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frontpageDavid_David posted Dec 22, 2025 11:48 AM
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Item 1 of 2
frontpageDavid_David posted Dec 22, 2025 11:48 AM

Costco Members: EcoFlow River 3 Plus Wireless Boost Combo

+ Free Shipping

$200

$280

28% off
Costco Wholesale
15 Comments 5,420 Views
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Deal Details
Costco Wholesale has for their Members: EcoFlow River 3 Plus Wireless Boost Combo (EFR3PLUS-W+RP5KPIN-US-CBOX) on sale for $199.99. Shipping is free.

Thanks to Community Member David_David for sharing this deal.

About this Item:
  • 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 powerfuldoppler | Staff
  • Rated 4.5 out of 5 stars from customer reviews.
  • This price matches the previous Frontpage Deal.
  • Valid 12/22/25 through 01/07/26. While supplies last.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by David_David
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for their Members: EcoFlow River 3 Plus Wireless Boost Combo (EFR3PLUS-W+RP5KPIN-US-CBOX) on sale for $199.99. Shipping is free.

Thanks to Community Member David_David for sharing this deal.

About this Item:
  • 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 powerfuldoppler | Staff
  • Rated 4.5 out of 5 stars from customer reviews.
  • This price matches the previous Frontpage Deal.
  • Valid 12/22/25 through 01/07/26. While supplies last.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by David_David

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14 Comments

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Dec 22, 2025 10:18 PM
338 Posts
Joined Jan 2011
Jackswift150Dec 22, 2025 10:18 PM
338 Posts
I dont have the plus, but I have the River 3 and love that little guy. We had a power outage this week, was able to get the wife and kids dressed while still dark out. We have used this to power a movie projector by the pool where extension cords are a pain. Very flexible device, i may even upgrade to this higher wattage variant.
Dec 22, 2025 11:47 PM
1,323 Posts
Joined Jul 2015
arooniDec 22, 2025 11:47 PM
1,323 Posts
thanks had bought this earlier at a higher price and got a price adjustment today. love the unit, and I love it even more @ $200.

pairs well with a 220W ecoflow panel I bought refurbished on eBay for essentially unlimited laptop + hotspot power for hammock remote workdays. I need to do more of those Smilie
1
Yesterday 02:13 AM
51 Posts
Joined Feb 2020
HilariousString9069Yesterday 02:13 AM
51 Posts
Built in UPS. When not in use for other duties, plug your cable modem / router into this device and never lose your internet during power outages. Get 2 or 3 and use the other ones as battery backup for your security cameras in case you're away from home and lose power. These things rock.
1
Yesterday 05:45 AM
1 Posts
Joined Jul 2017
hyanarYesterday 05:45 AM
1 Posts
I have three of these. They are awesome. Turn off auto-updates if you use them as a UPS though. Updates will de-energize outputs.
1
Yesterday 03:32 PM
13,318 Posts
Joined Apr 2005
TidalWaveOneYesterday 03:32 PM
13,318 Posts
Quote from HilariousString9069 :
Built in UPS. When not in use for other duties, plug your cable modem / router into this device and never lose your internet during power outages. Get 2 or 3 and use the other ones as battery backup for your security cameras in case you're away from home and lose power. These things rock.
They are not that great for UPS's. I thought they were at first, but there are significant downsides, including a recommendation to prevent calibration drift by performing a full 0% to 100% charge and discharge cycle every 3 months, which is a pain in the ass.

More:
https://www.reddit.com/r/Ecoflow_...lus_delta/
3
Yesterday 03:46 PM
274 Posts
Joined Mar 2010
BMWBig6Yesterday 03:46 PM
274 Posts
Is this only available online? I checked every local store within 200 miles and it says "Item Not Sold at this Warehouse." Estimated delivery says Jan 5.
Last edited by BMWBig6 December 23, 2025 at 09:17 AM.
Pro
Yesterday 04:54 PM
344 Posts
Joined Sep 2013
RikB
Pro
Yesterday 04:54 PM
344 Posts
Quote from BMWBig6 :
Is this only available online? I checked every local store within 200 miles and it says "Item Not Sold at this Warehouse." Estimated delivery says Jan 5.
It used to be but my local warehouses phased it out around June and switched to carrying the Anker Solix instead. I would be surprised if any warehouses still had any.
1

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Yesterday 04:59 PM
320 Posts
Joined Oct 2011
opqYesterday 04:59 PM
320 Posts
If you use this as a UPS, test the transition several times to make sure it actually works for your load. We have a mini PC (well under 600W) that when connected to the River 3 Plus we got from Costco (the updated one manufactured later this year), the actual transition time was over 1 second (definitely not 10ms) one out of every 3 or so times. Apparently compared to traditional UPSes these really struggle with some inductive loads. Like PC power supplies.
Last edited by opq December 23, 2025 at 10:02 AM.
Yesterday 05:16 PM
2 Posts
Joined Nov 2017
WalterBlueYesterday 05:16 PM
2 Posts
Quote from HilariousString9069 :
Built in UPS. When not in use for other duties, plug your cable modem / router into this device and never lose your internet during power outages. Get 2 or 3 and use the other ones as battery backup for your security cameras in case you're away from home and lose power. These things rock.
The problem is they can cut power while updating the firmware which needs internet, so you also need a second UPS if you're going to do that or keep them offline.
1
Yesterday 05:18 PM
320 Posts
Joined Oct 2011
opqYesterday 05:18 PM
320 Posts
Quote from WalterBlue :
The problem is they can cut power while updating the firmware which needs internet, so you also need a second UPS if you're going to do that or keep them offline.
This is at least controllable (you can disable fw updates), it's not like conventional UPSes get FW updates often anyways, at least not cheaper ones.
Yesterday 05:32 PM
274 Posts
Joined Mar 2010
BMWBig6Yesterday 05:32 PM
274 Posts
Quote from RikB :
It used to be but my local warehouses phased it out around June and switched to carrying the Anker Solix instead. I would be surprised if any warehouses still had any.
Thank you for sharing this data point. I've seen a lot of Anker lately too.
Yesterday 06:32 PM
237 Posts
Joined Jan 2009
funnymanYesterday 06:32 PM
237 Posts
Here is something $100 more, JACKERY Explorer 600 V2, for double the storage, faster UPS and include solar panel but of course more than twice the weight and no detachable power banks……Any thoughts??

https://www.costco.com/p/-/jacker...ue&nf=true
1
Yesterday 09:32 PM
3 Posts
Joined Oct 2025
NervousFaucet8351Yesterday 09:32 PM
3 Posts
I have two of these. The mag chargers battery is mediocre but the big battery is solid. I use it all the time while running camera and networking gear at soccer fields for live streaming.

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