Adjust capacity for growing energy needs
Expandable up to 858Wh with 2 Extra Battery options

Level up your RIVER 3 Plus with an Extra Battery. Choose either the EB300 (286Wh) or the EB600 (572Wh), and simply stack one at a time to achieve up to 858Wh of pure energy.

Adds an extra charging and recharging option
More possibilities, more flexibility

Looking to charge more devices or conveniently power your RIVER 3 Plus via USB-C? Adding this extra battery expands its capacity and significantly enhances its versatility with an extra 140W USB-C port, offering the RIVER 3 Plus a new charging and recharging option. With the USB-C port, the Extra Battery gives you the freedom to use it independently.

Lightweight at only 3.5 kg
Use the Extra Battery independently to lighten your load

Weighing just 3.5 kg, the EB300 is light and compact with an extra USB-C input and output port, perfect for on-the-go or short outdoor trips.

10-year lifespan with an LFP battery
A one-time investment that lasts for years

The Extra Battery features the same LPF battery technology as RIVER 3 Plus. And, with a 5-year warranty, you'll get peace of mind and long-lasting performance.