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EcoFlow RIVER 3 Plus Smart Extra Battery
$319.00
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Full Manufacturer Warranty Included
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Free Shipping To The Lower 48
30 Day Return Window
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Description
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Why Buy From Us
Boost the performance and runtime of your EcoFlow RIVER 3 Plus with this Smart Extra Battery. Designed for seamless expansion, it offers you the flexibility to increase total capacity to as much as 858Wh by choosing the EB300 (286Wh) or EB600 (572Wh) option. The advanced design supports an additional 140W USB-C input/output, ensuring faster charging and versatile connectivity.
Adds an extra charging and recharging option
More possibilities, more flexibility
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
Plug-and-play within seconds
Utilizing Pogo Pin tech, the batteries connect wirelessly, fastening easily with clips instead of cables or screws.
Lightweight at only 7.7 lb
Use the extra battery independently to lighten your load
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
A one-time investment that lasts for 10 years
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.
Features
- Expand your RIVER 3 Plus power capacity up to a maximum of 858Wh
- Select between EB300 (286Wh) or EB600 (572Wh) models to suit different power demands
- Includes an extra 140W USB-C input/output port for fast and flexible charging
- Quick Pogo Pin wireless docking—no tools, screws, or cables needed
- Can function independently for reduced weight and increased portability
Specifications
General
- Net Weight: 7.72 lbs
- Dimensions (W x— D x— H): 9.21 in x— 8.82 in x— 4.33 in
Output
- USB-C Port: 5V/9V/12V/15V⎓3A Max, 20V/28V⎓5A Max, 140W Max
- Extra Battery Port: 17.5V-25.5V⎓33A Max
Input
- USB-C Port: 5V/9V/12V/15V⎓3A Max, 20V/28V⎓5A Max, 140W Max
- Extra Battery Port: 17.5V-25.5V⎓14A Max
Battery Details
- Rated Voltage: 22.4⎓
- Rated Capacity: 286Wh 12.8Ah
- Cell Chemistry: LFP (LiFePO4)
- Cycle Life: Maintains 80%+ State of Health after 3000 cycles at 0.5C/0.5C at 25°C (77°F)
- Safety Protections: Over Voltage, Overload, Over Temperature, Short Circuit, Low Temperature, Low Voltage, and Overcurrent Protection
Environmental Conditions
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Optimal Operating Temperature: 68°F - 86°F
-
Charging Temperature: 32°F - 113°F
-
Discharging Temperature: 14°F - 113°F
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Storage Temperature: 14°F - 113°F (Optimal: 68°F - 86°F)
Warranty
Energy Systems Central Stores is an authorized retailer of EcoFlow products. Because of this, we pass on EcoFlow's manufacturer 5-Year warranty to you.
Key Specs
- Capacity: 286Wh
- Battery Chemistry: LFP
- Nominal Voltage: 22.4V
- Compatible Systems: EcoFlow RIVER 3 Plus
Choosing the right retailer matters, especially for critical power and off-grid systems. Here’s what sets Energy Systems Central apart.
- Free Shipping Nationwide: Transparent pricing with no hidden fees at checkout.
- Best Price Assurance: If you find the same product offered for less, we’ll review and match it where applicable.
- Easy 30-Day Returns: Clear, straightforward return policies designed for peace of mind.
- Expert-Led Support: Speak directly with knowledgeable specialists who understand the products. Call us at 888-332-7989.
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QUESTIONS
Yes. We provide free standard shipping on all orders shipped within the United States. Shipping costs are included in the listed price with no hidden fees at checkout.
Most orders are processed within 1 to 2 business days. Delivery times typically range from 3 to 7 business days depending on your location, carrier scheduling, and product size.
We offer a 30 day return window for eligible products that are unused and in original condition. Our support team will guide you through the return or exchange process if needed.
Absolutely. Yes. Our knowledgeable product specialists are available by phone, live chat, or email to help you select the right equipment for your application.
Most products include a manufacturer warranty, typically starting at one year. Warranty terms vary by brand and model and are listed on each product page.
Yes. We are an authorized retailer and only sell brand new, genuine products sourced directly from manufacturers or their approved distributors.
