EcoFlow RIVER 3 Max Plus Portable Power Station – 858Wh

The EcoFlow RIVER 3 Max Plus combines a RIVER 3 Plus with an EB600 Smart Extra Battery for 858Wh of portable power. The wire-free battery connection provides additional capacity without a separate connection cable.

Highlights

• 858Wh total capacity from a RIVER 3 Plus and EB600 Smart Extra Battery.
• 600W rated AC output with 1200W surge and X-Boost support.
• Under 10 ms UPS transfer time for supported precision equipment.
• Eight outputs, including an additional 140W USB-C port on the extra battery.
• Wi-Fi and Bluetooth monitoring and control through the EcoFlow app.
• LFP battery chemistry rated for 3000 cycles to 80% capacity.

Key Specifications

• Capacity: 858Wh
• Dimensions: 234 × 232 × 286 mm
• Published system net weight: 10.8 kg
• AC output: 600W total, 1200W surge and X-Boost
• Solar input: up to 220W
• Noise level: under 30 dB under EcoFlow test conditions
• Warranty: 5 years

What's in the Box

• RIVER 3 Max Plus system, configured as RIVER 3 Plus + EB600 × 1
• AC charging cable × 1
• Car charging cable × 1
• USB-B to USB-A UPS communication cable × 1
• Quick start guide and warranty documentation × 1

Runtime, noise and charging performance vary with load and operating conditions. The published IP54 rating applies only to the battery pack, not the complete product.