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EcoFlow · Power station · RIVER 3 Max

RIVER 3 Max

- <10 ms pro-grade UPS for precision devices . - 600W rated output and 1200W X-Boost . - Up to 2× runtime for light-wattage appliances . - Expandable up to 858Wh with a wire-free connection . - Compact and lightweight . - 1-hr fast charging, no battery damage . - Up to 220W fast solar charging . - <30 dB whisper quiet for 24/7 use . . . . .

600W rated572WhRechargeable batteryListed available
Check EcoFlow price Official listed price $499.00
RIVER 3 Max (RIVER 3 Plus + Extra Battery 300)
Official product image · EcoFlow

Infographic gallery

Output, stored energy, charging, and portability.

01 · Usable output

600W rated output

Battery600W / 1,200W

The comparison uses EcoFlow’s published rated and peak, surge, or maximum output figures.

02 · Energy & runtime

Listed capacity

572Wh

Published runtime guidance

Runtime depends on stored capacity and connected load

03 · Size & construction

10.4 lb

Listed weight

9.2×9.1×5.8 in

Dimensions

Battery or engine
LiFePO4, 3000 cycles to 80% capacity battery system
Warranty
See official warranty terms
04 · Charging & continuity

Charging or integration

AC Input: 100~120V, 10A Max, 50/60Hz, 380W 0-100% in 60 min; Solar Input: 220W, 0-100% in as fast as 1.5 hr; Car Input: 220W, 11~55V, 0-100% in 3.3 hr; Generator Input: 100~120V, 10A Max, 50/60Hz, 380W 0-100% in 60 min

Backup transfer

<10 ms

Noise

<30 dB

Official product gallery

Product views and factory feature graphics.

The current official image set for RIVER 3 Max includes product views, connection diagrams, feature explanations, and compatible system configurations where EcoFlow publishes them.

EcoFlow US Standalone EcoFlow RIVER 3 Plus Portable Power Station
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Complete specifications

The complete factory data available for comparison.

These pages retain EcoFlow's model-specific output, charging, battery, port, continuity, dimensions, environmental, engine, fuel, app-control, and warranty fields where published.

Follow charging, storage, and installation guidance. Whole-home connections and transfer equipment should be installed according to EcoFlow instructions and applicable electrical codes.

Comparison summary

Battery output
600W rated / 1,200W peak or maximum
Stored energy
572Wh
Energy source
Rechargeable battery
Dimensions
9.2×9.1×5.8 in
Listed weight
10.4 lb
Price and availability
$499.00 official listed price; available from EcoFlow

Factory output & connection specifications

Capacity
286Wh
AC Output
3 outlets, 600W total (Surge 1200W, X-Boost 1200W)
USB-A Output
2 ports, 5V=2.4A, 12W max per port, total 24W
USB-C Output
1 port, 5/9/12/15⎓3A Max, 20V⎓5A Max,100W Max
AC Input
100~120V, 10A Max, 50/60Hz, 380W 0-100% in 60 min

Factory charging & battery specifications

Battery Chemistry
LiFePO4, 3000 cycles to 80% capacity
Solar Input
220W, 0-100% in as fast as 1.5 hr
Car Input
220W, 11~55V, 0-100% in 3.3 hr
Generator Input
100~120V, 10A Max, 50/60Hz, 380W 0-100% in 60 min
Charge Temperature
32°F-113°F
Discharge Temperature
14°F-113°F

Factory engine, fuel & runtime specifications

Noise
<30 dB

Factory dimensions & operating specifications

Dimensions
9.2×9.1×5.8 in
Net Weight
10.4 lb
Optimal Operating Temperature
68°F-86°F
Storage Temperature
68°F-86°F

Factory ownership, control & protection specifications

UPS
<10 ms

Official feature details

System capability

- <10 ms pro-grade UPS for precision devices .

Power and expansion

- 600W rated output and 1200W X-Boost .

Charging flexibility

- Up to 2× runtime for light-wattage appliances .

Battery and durability

- Expandable up to 858Wh with a wire-free connection .

Controls and continuity

- 1-hr fast charging, no battery damage .

Portability detail

- <30 dB whisper quiet for 24/7 use .

Best-fit uses

  • Camping and travel
  • Electronics and small appliances
  • Medical-device continuity planning
  • Short outages

Standout features

  • 600W rated output
  • 1,200W peak or surge output
  • 572Wh listed capacity
  • LiFePO4, 3000 cycles to 80% capacity

Match capacity and output to your actual loads.

Use the independent calculator before choosing a battery system or generator.

Check my power plan
Sources: EcoFlow RIVER 3 MaxEcoFlow productsVerified September 15, 2026

Ownership resources

Accessories, manuals, and documents.

Start with the exact EcoFlow RIVER 3 Max model or item number. Accessory families can look alike while using different connectors, electrical limits, engines, or mounting points.

Compatible accessories

Match by model and connection.

Verify exact fit

Solar charging equipment

Shop EcoFlow solar panels, charging leads, and adapters intended for its portable-power ecosystem.

Match the connector, solar input voltage, current limit, and maximum input published for RIVER 3 Max.
View official accessory options
Verify exact fit

Expansion battery

Review EcoFlow expansion batteries and required connection cables.

Use only an expansion battery that EcoFlow explicitly lists for RIVER 3 Max; similar-looking ports do not establish compatibility.
View official accessory options
Verify exact fit

Case, cart, or protective cover

Protective and mobility accessories can make storage and transport easier.

Check the listed dimensions and model fit for RIVER 3 Max; do not block cooling inlets or exhaust fans during operation.
View official accessory options

Manuals & PDFs

Official product materials.

Manuals and document lookupSupport pageSearch EcoFlow support materials using the complete model, item, or serial number.Official product pageProduct pageCurrent manufacturer overview, notices, specifications, downloads, and support links.

Compatibility note: Links lead to manufacturer or official retailer resources. Confirm the full model or item number, connector type, voltage, amperage, and published compatibility list before buying. Installation involving a home panel, inlet, transfer switch, or fuel plumbing should be handled as required by local code.