EcoFlow RIVER 3 EB600 Smart Extra Battery
Add 572Wh to RIVER 3 Plus and build a compact EcoFlow setup up to 858Wh.
- 572Wh extra capacity — the larger RIVER 3 Plus battery option
- 858Wh system capacity — official family figure with RIVER 3 Plus
- Wire-free pogo-pin connection — no cable or screws between host and battery
- Stackable design — tidy expansion for small spaces
- 140W USB-C input and output — useful for modern devices and charging flexibility
Use with a compatible main unit. Compatibility should be checked before ordering.
Out of stock
Is this expansion battery right for you?
Good fit if:
- You own or plan to buy RIVER 3 Plus
- You want the larger RIVER extra battery
- You need longer runtime for compact backup
- You want the added 140W USB-C option
Not ideal if:
- You need standalone AC sockets
- You want the lightest expansion choice
- You own a non-compatible EcoFlow station
RIVER 3 EB600 at a Glance
A Closer Look at the RIVER 3 EB600
EB600 is the practical step-up from EB300. It is less about minimum carry weight and more about turning RIVER 3 Plus into a genuinely longer-running compact backup setup.
It still needs the host power station for AC output. Think of it as battery capacity and USB-C flexibility, not a second power station.
Why it works for your setup
572Wh extra capacity
the larger RIVER 3 Plus battery option
858Wh system capacity
official family figure with RIVER 3 Plus
Wire-free pogo-pin connection
no cable or screws between host and battery
Stackable design
tidy expansion for small spaces
140W USB-C input and output
useful for modern devices and charging flexibility
No standalone AC output
depends on the RIVER 3 Plus host
Why Buy From VoltReady™
UK-Based Business
VoltReady is a UK-based portable-power specialist serving customers across the United Kingdom.
Manufacturer Warranty
Products include manufacturer-backed warranty cover, with the exact terms shown clearly on each product page.
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Pay securely by card, Apple Pay, Google Pay, Klarna or Clearpay. Available options depend on your order and eligibility.
UK Customer Support
Get straightforward help before and after your purchase through live chat or email.
Everything important, clearly organised
Key Features
Technical Specifications
What’s in the Box
FAQs
How much capacity does EB600 add?
It adds 572Wh to a compatible RIVER 3 Plus setup.
What capacity can the system reach?
EcoFlow states the RIVER 3 Plus family can expand up to 858Wh with the extra-battery options.
Can EB600 power AC appliances by itself?
No. It is an expansion battery and needs the RIVER 3 Plus host for AC sockets.
How is it different from EB300?
EB600 gives more capacity and runtime. EB300 is lighter and more compact.
Does it add USB-C charging?
Yes. EcoFlow lists an additional 140W USB-C input and output option.
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