EcoFlow RIVER 3 Max – 572Wh Portable Power Station
572Wh portable power for home essentials, camping and campervan backup.
- Keeps Wi-Fi and phones online
- Easy to move around the home
- 600W output for essentials
- LFP battery for regular backup use
- A practical step below DELTA
Compact EcoFlow backup for Wi-Fi, lighting, laptops and short UK power cuts.
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Is the RIVER 3 Max right for you?
Good fit if you want to:
- Keep Wi-Fi, phones, lighting and laptops available during shorter UK power cuts
- Choose a compact 572Wh backup unit that is easy to move around the home
- Power suitable everyday devices within the 600W AC output rating
- Use one portable setup for home backup, camping and campervan trips
- Recharge between uses from mains and compatible charging options
Consider another setup if:
- You need whole-home backup or fixed installation
- You want to run kettles, heaters, ovens or heavy tools
- You need several high-draw appliances running at the same time
- You need multi-day backup without recharging
- You want a larger expandable DELTA system
What can it power?
Fridge freezer
Keep chilled food protected during interruptions
Estimated 2 hoursWi-Fi router
Keep broadband equipment running where service remains available
Estimated 20–29 hoursLED lighting
Run key low-wattage lighting for extended periods
Estimated 29 hoursLaptop
Power work, study and admin away from mains
Estimated 8 chargesPhones
Keep family phones charged and reachable
Estimated 52 chargesTV
Run a suitable TV during longer outages
Estimated 5 hoursRuntime is estimated and depends on appliance wattage, battery level, operating mode and real-world conditions.
RIVER 3 Max at a Glance
A Closer Look at the RIVER 3 Max
The RIVER 3 Max sits in a useful middle ground. It is more capable than a small USB power bank, but still compact enough to move between the house, car, campervan or garage without feeling like a full home-backup system.
For UK households, it makes most sense as a short-outage essential-power unit: Wi-Fi router, lighting, phone charging, laptop top-ups and selected low-demand devices. For heavier loads such as kettles, heaters, ovens or workshop tools, step up to a larger EcoFlow DELTA system instead.
Its 572Wh capacity, 600W AC output and LFP battery chemistry make it a practical choice for storm planning, travel weekends and everyday backup without fuel, fumes or permanent installation.

Why it works for your setup
Keeps Wi-Fi and phones online
Keep routers, phones and key small devices available during shorter power cuts where broadband service remains active.
Easy to move around the home
Compact enough to move between rooms, store in a cupboard or take out to the car, van or campsite.
600W output for essentials
Built for suitable low-demand devices such as routers, lighting, phones, laptops and small electronics.
LFP battery for regular backup use
Long-life battery chemistry for seasonal storm planning, camping trips and occasional outages.
A practical step below DELTA
More capable than a small power bank without moving into a larger EcoFlow DELTA setup.
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.
Flexible Ways to Pay
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
Is the RIVER 3 Max suitable for UK power cuts?
Yes, for selected essentials within its 600W AC output rating. The 572Wh capacity gives more runtime than the standard RIVER 3 Plus.
What can the RIVER 3 Max realistically power?
It is best for Wi-Fi equipment, phones, lighting, laptops and suitable low-wattage appliances. Check wattage and surge demand before connecting devices.
Can it run kettles, heaters or ovens?
Only if the appliance is within rating, but high-heat appliances drain batteries quickly and are usually a poor use case.
Can it recharge from solar?
Yes. EcoFlow lists up to 220W solar input for the RIVER 3 Plus Series with an 11-55V, 13A input range.
Is this a whole-home backup system?
No. It is a portable power station for selected essentials, not a professionally installed whole-home battery system.










