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Overview

Expand the power of your portable power station with the EcoFlow River 3 Plus extra battery. It adds 286Wh, boosting total capacity to 858Wh—perfect for power outages or outdoor adventures. Use it independently with the 140W USB-C port to charge small devices or recharge the battery. With an IP65 waterproof rating, it's built for reliable outdoor use.

EcoFlow River 3 Plus Extra Battery - 286Wh

Model: ECF09R3P300EB
Web Code: 19284710
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Return Policy

30 days to return or exchange

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Manufacturer's Warranty

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For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

  • Adds 286Wh of extra energy storage to the RIVER 3 Plus, expanding total capacity to up to 858Wh
  • Extra energy allows running a car fridge for 7.2 hours or a travel kettle for 42 minutes
  • Simple pogo pin connection lets you stack the extra battery in seconds—no cables or tools needed
  • Can be used independently from the RIVER 3 Plus unit
  • 140W USB-C port is ideal for charging small devices and recharging the battery when you're on the go
  • LFP battery chemistry gives the pack up to six time longer lifespan compared to the industry average
  • Exclusive X-Guard provides real-time monitoring and 40 protective features, shielding the extra battery from risks like overheating and short circuits
  • IP65 waterproof rating ensures protection against water splashes, making it perfect for outdoor use
  • UL 94V-0-rated casing is designed to withstand extreme heat, ensuring durability and reliability
  • Rigorously drop-tested from heights of up to 3.3ft.
  • Built-in USB-C port allows you to charge the RIVER 3 Plus extra battery directly
  • Connects to the RIVER 3 Plus and charge with solar panels, an AC outlet, or your car—in as little as 1.5 hours
Product Condition
Brand New

Dimension

Height
23 cm
Depth
12 cm
Weight
3490 g
Width (Inches)
9.84 in
Height (Inches)
9.06 in
Width
25 cm
Depth (Inches)
4.72 in

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.