EcoFlow RIVER 3 Plus Extra Battery EB300 286Wh Expansion LiFePO4

EcoFlow RIVER 3 Plus Extra Battery EB300 286Wh Expansion LiFePO4 Power Supply

Shipping and Delivery

Free shipping to the 48 U.S. states on all items.

Other U.S. destinations available for a fee, typically range from $30–$400 depending on the product.

We assist with this process every day for brand new items only that qualify for shipping to those other locations.

Shipments outside the 48 states when purchased at our Florida hub may utilize one of our highly recommended freight partners.

This includes best rate pricing, full insurance, and Dangerous Goods labeling and inspection, when needed.

From there, your item is forwarded to your location.

You may choose local pickup or home delivery.

Tracking is provided to the hub; final delivery is fully insured and guaranteed.

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SKU: EFEB300
UPC: 842783151407

Product Overview

The EcoFlow RIVER 3 Plus Extra Battery EB300 is designed to expand your portable power capabilities with dependable performance and long term durability. Built specifically to integrate with the RIVER 3 Plus system, this expansion battery adds flexibility for users who need more runtime without sacrificing portability. Whether you are planning outdoor trips, preparing for unexpected power interruptions, or working remotely, this compact battery module delivers reliable supplemental energy where it matters most.

With a capacity of 286Wh, the EcoFlow RIVER 3 Plus Extra Battery increases total system storage while maintaining a lightweight and rugged design. It can also function independently, making it a versatile power source for charging small electronics and essential devices when a full power station is not required.

Expandable Power for Flexible Use

When connected to a compatible RIVER 3 Plus unit, this battery extends total available energy to support longer usage times. This makes it ideal for camping, mobile workstations, travel trailers, and emergency preparedness. The EcoFlow RIVER 3 Plus Extra Battery is engineered for seamless integration, ensuring stable power delivery and efficient energy management throughout the system.

For added convenience, the battery can also be used on its own. The integrated USB C output allows direct charging of smartphones, tablets, laptops, and other low power electronics. This independent functionality adds value for users who want a compact power option for short trips or daily carry scenarios.

Durable LiFePO4 Battery Technology

At the core of this expansion battery is advanced LiFePO4 chemistry, chosen for its long lifespan, safety, and consistent performance. This battery type supports thousands of charge cycles, translating to many years of dependable use. Compared to standard lithium batteries, LiFePO4 offers improved thermal stability and reduced degradation over time.

The EcoFlow RIVER 3 Plus Extra Battery is built for reliability in demanding environments. Its robust housing is engineered to withstand outdoor conditions, making it suitable for camping, field work, and travel. The durable construction supports peace of mind when using the battery in both indoor and outdoor settings.

Charging Options and Efficiency

The EB300 supports multiple charging methods to keep energy replenishment simple and efficient. It can be recharged through USB C, compatible solar panels, AC outlets when connected to the main unit, or vehicle charging setups. Fast charging support allows the battery to be restored in as little as 1.5 hours under optimal conditions.

This versatility ensures that the EcoFlow RIVER 3 Plus Extra Battery adapts easily to different power environments. Whether using solar energy off grid or conventional power sources at home, the battery integrates smoothly into your energy setup.

Key Features

1. Adds 286Wh of expandable capacity to the RIVER 3 Plus system

2. Can operate independently with built in USB C output

3. LiFePO4 battery chemistry for long cycle life and safety

4. Compact and portable design for easy transport

5. Multiple charging methods including solar and USB C

6. Designed for outdoor, travel, and emergency use

Technical Facts

1. Battery capacity rated at 286Wh

2. LiFePO4 chemistry for extended lifespan

3. Independent USB C output rated for fast device charging

4. Compatible with EcoFlow RIVER 3 Plus power stations

5. Engineered for stable power delivery and efficient energy use

6. Designed for portable and stationary applications

What’s Included

1. EcoFlow RIVER 3 Plus Smart Extra Battery EB300

2. Quick start guide

Real World Applications

The EcoFlow RIVER 3 Plus Extra Battery is well suited for a variety of everyday and professional applications. Campers can extend their power supply for lighting and electronics. Remote workers can keep laptops and communication devices running longer. Home users can rely on the added capacity during short power outages to maintain essential connectivity.

Because it supports solar charging, this battery also complements sustainable energy setups. Paired with compatible panels, it allows users to harness renewable energy and reduce dependence on traditional power sources.

Frequently Asked Questions

1. Can the EcoFlow RIVER 3 Plus Extra Battery be used without the main power station?
   Yes, it can operate independently using its built in USB C output for charging small devices.

2. How much additional runtime does it provide?
   It adds 286Wh of capacity, significantly extending usage time depending on connected devices.

3. Is it suitable for outdoor use?
   Yes, it is built with a rugged design suitable for outdoor and travel environments.

4. Does it support solar charging?
   Yes, it can be recharged using compatible solar panels as part of a flexible charging setup.

Long Term Value

By adding this expansion battery to your system, you gain flexibility, reliability, and future ready power scalability. The EcoFlow RIVER 3 Plus Extra Battery is a practical upgrade for users who want extended runtime without committing to a larger power station.

Warranty

Most warranty matters in all 50 states and U.S. territories are handled by email and phone support, unless EcoFlow suggests a replacement.

Factory warranty: Full coverage for the 48 contiguous U.S. states and outlying U.S. territories.

For outlying U.S. territories if replacement required: We can assist with return shipping to and from Florida at reduced rates; customer pays shipping.

CPS Extended Warranty optional: Starts 30 days post purchase, covers full value plus shipping for all areas.