Ecoflow River 3 Extra Battery 300

Overview

The EcoFlow RIVER 3 EB 300 Extra Battery is a compact auxiliary battery designed to expand the capacity of your EcoFlow RIVER 3 Plus. With 286 Wh of extra energy, it gives you more runtime for camping, travel, and everyday portable power use.

Built with LiFePO4 technology and a simple Pogo-Pin connection, the EB 300 is designed for convenience, long service life, and flexible use. It can be paired with the RIVER 3 Plus or used independently when you need an additional portable power source.

Why choose the EcoFlow RIVER 3 EB 300 Extra Battery?

If you want a reliable battery for camping or a practical portable power solution, the EB 300 is made to extend your setup without complicated cables. It is a useful option for users who want more energy storage while keeping their system compact and easy to manage.

• 286 Wh additional capacity for longer use
• Simple wireless-style connection with Pogo-Pin technology
• LiFePO4 battery chemistry for long-term durability
• Can be used independently from the main power station
• Compatible with EcoFlow RIVER 3 Plus for an expandable setup

Expandable power for outdoor and everyday use

With the EB 300 connected, the RIVER 3 Plus can reach a total capacity of 572 Wh, making it more suitable for longer trips or situations where you need to power multiple devices. For many users, this makes it a practical outdoor power supply for mobile and off-grid use.

The battery can also be charged via USB-C at up to 140 W, offering another layer of flexibility when you need to top up power efficiently.

Built with durable LiFePO4 technology

The EcoFlow RIVER 3 EB 300 uses LiFePO4 technology, which is known for long cycle life and stable performance. According to the product information, it is rated for approximately 3,000 charge cycles while retaining at least 80% of its original capacity.

That makes it a strong fit for users who want an expandable battery that supports regular use over time without frequent replacement.

Key features at a glance

• Extra battery for the EcoFlow RIVER 3 Plus
• 286 Wh capacity
• Pogo-Pin connection without extra cables
• USB-C charging up to 140 W
• Can be used separately from the power station
• LiFePO4 battery chemistry for long service life

Technical specifications

• Battery type: Lithium Iron Phosphate (LiFePO4)
• Capacity: 286 Wh
• Charge cycles: approx. 3,000 cycles to 80% capacity
• Discharge temperature: -10 °C to +45 °C
• Charge temperature: 0 °C to +45 °C
• Weight: approx. 3.3 kg
• Dimensions: 234 × 224 × 110 mm

FAQ

What is the EcoFlow RIVER 3 EB 300 Extra Battery used for?

It is used to add 286 Wh of extra capacity to the EcoFlow RIVER 3 Plus, giving you more runtime for portable devices and outdoor use.

Is the EB 300 compatible with the EcoFlow RIVER 3 Plus?

Yes, it is designed to work with the EcoFlow RIVER 3 Plus as an expansion battery.

Can the EcoFlow RIVER 3 EB 300 be used on its own?

Yes, the product information states that it can also be used independently from the main power station.

How is the battery connected?

It uses Pogo-Pin technology, so it connects directly without extra cables.

What type of battery technology does it use?

It uses LiFePO4, also known as lithium iron phosphate, which is valued for durability and long cycle life.

How long does the battery last?

The product information indicates approximately 3,000 charge cycles with at least 80% capacity retention.

Can it be charged with USB-C?

Yes, it can be charged via USB-C at up to 140 W.