EcoFlow RIVER 3 Plus - Grey

This EB300 model adds an additional 286 watt-hours (Wh) of capacity to your EcoFlow RIVER 3 Plus power station.

When connected to a standard EcoFlow RIVER 3 Plus (typically 572Wh), the total combined capacity becomes up to 858Wh. This capacity depends on the specific variant of your main RIVER 3 Plus unit.

No, this EcoFlow RIVER 3 Plus Extra Battery (EB300) is designed exclusively for seamless integration with the EcoFlow RIVER 3 Plus Portable Power Station series through its pogo pin connection.

The extra battery uses a wireless pogo pin connection. Simply align it with the base of your powered-off RIVER 3 Plus unit and press down until it securely locks in place. No cables or tools are needed.

Yes, the extra battery features a 140W USB-C port that can be used independently to charge compatible devices such as laptops, phones, and tablets, or to recharge the extra battery itself.

When connected to the main RIVER 3 Plus unit, the extra battery charges simultaneously with the main unit. If used independently, you can charge it via its 140W USB-C input using a compatible USB-C charger (sold separately).

Yes, EcoFlow also offers an EB600 model of the RIVER 3 Plus Extra Battery, which provides 572Wh of additional capacity for even greater power expansion.

When connected, the entire system (main unit + extra battery) will charge together. The charging speed will be managed by the main RIVER 3 Plus unit, and the total charge time will be proportionally longer due to the increased overall capacity being charged.

Ensure both the main unit and extra battery are powered off before connecting. Carefully align the pogo pins and press firmly to secure the connection. Power on the main unit and check the display. If the issue persists, disconnect, clean the pogo pins on both units, and try again. Also, ensure your main unit is an EcoFlow RIVER 3 Plus model.

When connected to the main unit, ensure the main unit itself is powered on and either charging or discharging. If using the extra battery independently, verify the 140W USB-C cable and adapter are functioning correctly. Check the battery's charge level; if it's completely depleted, it might take a few minutes to show a charge indicator.

Try a different USB-C cable and a different device to rule out accessory issues. Ensure the extra battery itself has sufficient charge. Check the USB-C port for any debris or obstructions that might prevent proper connection. If the extra battery is connected to the main unit, sometimes the main unit's power management prioritizes its own ports. Disconnect the extra battery and try using its USB-C port independently.

Ensure the extra battery is fully charged before use. Over time, battery capacity can naturally degrade; however, a sudden, significant drop might indicate an issue. Check the power consumption of your connected devices. If the problem persists, ensure the connection is secure, and consider checking the battery health via the EcoFlow app (if available and compatible).