EcoFlow River 3 Plus EB300 286Wh Extra Battery
Orders processed and shipped out in 5-7 business days
Covered by the full 12-month EcoFlow 
100-day free 
Request a free EcoFlow River 3 Plus EB300 286Wh Extra Battery is backordered and will ship as soon as it is back in stock.
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Description
Description
EcoFlow RIVER 3 Plus EB300 Extra Battery 286Wh Lightweight Power with USB-C Charging
The EcoFlow RIVER 3 Plus EB300 Extra Battery is a simple way to boost your power capacity and add more charging options to your off-grid setup.
With 286Wh of extra energy, it expands the runtime of your RIVER 3 Plus so you can keep devices powered longer when you’re on the road, at a campsite or during an outage.
This smart battery gives you an extra 140W USB-C port that works for both charging and recharging. You can connect it to the RIVER 3 Plus or use it as a stand-alone power source when you want something lighter to carry.
Thanks to its compact design and weight of just 7.7 pounds (about 3.5kg), it’s easy to pack and move around wherever you need backup power.
Connecting the EB300 is quick and hassle-free. It uses Pogo Pin technology and simple clips, so you don’t need cables or tools. The battery shares the same reliable LiFePO4 chemistry as the main unit, giving you up to 3000 cycles before dropping to 80% capacity.
With a lifespan of up to 10 years and a 5-year warranty, it’s a smart long-term investment for anyone looking to get more out of their portable power station.
Features and Benefits
- Adds 286Wh extra capacity for longer runtimes
- Extra 140W USB-C port for charging and recharging
- Can be used independently or attached to the RIVER 3 Plus
- Quick clip connection without cables or screws
- Lightweight and compact for easy transport
- Long-life LiFePO4 battery with up to 3000 cycles
- Lasts up to 10 years with regular use
Specifications
Specifications
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Capacity
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Technical Specifications
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Weight
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Warranty
Delivery
Delivery
All orders are shipped from Australia with fast shipping from trusted couriers & order tracking notifications sent via SMS and email.
Complementary shipping insurance included at no extra cost.
Orders processed and shipped out in 5-7 business days
Delivered via courier 3-10 days
Pickup unavailable for this product
Note: Shipping charges apply per shipment and may vary depending on the warehouse location or supplier.
View our shipping policy for full delivery details.
Our customer support team is here to help with any delivery concerns.
Finance Options
Finance Options
Your Details Are Safe
We ensure secure processing of your payment information and do not retain or have any access to your credit card details.
Lifetime Support
Eco Off Grid customers get free lifetime product support from our experts.
Need help? Call us anytime 1300 676 523
EcoFlow River 3 Plus EB300 286Wh Extra Battery Reviews
Frequently Asked Questions
Can I use the Extra Battery on its own without the main RIVER 3 Plus unit?
Can I use the Extra Battery on its own without the main RIVER 3 Plus unit?
Yes, you can use the EB300 independently. It has a 140W USB-C port that works as both an input and output, so you can charge devices like phones, tablets and laptops without connecting it to the main power station.
How do I connect the Extra Battery to the RIVER 3 Plus?
How do I connect the Extra Battery to the RIVER 3 Plus?
Connecting is simple. The EB300 uses Pogo Pin technology and clips into place without any cables or screws. Just align it with the main unit and secure it—it’s ready to go in seconds.
How long does the Extra Battery last?
How long does the Extra Battery last?
The battery uses long-life LiFePO4 cells rated for up to 3000 charge cycles before reaching 80% capacity. With regular use, you can expect reliable performance for up to 10 years.
What is your returns policy?
What is your returns policy?
We know how crucial it is to find the perfect products for your access needs. To ensure you shop confidently, we proudly offer 100-day Free Returns on eligible products.
If you need to return your product, we'll organise and cover the return shipping costs across Australia without any restocking fees or hidden costs.
You'll have the option for a store credit, a full refund, or an exchange when the returned products meet the return criteria:
- The products cannot be used, damaged or modified and must be returned in the original packaging materials.
- Some products, such as almost new, made-to-order, installed, and custom-made products, aren't eligible for return.
- The 100-Day period begins from the day that your order is delivered or picked up.
- Only valid for the original purchaser.
- Only valid for online sales via ecooffgrid.com.au.
- Refunds, store credits or item swaps apply only to the cost of the products. Installation fees and original shipping costs will not be refunded.
Find our more by visiting our Refund Policy page.
How long will it take to receive my order?
How long will it take to receive my order?
We understand your eagerness to start your eco-friendly journey. That's why we endeavor to dispatch your order within 24 hours, business efficiency at its best. A confirmation email, complete with tracking details, will follow, allowing you to monitor your package's progress towards its new sustainable home.
What is the warranty on EcoFlow items?
What is the warranty on EcoFlow items?
Eco Off Grid only works with well-known, industry-leading manufacturers such as EcoFlow. All products come with a minimum 12-month warranty.
Minor scratches and blemishes may be visible upon receipt of your item. However, if the item is delivered damaged please contact us immediately.
How can I learn more?
How can I learn more?
Here are some hand selected articles we think you'll find useful:
Or if you have further questions, check out our FAQ Page.
