expired
Costco Members: EcoFlow River 3 Plus Wireless Boost Combo
$200
$280
28% off
+ Free S&Hat Costco Wholesale
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+ Free S&Hat Costco WholesaleDeal 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:
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 slickdewmaster | Staff- This price matches the previous Frontpage Deal which received over 50 Thumbs Up from the community.
- Rated 4.4 out of 5 stars from 190+ customer reviews.
- $80 manufacturer's savings is valid 8/3/26 through 8/16/26 or while supplies last.
- If you don't have a Costco Warehouse Membership, you can sign up here.
- Details of Costco's return policy here.
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:
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 slickdewmaster | Staff- This price matches the previous Frontpage Deal which received over 50 Thumbs Up from the community.
- Rated 4.4 out of 5 stars from 190+ customer reviews.
- $80 manufacturer's savings is valid 8/3/26 through 8/16/26 or while supplies last.
- If you don't have a Costco Warehouse Membership, you can sign up here.
- Details of Costco's return policy here.
Community Voting
Deal
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+53
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Bad Deal
Top Comments
Using the 'backup reserve' feature to manually discharge the batteries will likely cut your AC power off even when the unit is still plugged into the grid, as it has done multiple times for me even with the unit indicating the battery is still at 20% or over (and with less than a 300 watt load). Updating the firmware also shuts off AC power. Unexpectedly shutting off the AC power when plugged into the grid is not acceptable for a UPS. My CyberPower UPS units didn't have these issues. I'm not happy that this has still not been fixed and EcoFlow support has been no help. In my opinion, these River 3 Plus units are definitely not "pro-grade" or "premium" UPS units. If they were then they wouldn't shut off AC power unexpectedly and you wouldn't have to manually baby the unit every month by discharging and recharging manually. This becomes even more of an issue if you have multiple units because you have to manually manage each one.
Furthermore, according to AI, using an extra battery, like an EB300 or EB600, can increase the liklihood of unexpected AC power shutoffs "due to complex battery communication and handover logic".
The only reliable "solution" I have found to this is to use a normal lead acid battery UPS (like APC or CyberPower) plugged into the EcoFlow. I put my most critical devices on it (like computers and NAS) so they stay on when the EcoFlow fails to keep the AC power on. Other non-critical items that aren't such a big deal if they get powered off (i.e. smart devices, monitors, speakers, accessories) are not on the lead acid UPS and are directly connected to the EcoFlow AC output.
Reddit thread with more info:
https://www.reddit.com/r/Ecoflow_...lus_
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25 Comments
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286Wh battery capacity is only going to run your fridge for maybe 1-2 hrs. Other poster is correct about compressor surge, also... River 3 may or may not even work depending on your fridge.
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Using the 'backup reserve' feature to manually discharge the batteries will likely cut your AC power off even when the unit is still plugged into the grid, as it has done multiple times for me even with the unit indicating the battery is still at 20% or over (and with less than a 300 watt load). Updating the firmware also shuts off AC power. Unexpectedly shutting off the AC power when plugged into the grid is not acceptable for a UPS. My CyberPower UPS units didn't have these issues. I'm not happy that this has still not been fixed and EcoFlow support has been no help. In my opinion, these River 3 Plus units are definitely not "pro-grade" or "premium" UPS units. If they were then they wouldn't shut off AC power unexpectedly and you wouldn't have to manually baby the unit every month by discharging and recharging manually. This becomes even more of an issue if you have multiple units because you have to manually manage each one.
Furthermore, according to AI, using an extra battery, like an EB300 or EB600, can increase the liklihood of unexpected AC power shutoffs "due to complex battery communication and handover logic".
The only reliable "solution" I have found to this is to use a normal lead acid battery UPS (like APC or CyberPower) plugged into the EcoFlow. I put my most critical devices on it (like computers and NAS) so they stay on when the EcoFlow fails to keep the AC power on. Other non-critical items that aren't such a big deal if they get powered off (i.e. smart devices, monitors, speakers, accessories) are not on the lead acid UPS and are directly connected to the EcoFlow AC output.
Reddit thread with more info:
https://www.reddit.com/r/Ecoflow_...lus_
edit: the other company is Jackery and I believe that's the one Costco is going to carry. it's only 1kWh and the bluetti one is 2kWh but more expensive.
Charged everything a week before and packed it away thinking the charge would hold. Surprise! It didn't. The base was at 0% when I was ready to inflate my air mattress
mine can run 600watts for DAYS
dont see it for sale anymore on ebay
old listing https://www.ebay.com/itm/146448954017
was $450 after ebay coupons
also at the very limit to what I can lift and move, very heavy lifepo4 batteries
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This could probably run your fridge for 6 to 8 hours, depending on size, efficiency, and how often you open it.
It can handle up to 1200 surge, which it will need right when the compressor kicks on. Once it's running, they use 80 to 200 watts until they cool down. Then they shut off until they start warming up again, depending on your set temperature.
If you keep it full of stuff (empty air doesn't stay cold as long as food or liquids) and don't open it too often while the powers out, it might even last a day. I have one, I'll test it and report back.
I've been researching (AI assisted) for best sub-$1K power mgmt system for 3000Wh+. Here's my current short list:
- Dabbsson DBS3000L — 3072 Wh — $999 (Best reliability + fast charging + stable inverter for sensitive electronics.)
- Pecron F3000LFP — 3072 Wh — $899 (Best price per Wh. Plenty of inverter headroom for your workstation.)
- Anker SOLIX F3000 — 2997 Wh — $999.99 (Best big-brand reliability.)
- ABOK Ark 3840Wh — 3840 Wh — $1099
I'm now leaning toward two (2) of whichever I select*: one for home office devices, one for typical household needs.*My emergency energy/power use-case doesn't require single-system integration for home integration and/or 240V split-phase.
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