Ecoflow RIVER 3 Max Plus Portable Power Station | 600W | 858Wh

3x The Energy. Same Compact Footprint.

858Wh of total capacity in an integrated stacked setup you can still carry with one hand. Triple the standalone RIVER 3 Plus capacity, enough to run a typical efficient 12V camping fridge for around 3 days under suitable conditions (assuming roughly 250Wh per day), keep a home router and modem running through extended outages, or power a home office workstation through a full working day. Three times the energy with no extra cables to connect or manage.

Same Trusted RIVER 3 Plus Core

The RIVER 3 Max Plus uses the same RIVER 3 Plus core unit you already trust, just paired with the EB600 from the factory. That means the same 600W rated AC output (1200W X-Boost), the same under 10ms pro-grade UPS for compatible loads, the same X-GaNPower efficiency for up to 2x runtime on light-wattage appliances, the same LiFePO4 battery chemistry with 3000 cycles to 80%, and the same EcoFlow app control over Wi-Fi and Bluetooth. For the full unit details, see the RIVER 3 Plus listing.

RIVER 3 Plus vs Traditional UPS

The same comparison applies to the RIVER 3 Max Plus, with even more runtime thanks to the EB600.

Wire-Free Connection & Standalone USB-C Use

The EB600 connects to the RIVER 3 Plus using EcoFlow's wire-free Pogo Pin connection. No external cables, no screws, just stack and clip. The EB600 also works on its own as a 572Wh USB-C battery thanks to its built-in 140W USB-C port, so you can take it on lighter trips and leave the RIVER 3 Plus at home. The EB600 does not provide AC output by itself, only USB-C.

Expandable Capacity Configurations

The RIVER 3 Plus supports one extra battery. The EB600 (572Wh) gives you the maximum total capacity of 858Wh. If you prefer less weight, the EB300 (286Wh) is a lighter alternative at 572Wh total combined.

Faster AC Charging When Stacked

With the EB600 attached, the RIVER 3 Max Plus accepts up to 650W of AC input, faster than the standalone RIVER 3 Plus at 360W. Full top-up takes around 1.3 hours from a NZ wall outlet, so you can have the full 858Wh ready to go between morning coffee and heading out for the day.

Built to the Same Quality Standard

Both the RIVER 3 Plus and the EB600 use LiFePO4 battery chemistry with 3000 cycles to 80% capacity, around 10 years of everyday use before noticeable degradation. The internal battery packs are rated IP54 against splashes and dust, and EcoFlow's X-Guard protection covers over 40 safety measures across current, voltage, temperature, and circuit risks. The full power station should still be protected from rain, water exposure, and immersion.

What's in the Box

Pairs Well With

Set up the RIVER 3 Max Plus for off-grid use with a compatible EcoFlow solar panel. The EcoFlow 220W Lightweight Portable Solar Panel matches the unit's full 220W solar input for the fastest off-grid top-up, while the EcoFlow 110W Lightweight Portable Solar Panel is a lighter alternative for shorter trips or smaller setups. If you prefer the lighter extra battery option, the EcoFlow RIVER 3 Plus EB300 Extra Battery is available separately at 286Wh.