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EcoFlow Model 6645715
EcoFlow – River 3 Plus Smart Extra Battery 300EB (286 Wh Capacity) – Black
Original price was: $208.99.$167.19Current price is: $167.19. Save $42
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- Free shipping $60+3–5 business days
- 30-day returnsMoney-back guarantee
- Brand-newManufacturer warranty
- Ships from the USColumbus, OH
- Expandable up to 858Wh Level up your RIVER 3 Plus with an Extra Battery.
- Choose the EB300 (286Wh) and simply stack it at a time to achieve up 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.
Key specs
- Weight
- 7.7 lbs
- Dimensions
- 9.2 × 8.8 × 4.3 in
- Brand
- EcoFlow
- Model Number
- EFEB300
- Product Name
- River 3 Plus Smart Extra Battery 300EB
- Color
- Black
- Capacity
- 286 watt hours
- Weight
- 7.7 lbs
- Dimensions
- 9.2 × 8.8 × 4.3 in
- Brand
- EcoFlow
- Model Number
- EFEB300
- Product Name
- River 3 Plus Smart Extra Battery 300EB
- Color
- Black
- Capacity
- 286 watt hours
- Maximum Battery Life
- 1500 hours
- Battery Chemistry
- Lithium-ion
- Maximum Runtime At Full Load
- 0.5 hours
- Voltage Rating
- 120 volts
- Power Supply Input
- 1 x USB-C
- Maximum Input Power
- 140 watts
- Power Supply Output
- 1 x USB-C
- Number Of Devices Charged Simultaneously
- 1
- Rated Wattage Continuous
- 600 watts
- Rated Wattage Peak
- 1200 watts
- Product Height
- 4.3 inches
- Product Width
- 8.8 inches
- Product Length
- 9.2 inches
- Product Weight
- 7.7 pounds
- Warranty - Parts
- 5 years
- Warranty - Labor
- 5 Years
- UPC
- 842783151407
- Expandable up to 858Wh
Level up your RIVER 3 Plus with an Extra Battery. Choose the EB300 (286Wh) and simply stack it at a time to achieve up 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.
Standard US ground delivery is $5.49 and arrives in 3–5 business days. Orders over $60 ship free. Returns are accepted within 30 days of delivery.

























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