Video summary

Is Ecoflow River 3 Plus a Good UPS? | Honest Review!

Main summary

Key takeaways

Product Review

Summary of key points (EcoFlow River 3 Plus as an UPS)

What the reviewer is using it for

  • The EcoFlow River 3 Plus is used as battery backup for a home office / desk workstation, including multiple workstations.
  • It’s used as a UPS for:
    • Monitors + PCs (a Windows desktop and a MacBook Pro).
    • Network equipment like a router/modem in at least one scenario.
  • The reviewer has used EcoFlow products since 2021 and even purchased a second River 3 Plus, suggesting the UPS use case is “doable,” but not without issues.

Unboxing / included accessories (and potential confusion)

The box includes:

  • User manual
  • Wall charging cable (tagged “EcoFlow River series only”)
    • The reviewer suspects this tag is meant to ensure compatibility and possibly reduce cable issues (e.g., protection/EMI), but they are not certain whether it can’t be used elsewhere.
  • A USB cable: USB “A to USB-B (old school)”
    • Intended for UPS/shutdown signaling.
  • Car charging cable (not used in the reviewer’s desk/workstation setup)

Potentially misleading/unclear point:

  • The “River series only” tag and included cable labeling felt somewhat deceptive or unclear to the reviewer.

Core limitation: automatic PC shutdown software doesn’t seem available yet

  • The unit includes USB ports intended to enable safe automatic shutdown of a computer during power loss.
  • However, in the reviewer’s experience:
    • They looked for EcoFlow UPS shutdown software.
    • They couldn’t find a downloadable option on EcoFlow’s website.
    • A referenced link also did not resolve for them.
  • Conclusion from the review:
    • The reviewer reports that automatic computer shutdown does not work reliably/officially (at least at the time they tested).
  • Additional OS note:
    • Mac OS support was reportedly not available based on other videos and the reviewer’s own experience.

UPS performance expectation they support: fast failover

  • The reviewer believes EcoFlow’s claimed 10 ms failover is credible (they reference tests they’ve seen).
  • This is considered a key strength for preventing unwanted reboots/shutdowns during outages.

Pros (user experience / features)

Strong feature: the app

  • The EcoFlow app provides detailed power/battery information and control.
  • Example app capabilities described:
    • Watts drawn from wall vs watts powering devices fluctuate with usage.
    • Ability to set charge/discharge limits, including a battery charge cap (reviewer uses up to 90%).
    • Estimated runtime when unplugged (remaining backup time).

Charge/discharge behavior and usability

  • The reviewer contrasts it with typical lead-acid UPS units, claiming EcoFlow lasts longer under their workload.
  • They report it handles their usual needs without frequent battery replacement.

Battery expandability

  • The presence of an expansion port allows adding more battery capacity by stacking extra batteries.

Firmware update support (with acknowledged downside)

  • Firmware updates are supported, and the reviewer credits EcoFlow for generally doing a good job updating.
  • (See cons below for the risk this introduces.)

Power outage reminder option

  • The device can use optional flashing light behavior instead of aggressive beeping.

Cons / drawbacks (important)

  1. No working automatic shutdown software (at the time)

    • Even though USB is included for shutdown, the reviewer couldn’t access working/shipping software.

  2. Firmware updates can shut off AC outputs

    • During firmware updates, the AC ports shut off.
    • This can be dangerous if critical network gear (router/modem) is connected.
    • If outputs remain off after an update failure, recovery may require someone physically present.

  3. AC port limitations

    • Only two AC ports are located on the back, which may be inconvenient depending on desk layout.
    • A front AC port exists, but the reviewer says they never use it.

  4. Backup isn’t “everything forever”

    • The device is designed to bridge outages, but backup duration depends heavily on load.
    • The reviewer’s situation is also helped by the fact that a generator comes on quickly, so shutdown automation is less frequently needed for them.

  5. Prior reliability history with EcoFlow units

    • The reviewer reports issues across multiple River units (charging/power problems), but says support replaced units quickly under warranty.
    • They also mention an older unit that is out of warranty and has limitations (including a note that USB-C charging passthrough stopped).

Reliability / customer support notes (context)

  • One unit stopped charging within about a month → replacement sent under warranty.
  • Another unit wouldn’t power on on arrival → resolved after overnight charging, then later failed again → free replacement sent.
  • Overall, they praise EcoFlow customer support despite product hiccups.

Comparisons made vs other UPS options

Compared to “off-the-shelf” lead-acid UPS units

  • EcoFlow is claimed to have better battery longevity (reviewer speculates it could be up to ~11 years).
  • Typical UPS units are said to have worse apps/UI (EcoFlow’s app is praised).
  • Typical units generally avoid this particular firmware behavior where AC outputs shut off during updates.

Compared within EcoFlow lineup

  • Mentions other EcoFlow products (e.g., Delta Pro 3, Delta Plus, River 3 series) that can power various devices and sometimes bridge rack/network setups.

Workarounds mentioned for firmware-update risk

Use a dual-input rack PDU

  • A dual-input PDU can fail over from UPS power to wall power during the update window (reviewer estimates 2–3 minutes).
  • This is framed as more practical for rack setups than desk setups.

Use two River units with separate PDU inputs

  • Update one unit while the other maintains power via failover.

Practical note:

  • The reviewer suggests saving/memorizing output settings so AC outputs return properly after update events.

Unique points list (distinct product-related claims)

  1. Uses River 3 Plus as UPS for workstation/home office + multiple stations.
  2. Reviewer bought a second unit → suggests feasibility, but not perfection.
  3. Box includes manual, wall cable tagged “River series only”, USB A-to-USB-B cable, and car charger.
  4. The wall cable tag felt unclear/misleading.
  5. USB cable is intended for computer safe shutdown on power failure.
  6. Shutdown software was unavailable to the reviewer → automatic shutdown not working reliably.
  7. Claimed 10 ms failover is believed credible.
  8. Major downside: firmware updates turn off AC outputs.
  9. If router/modem are connected, they may power off and cause update failure.
  10. Outputs may remain off after update issues, requiring human intervention.
  11. App shows detailed runtime and power draw/usage (wall vs devices).
  12. App allows charge/discharge limit configuration; reviewer caps at 90%.
  13. App settings are used to estimate remaining battery time.
  14. Reviewer claims typical lead-acid UPS batteries last worse and require replacement.
  15. Battery can be expanded via an expansion port.
  16. AC port placement limitations: two back ports; front port unused by reviewer.
  17. Power outage reminder can flash light instead of beeping.
  18. Reviewer trusts EcoFlow due to prior ownership since 2021.
  19. Reliability issues occurred in other units; EcoFlow replaced under warranty.
  20. Fast generator turnaround reduces the need for shutdown automation in the reviewer’s case.
  21. For racks, dual-input PDU mitigates risk; for desks it’s less practical.

Speakers / multiple viewpoints

  • The primary perspective is from one reviewer.
  • References exist to other videos and a commenter reply, but no additional distinct quoted viewpoints are provided beyond summaries like “other videos said…” and “someone replied with a link…”

Verdict / recommendation

  • Recommendation: Use the River 3 Plus as a hybrid UPS/backup bridge if:
    • You can tolerate that automatic computer shutdown software wasn’t available (at least during the reviewer’s test period), and
    • You can manage the firmware-update AC-output shutdown risk—especially if router/modem must stay online.
  • Best for: Desk and rack setups where fast failover matters and shutdown behavior can be handled differently (or where a generator restores power quickly).
  • Not ideal for: Critical UPS roles requiring reliable automatic shutdown, or where network gear must reliably stay powered during firmware updates.

Original video