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expired Posted by David_David • Jun 9, 2025
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expired Posted by David_David • Jun 9, 2025

Costco Members: EcoFlow River 3 Plus Wireless Boost Combo

+ Free Shipping

$220

$280

21% off
Costco Wholesale
70 Comments 27,788 Views
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Deal Details
Costco Wholesale has for its Members: EcoFlow River 3 Plus Wireless Boost Combo (EFR3PLUS-W+RP5KPIN-US-CBOX) on sale for $219.99. Shipping is free.

Thanks to community member David_David for sharing this deal.

Features:
  • 286Wh Capacity for Outdoor Recreation, Daily Backup, Home Office & Gaming
  • 2pcs 5000mAh RAPID Magnetic Power Banks Enjoy a Swap and Share Fast Charging
  • EcoFlow River 3 Plus Wireless: 600W Rated Output, Surge 1200W AC Output
  • EcoFlow River 3 Plus Wireless: <10 ms Pro-grade UPS, 1-hr Fast Charging
  • Power Bank: 15W Wireless Charging, 30W Cable Charging, 0% to 70% in 33-min

Editor's Notes

Written by qwikwit | Staff
  • The sale is valid through 6/23/25. While supplies last. Limit 5 per member.
  • If you don't have a Costco Warehouse Membership, you can sign-up here
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

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 3 Plus Wireless Boost Combo (EFR3PLUS-W+RP5KPIN-US-CBOX) on sale for $219.99. Shipping is free.

Thanks to community member David_David for sharing this deal.

Features:
  • 286Wh Capacity for Outdoor Recreation, Daily Backup, Home Office & Gaming
  • 2pcs 5000mAh RAPID Magnetic Power Banks Enjoy a Swap and Share Fast Charging
  • EcoFlow River 3 Plus Wireless: 600W Rated Output, Surge 1200W AC Output
  • EcoFlow River 3 Plus Wireless: <10 ms Pro-grade UPS, 1-hr Fast Charging
  • Power Bank: 15W Wireless Charging, 30W Cable Charging, 0% to 70% in 33-min

Editor's Notes

Written by qwikwit | Staff
  • The sale is valid through 6/23/25. While supplies last. Limit 5 per member.
  • If you don't have a Costco Warehouse Membership, you can sign-up here
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by David_David

Community Voting

Deal Score
+52
Good Deal
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Top Comments

underworldtaker
263 Posts
32 Reputation
Yes if not return it and buy it again
TidalWaveOne
13098 Posts
4375 Reputation
Important info if using as UPS...

https://www.reddit.com/r/Ecoflow_...lus_delta/

69 Comments

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Jun 9, 2025
78 Posts
Joined Apr 2008
Jun 9, 2025
kard
Jun 9, 2025
78 Posts
Oh, nice find. Thanks for posting. I've been on the fence but now I'll bite.
Pro
Jun 9, 2025
504 Posts
Joined Jan 2015
Jun 9, 2025
pricesniper
Pro
Jun 9, 2025
504 Posts
If anyone is curious about how this works as a UPS, this video was pretty informative: https://www.youtube.com/watch?v=JkBZVDWnyOc
1
Jun 9, 2025
336 Posts
Joined Nov 2017
Jun 9, 2025
sd_King
Jun 9, 2025
336 Posts
Can Costco price match? I got it for $279 few weeks back
Jun 9, 2025
263 Posts
Joined Nov 2015
Jun 9, 2025
underworldtaker
Jun 9, 2025
263 Posts
Quote from sd_King :
Can Costco price match? I got it for $279 few weeks back

Yes if not return it and buy it again
Jun 9, 2025
322 Posts
Joined Sep 2013
Jun 9, 2025
RikB
Jun 9, 2025
322 Posts
I have the normal version of this as a UPS on my networking equipment (NAS, router, switches). Power has gone out twice that I know of since I got it and it switched over without rebooting the NAS. Pulling ~90 w it estimated 3 hours hrs run time on the screen but the power came back after a hour each time. Definitely not a 'wait out the storm' power outage solution, but good if you deal with occasional brown outs or frequent hiccups in your grid power.

