EcoFlow RIVER 3 Plus Extra Battery EB300 – 286Wh Expansion Module
Easily expand your RIVER 3 Plus up to 858Wh
Upgrade your EcoFlow RIVER 3 Plus with a Smart Extra Battery. Choose from the EB300 (286Wh) or the EB600 (572Wh) and stack them one at a time to boost your total capacity to 858Wh. Perfect for growing power needs and longer off-grid use.
More Capacity, More Ways to Power Up
Adding an Extra Battery doesn’t just increase energy storage — it also introduces an additional 140W USB-C port, giving you another way to charge devices or even recharge the RIVER 3 Plus itself.
With USB-C input/output, the Extra Battery can also be used independently, making it a versatile standalone power option.
Fast, Hassle-Free Connection
Setup takes seconds.
EcoFlow’s Pogo Pin technology allows the Extra Battery to wirelessly connect to the RIVER 3 Plus — no cables, no tools, no screws. Simply align, clip, and go.
Lightweight and Portable (Just 3.5 kg)
The EB300 is lighter than the RIVER 3 Plus, making it ideal for portable use.
Its compact size and USB-C ports make it perfect for short outdoor trips where you only need to power a few essential devices.
Durable LFP Battery – 10-Year Lifespan
Built with long-life LiFePO₄ (LFP) technology, the Extra Battery offers the same durability and safety as the RIVER 3 Plus.
Backed by a 5-year warranty, it delivers up to 10 years of reliable performance, making it a solid long-term investment.
FAQs
Is the EcoFlow RIVER 3 Plus EB300 easy to connect to my existing RIVER 3 Plus?
Yes. The EB300 attaches using EcoFlow’s wireless Pogo Pin technology, so no tools, screws, or cables are required. Simply align, clip, and it will connect automatically.
Can I use the EB300 Extra Battery on its own?
Yes. The EB300 includes USB-C input/output ports, allowing it to operate as a standalone power source without being connected to the RIVER 3 Plus.
Is the EB300 suitable for outdoor or frequent use?
Absolutely. The EB300 uses long-life LFP battery technology with a 10-year lifespan and is designed for regular off-grid or outdoor use. It's durable, safe, and built to last.
