
EcoFlow · Batteries
Works with
RIVER 3 Plus
EcoFlow RIVER 3 Plus Extra Battery EB600 (572 Wh): compare specifications and model compatibility. View expansion battery details, photos and support information at 326energy.
Use
The EcoFlow RIVER 3 Plus Smart Extra Battery EB600 adds 572 Wh of LiFePO4 capacity to the RIVER 3 Plus, tripling the station's total stored energy from 286 Wh to 858 Wh for longer weekend trips and extended home office backup.
Like the smaller EB300, the EB600 snaps directly under the RIVER 3 Plus via wireless Pogo Pin contacts with zero external cables, and includes a built-in 140W bidirectional USB-C port so it can also charge or power USB-C devices on its own.
Compatibility
In action

858 Wh Desktop & Network Backup Stack
RIVER 3 Plus locked onto the taller 572 Wh EB600 wireless Pogo Pin module for triple runtime on home office workstations, routers, and monitors during grid outages.

Overland Tailgate & 12V Fridge Operation
Cable-free Pogo Pin stack powers a 12V compressor cooler all weekend while offering an independent rear 140W USB-C fast-charge port.
Highlights
In the box
Keep browsing

Works with: RIVER 3 Plus
Adds 286 Wh of LiFePO4 capacity to the RIVER 3 Plus (572 Wh total) via cable-free Pogo Pin stacking. Rated for 3,000+ cycles to 80% capacity and includes a 140W bidirectional USB-C port for standalone charging and device power.

Works with: RIVER (original)
Doubles the original EcoFlow RIVER capacity from 288 Wh to 576 Wh. Bolts directly to the underside of the first-generation RIVER chassis with the included hardware for a single-handle, cable-free setup.

Works with: RIVER Pro
Doubles EcoFlow RIVER Pro capacity from 720 Wh to 1,440 Wh in a matching portable form factor. Connects via the included expansion cable and charges or discharges in sync with the host station.