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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 lightweight, with a compact design and USB-C input and output port, making the Extra Battery highly convenient for on-the-go use. The Extra Battery offers the perfect solution for short outdoor trips with minimal devices to expand your possibilities.

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.

Specs - Extra Battery 300
Capacity
286Wh
Dimensions
234 × 224 × 110 mm
Net Weight
3.5 kg
Battery Chemistry
LiFePO4, 3000 cycles to 80% capacity
USB-C Output
1 port, 5V/9V/12V/15V⎓3A max, 20V/28V⎓5A max, 140W max
USB-C Input
5V/9V/12V/15V⎓3A max, 20V/28V⎓5A max, 140W max
Specs - Extra Battery 600
Capacity
572Wh
Dimensions
234 × 224 × 158 mm
Net Weight
5.8 kg
Battery Chemistry
LiFePO4, 3000 cycles to 80% capacity
USB-C Output
1 port, 5V/9V/12V/15V⎓3A max, 20V/28V⎓5A max, 140W max
USB-C Input
5V/9V/12V/15V⎓3A max, 20V/28V⎓5A max, 140W max