Skip to content

EcoFlow RIVER 3 Plus Extra Battery 300Wh

$209.00

Notify me when back in stock

Free Shipping and Free 30 Day Returns

For All Your Orders

Referral Program

We Pay You $50 Per Referral

Fast Order Processing

All Orders are Processed Same Day When Ordered Before 2 PM PST

Financing Options Available

Learn More About Financing

EcoFlow RIVER 3 Plus Extra Battery 300 (EB300): More Power, More Freedom

Tired of running out of power when you need it most? Extend your portable energy with the EcoFlow RIVER 3 Plus Extra Battery 300 (EB300). Adding an additional 286Wh to your RIVER 3 Plus, this lightweight, compact battery gives you longer runtimes for camping, outdoor work, and emergency situations—all with minimal setup and maximum convenience.

A front view of a sleek black device with an EcoFlow-like design, features a card slot and two buttons for "EJECT" and "VIDEO MODE." Its compact design rivals the portability of carrying an Extra Battery 300.

Solve Your Power Worries

Extended Runtime Anywhere, Anytime
Double your energy reserves instantly by adding the EB300 to your RIVER 3 Plus. Whether you're powering gadgets during a camping trip or staying prepared for blackouts, this extra battery ensures you never run out of juice.

Stay Powered Without the Main Unit
Need quick, on-the-go power? The standalone USB-C port (140W max) lets you charge or recharge devices directly from the EB300—no need to lug around the main power station for shorter trips or smaller devices.

Effortless Setup, Plug-and-Play Design
No screws, no hassle. The EB300's Pogo Pin technology makes setup a breeze. Simply clip it onto your RIVER 3 Plus and enjoy enhanced power in seconds.

Built to Last
The advanced LiFePO4 battery delivers up to 3,000 cycles to 80% capacity—equating to 10 years of daily usage. With the added reassurance of a 5-year warranty, you can count on the EB300 for long-term reliability.

Lightweight and Portable
At just 7.7 lbs, the EB300 is highly portable and compact, making it easy to take wherever your adventures or emergencies demand. It’s the perfect backup for travel, outdoor excursions, or home prep.


River 3 Plus Extra Battery 300Wh Key Features

  • Adds 286Wh of capacity to your RIVER 3 Plus, doubling energy reserves.
  • Standalone USB-C Port: Charge or recharge small devices without the main unit at up to 140W power.
  • Plug-and-Play Setup: Securely connects in seconds with no cables or tools needed.
  • Durable LiFePO4 Technology: 3,000 cycles for 10 years of consistent performance.
  • Lightweight Design: Weighs just 7.7 lbs, making it easy to carry and store.

River 3 Plus Extra Battery 300Wh Specifications

  • Capacity: 286Wh
  • Dimensions: 9.2 x 8.8 x 4.3 in
  • Weight: 7.7 lbs
  • Battery Chemistry: LiFePO4 (Lithium Iron Phosphate)
  • USB-C Input/Output: Supports up to 140W for direct device charging/recharging.
  • Lifespan: 3,000 cycles (10 years daily use).

What’s Included?

  • 1 x EcoFlow RIVER 3 Plus Extra Battery (EB300)
  • 1 x User Manual

Take Control of Your Power Needs Today

Don’t let limited power hold you back. The EcoFlow RIVER 3 Plus Extra Battery is the perfect add-on to double your runtime and give you the freedom to explore, work, and prepare for the unknown. Add one to your setup now and never run out of power again!

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
close
close
I have a question
sparkles
close
Hello! I am very interested in this product.
gift
Special Deal!
sparkles