The normal River 3 Plus 286wh regularly goes on sale for $189 so this adds wireless charging capability/2 portable power banks + costco warranty for $30. I'll probably buy one next time Im in store for keeping in the mini van, mostly for the swappable power banks because the family likes playing Pokémon Go at the parks lol.
Pro
Jun 9, 2025
13,098 Posts
Joined Apr 2005
Jun 9, 2025
TidalWaveOne
Pro
Jun 9, 2025
13,098 Posts
Important info if using as UPS...

https://www.reddit.com/r/Ecoflow_...lus_delta/
Jun 9, 2025
964 Posts
Joined Dec 2017
Jun 9, 2025
TurboRabbit
Jun 9, 2025
964 Posts
Is this cheaper in store by chance? I know sometimes it is but typically not by much.
1

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Jun 9, 2025
5 Posts
Joined May 2019
Jun 9, 2025
cmctyl
Jun 9, 2025
5 Posts
Quote from TurboRabbit :
Is this cheaper in store by chance? I know sometimes it is but typically not by much.
You can check the in-store price using the Costco app if the item is in stock. It's the same price in my region.
Jun 9, 2025
140 Posts
Joined Jan 2016
Jun 9, 2025
amorello
Jun 9, 2025
140 Posts
Quote from TidalWaveOne :
Important info if using as UPS...https://www.reddit.com/r/Ecoflow_...lus_delta/
any recommendation for a UPS solution for computer and networking gear as I'll get power flickers during storms.
Jun 9, 2025
87 Posts
Joined Sep 2014
Jun 9, 2025
pmail
Jun 9, 2025
87 Posts

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

I have the river 3 plus and connected my critical networking stuff to it like a UPS but the big issue i have is ecoflow screwed up the firmware update process. Instead of downloading the file locally or leaving AC working, they did neither. So if you run an update from the app it begins the process on the unit, then turns off AC which cuts power to all of your networking gear... which is a major problem because it's trying to stream down the firmware file. It will eventually fail the update, restart and you'll have to unplug everything and plug it into something else while you update the firmware. My new plan is to put the unit between my existing UPS and the wall because any time I have to run my generator during an outage the UPS freaks out and switches on/off because of the power quality. I'm hoping this will extend runtime, clean the power for the UPS and the UPS will keep things running while the firmware updates on this thing.
2
Jun 9, 2025
177 Posts
Joined Nov 2010
Jun 9, 2025
sillieidiot
Jun 9, 2025
177 Posts
Quote from amorello :
any recommendation for a UPS solution for computer and networking gear as I'll get power flickers during storms.
The cyberpower units from Costco work decently. Or you can get some from apc/vertiv, etc.
Pro
Jun 9, 2025
13,098 Posts
Joined Apr 2005
Jun 9, 2025
TidalWaveOne
Pro
Jun 9, 2025
13,098 Posts
Quote from amorello :
any recommendation for a UPS solution for computer and networking gear as I'll get power flickers during storms.
For old reliable, the CyberPower pure sine UPS's with the tried and true lead acid batteries.

I am switching to the EcoFlow units even though they have 'UPS use' flaws, hoping the units will truly last 10+ years without worrying about dead or dying lead acid batteries and having to change them every 3-5 years.

Check out my comment here and the response by AdriftAtlas using an AMETEK XG-PCS-15D... I ended up getting some of the AMETEK units and the cable hack to change the settings for low and high voltage cut-off and it seems to be working well so far.
https://www.reddit.com/r/Ecoflow_...are_button
Jun 9, 2025
105 Posts
Joined Dec 2019
Jun 9, 2025
ejwill
Jun 9, 2025
105 Posts
Quote from sd_King :
Can Costco price match? I got it for $279 few weeks back
you can request a price adjustment; I just did. https://customerservice.costco.co...w/a_id/628
Jun 9, 2025
86 Posts
Joined Jul 2017
Jun 9, 2025
yoyo_0226
Jun 9, 2025
86 Posts
Quote from cmctyl :
You can check the in-store price using the Costco app if the item is in stock. It's the same price in my region.
It shows online price in Costco app same as on costco website, I verified it for some other item that in store price is lower than the price shown in app or website.

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Jun 9, 2025
1,245 Posts
Joined Jul 2015
Jun 9, 2025
arooni
Jun 9, 2025
1,245 Posts
is this model still capable of using the external river3 plus batteries? eb300/eb600?

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