buy that incredibly misleading marketing line. X-Boost does not boost the output. It reduces voltage and only works if the device you're powering will run at lower voltage, and even then, you're simply just running whatever appliance or device at lower output than you would typically, so its performance will likely be crippled if it even works at all.

I don't even know how they get away with marketing that feature, it's basically a full on lie. Maybe they only market it like that on US customer portals since in the US lying to the public is not only permitted but encouraged.
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Pro
Nov 9, 2025 8:32 PM
4.9K Comments
Joined Oct 2021
StrongMoney163
Pro
Nov 9, 2025 8:32 PM
4.9K Comments
Quote from FuzzyDunlop8 View quoted comment :
Don't buy that incredibly misleading marketing line. X-Boost does not boost the output. It reduces voltage and only works if the device you're powering will run at lower voltage, and even then, you're simply just running whatever appliance or device at lower output than you would typically, so its performance will likely be crippled if it even works at all.

I don't even know how they get away with marketing that feature, it's basically a full on lie. Maybe they only market it like that on US customer portals since in the US lying to the public is not only permitted but encouraged.
thanks, on the verge of getting this but ... can you advise of the next higher-priced product that can do more than 800 watts?
Nov 9, 2025 8:40 PM
739 Comments
Joined Dec 2006
jojocatNov 9, 2025 8:40 PM
739 Comments
Quote from jgmiterek View quoted comment :
Will this work as backup power for sump pump?
I use it for this but my sump pump is a 1/3HP Wayne CDU790 that has a PSC motor which makes it more efficient than some. I don't leave it connected all the time, but it can connect in passthrough mode and I'll do that when away on vacation. I like this over the DC basement watchdog type setup because without that I can fit two of the main 1/3HP pumps in the pit with one acting as the backup. Very clean setup IMO. Haven't ever had a problem with pump starts using this model or my older River Pro.
Nov 9, 2025 9:01 PM
739 Comments
Joined Dec 2006
jojocatNov 9, 2025 9:01 PM
739 Comments
Quote from FuzzyDunlop8 View quoted comment :
Don't buy that incredibly misleading marketing line. X-Boost does not boost the output. It reduces voltage and only works if the device you're powering will run at lower voltage, and even then, you're simply just running whatever appliance or device at lower output than you would typically, so its performance will likely be crippled if it even works at all.

I don't even know how they get away with marketing that feature, it's basically a full on lie. Maybe they only market it like that on US customer portals since in the US lying to the public is not only permitted but encouraged.
Agreed…should say something like "May allow you to run some appliances rated up to 1600W at reduced performance". Having said that, I'm glad it's there because it allows me to start my fridge while it fails without even though operating wattage is 400W. There are warnings about x-boost causing damage to anything with sensitive electronics though so beware. FWIW, in spite of the warnings I couldn't find actual reports of it frying anything and I wouldn't mind replacing this fridge anyway!
Nov 9, 2025 9:35 PM
120 Comments
Joined Oct 2019
RealDealForRealNov 9, 2025 9:35 PM
120 Comments
Quote from FuzzyDunlop8 View quoted comment :
Don't buy that incredibly misleading marketing line. X-Boost does not boost the output. It reduces voltage and only works if the device you're powering will run at lower voltage, and even then, you're simply just running whatever appliance or device at lower output than you would typically, so its performance will likely be crippled if it even works at all.

I don't even know how they get away with marketing that feature, it's basically a full on lie. Maybe they only market it like that on US customer portals since in the US lying to the public is not only permitted but encouraged.
This is a good product and deal, but I agree the x-boost marketing is insane. A more accurate description for the layman would be this:

X-boost allows running of many appliances rated for up to 1600W at an 800W rate (or less). It is best used for cooking or heating appliances that will still run at lower voltages. Appliances that exceed 800W run with x-boost will likely run at reduced capacity (e.g. heat slower).
3
Nov 9, 2025 9:49 PM
149 Comments
Joined Dec 2007
cjhindyNov 9, 2025 9:49 PM
149 Comments

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

I have had one of these for quite a while. We had about an 8hr power outage in August and I used it to make my protein shake (ninja blender), toast my toast (regular two slice toaster), and make coffee (Keurig), then plugged my fridge into it and kept it running until the battery ran out about an hour or so before the power came back on.
I just purchased (on Halloween) a second one, a refurb on eBay for $221 after taxes, wish I would have waited to pick this one up new.
1
Nov 9, 2025 10:29 PM
1.5K Comments
Joined Dec 2008
Xplic1TNov 9, 2025 10:29 PM
1.5K Comments
Lots of people in the Costco reviews are saying this gets closer to 600Wh instead of the advertised 768Wh. Wanted another generator to compliment my old GoLabs unit we mainly use for travel and outages. May just bite the bullet since it is Costco and you can always return.
Nov 9, 2025 10:38 PM
452 Comments
Joined Jan 2005

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Nov 9, 2025 11:18 PM
35 Comments
Joined Sep 2011
SchoferNov 9, 2025 11:18 PM
35 Comments
Quote from f900 View quoted comment :
Junk - If your going to buy a power station spend the money.
Is there some specific issue? Or general build quality?

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