An additional 140W of USB-C input and output option
Enjoy a wireless Pogo Pin connection—no cables or screws required
Reduce your load by using the Extra Battery independently
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Expandable capacity to 572Wh
Level up your RIVER 3 Plus with an Extra Battery. Choose EB300 (286Wh) and simply stack one at a time to achieve to 572Wh of pure energy.
Adds an extra charging and recharging option
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 also provides the freedom to use it independently.
Hassle-free connection
Utilizing Pogo Pin tech, the batteries connect wirelessly, fastening easily with clips instead of cables or screws.
Lightweight at only 7.7 lb
Weighing just 7.7 lb, the EB300 is lighter than the RIVER 3 Plus. It 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
The Extra Battery features the same LPF battery technology and offers a 5-year warranty, just like the RIVER 3 Plus. This ensures worry-free usage for up to 10 years, giving you peace of mind and long-lasting performance.
What's in the box
Specs
Capacity
286Wh
Dimensions
9.2 x 8.8 x 4.3 in
Net Weight
7.7 lb
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
Manual
EcoFlow RIVER 3 Plus Smart Extra Battery User Manual (EN)