EcoFlow - River 3 Plus Smart Extra Battery 300EB (286 Wh Capacity) - Black
About this product
Extend your power capacity with the EcoFlow RIVER 3 Plus Smart Extra Battery. Designed for seamless integration with the RIVER 3 Plus, this modular battery boosts your total energy storage, making it ideal for outdoor adventures, emergency backup, or off-grid use. Lightweight, compact, and easy to attach — stay powered for longer, wherever you go.
Expandable up to 858Wh
Level up your RIVER 3 Plus with an Extra Battery. Choose the EB300 (286Wh) and simply stack it at a time to achieve up to 572Wh of pure energy.
Adds an extra charging and recharging option
Looking to charge more devices or conveniently power your RIVER 3 Plus via USB-C? Adding this extra battery expands its capacity and significantly enhances its versatility with an extra 140W USB-C port, offering the RIVER 3 Plus a new charging and recharging option. With the USB-C port, the Extra Battery also provides the freedom to use it independently.
Hassle-free connection
Utilizing Pogo Pin tech, the batteries connect wirelessly, fastening easily with clips instead of cables or screws.
Lightweight at only 7.7 lb
Weighing just 7.7 lb, the EB300 is lighter than the RIVER 3 Plus. It is lightweight, with a compact design and USB-C input and output port, making the extra battery highly convenient for on-the-go use. The Extra Battery offers the perfect solution for short outdoor trips with minimal devices to expand your possibilities.
10-year lifespan with an LFP battery
The Extra Battery features the same LPF battery technology and offers a 5-year warranty, just like the RIVER 3 Plus. This ensures worry-free usage for up to 10 years, giving you peace of mind and long-lasting performance.
- Capacity286 watt hoursMaximum Battery Life1500 hours
Reviews
Rating 5 out of 5 stars with 1 review
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Compare similar products
Extend your power capacity with the EcoFlow RIVER 3 Plus Smart Extra Battery. Designed for seamless integration with the RIVER 3 Plus, this modular battery boosts your total energy storage, making it ideal for outdoor adventures, emergency backup, or off-grid use. Lightweight, compact, and easy to attach — stay powered for longer, wherever you go.
The EcoFlow River 3 Plus (Wireless) Portable Power Station offers compact, reliable power with fast recharging, multiple ports, and solar compatibility—perfect for outdoor adventures or backup needs.
Elevate your portable power experience with the EcoFlow RIVER 2 Pro. Perfect for camping trips, outdoor events, or emergency backup at home, this power station packs a punch with its 768Wh capacity. It offers an 800W AC output with a surge capacity of 1600W, making it suitable for everything from smartphones and laptops to mini-fridges and CPAP machines. The RIVER 2 Pro recharges swiftly from 0 to 100% in just 70 minutes via AC input, and it also supports solar and car charging, giving you versatile options for any situation. Weighing only 17.2 lbs and featuring an advanced Battery Management System (BMS) for enhanced safety and longevity, the RIVER 2 Pro is your reliable partner for on-the-go power.
An ideal starter battery that is compact yet delivers powerful performance.
| Pros for EcoFlow - River 3 Plus Smart Extra Battery 300EB (286 Wh Capacity) - Black | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | Portability, Power Capacity, Overall Performance | There were no pros for this product— |
Specs
Customers often buy these together
More to consider
Top Deal$249.99The price was $269.00
$189.99The price was $329.99
$1,299.00The price was $1,399.00
Embrace the outdoors Sponsored
Top Deal$269.99The price was $299.99
$1,099.00The price was $1,199.00
Top Deal$179.99The price was $199.99
Discover related products
$69.99The price was $75.99
$81.99The price was $99.99
$279.95The price was $399.95
$49.99The price was $59.99
Keep exploring
$1,499.00The price was $1,649.00
