EcoFlow RIVER 3 Plus Extra Battery: Power That Stacks. In the wild, "enough" is never enough. When the sun drops and the temperatures follow, your gear shouldn't quit before you do. The EcoFlow RIVER 3 Plus Extra Battery is the ultimate force multiplier for your setup—designed for those who live where the pavement ends. STAY OUT LONGER Whether you’re choosing the EB300 (286Wh) to keep things ultralight or the high-capacity EB600 (572Wh) for the long haul, this isn't just a battery—it's your insurance policy against the dark. Stack it on your RIVER 3 Plus and push your capacity up to 858Wh. That’s enough juice to keep your starlink running, your cameras filming, and your camp lights burning until dawn. WIRE-FREE WARRIOR No tangled cords. No loose connections. Using industrial-grade Pogo Pin technology, the extra battery clicks directly onto your RIVER 3 Plus with a secure, wireless snap. It becomes one solid unit—rugged, streamlined, and ready to be tossed in the back of the rig. INDEPENDENT STRIKE CAPABILITY Adaptability is survival. This isn't just an add-on; it’s a standalone powerhouse. Equipped with an independent 140W USB-C port, you can leave the main station at basecamp and take just the extra battery in your pack. It’ll charge your MacBook Pro at full speed or keep your drone batteries topped up while you’re on the move. BUILT FOR THE 10-YEAR TREK The world is harsh, so we built this to be harsher. LiFePO4 Chemistry: 3,000+ cycles to 80% capacity. Use it every day for a decade and it still won't quit. IP54 Rated: Dust and splashes don't matter. It’s built to handle the grit of the trail. X-Guard Protection: 40+ safety layers monitoring heat, voltage, and current in real-time. THE SPECS AT A GLANCE: Expandable Power: Up to 858Wh total capacity. Fastest Charging: Recharges from 0-100% in 1 hour when stacked. Weight: Starting at just 3.5kg (EB300)—because every gram counts when you’re off-grid. Connection: Wireless Pogo Pin + Secure clips. Stop watching the battery percentage. Start watching the horizon. Not sure how much power you need? Check out my simple formula here.
