• 245Wh capacity, 300W rated output, X-Boost up to 600W
  • Up to 2x runtime for light-wattage appliances
  • 30% more compact than the industry average
  • <20/10 ms UPS for uninterruptible backup
  • <30 dB whisper quiet for 24/7 use
  • 1-hr fast charging, without battery damage
  • IP54 waterproof-rated battery pack
  • Charge up to 5 appliances at the same time

 

Compact design with powerful performance

Easily extend your outdoor stays and handle power outages with GaN

With groundbreaking X-GaNPower, RIVER 3 taps into superior energy efficiency to extend the operating time of low-wattage devices with a compact design and quieter running volume.

 

30% more compact for on-the-go use

RIVER 3 minimises heat loss, requires less cooling space, and supports a compact design. It easily fits into small spaces like closets, or a bag for easy storage and portability.

AC Charging

RIVER 3 fast-charges in 1 hour with X-Stream, without causing battery damage due to vehicle-grade cells and trickle charge technology.

Solar Charging

Power up RIVER 3 in as fast as 2.6 hours with 110W solar input. Go even more portable with our 45W Portable Solar Panel (Type-C), which folds to the size of a laptop and charges electronics directly.

Car charging

Charge RIVER 3 using your car battery while you drive, making it an ideal choice for on-the-go.

 

Power up to 600W appliances

Your reliable companion in the wild or during an outage

RIVER 3 keeps 90% of your must-have appliances running smoothly with 300W of power. With X-Boost technology, it can power 600W heating devices without breaking a sweat.

LiFePO4 cells, 10-year lifespan

RIVER 3 has a lifespan of 3000 charging cycles. That’s around 10 years of everyday use before its capacity drops to 80%.

Specifications

Capacity: 245Wh

Dimensions: 25.5 x 21.2 x 11.3 cm

Net Weight: 3.55 kg

Battery Chemistry: LiFePO4, 3000 cycles to 80% capacity

UPS: <20 ms

Noise: <30 dB

AC Output:  1 outlets, 300W total (Surge 600W, X-Boost 600W)

USB-A Output: 2 ports, 5V=2.4A, 12W max per port, total 24W

USB-C Output: 1 port, 5/9/12/15⎓3A max, 20V⎓5A Max,100W max per port

Car Output: 1 outlet, 12.6V, 10A, 126W max

AC Input: 200~240V, 3A, 50/60Hz, 305W, 0-100% in 60 min

Solar Input: 11~30V, 8A, 110W, 0-100% in as fast as 2.6 hr

Car Input: 11~30V, 8A, 100W, 0-100% in 2.8 hr

Generator Input: 200~240V, 3A, 50/60Hz, 300W, 0-100% in 60 min

Optimal Operating Temperature: 20℃-30℃ (68°F-86°F)

Charge Temperature: 0℃-45℃ (32°F-113°F)

Discharge Temperature: -10℃-45℃ (14°F-113°F)

Storage Temperature: 20℃-30℃ (68°F-86°F)

Footnote:

The RIVER 3 Series revolutionizes energy efficiency, delivering up to double runtime for light-wattage appliances, extending use at home and in the great outdoors. Data was tested in a controlled laboratory environment and actual user experience may vary.
1. The “double runtime” claim specifically refers to tests using a 3W light or Wi-Fi router.
2. The noise level data is based on laboratory tests conducted at a room temperature of 89.6°F (32°C). Actual use may have slight deviations due to variations in the real environment.
3. The IP54 water-proof rating applies only to the battery pack, not the entire package. It does not prevent water immersion but can prevent fire or explosion in the event of a short circuit if the battery is splashed with water or rain, ensuring user safety and property protection

Save: £6

Price Lower Than Manufacturer*

EcoFlow RIVER 3 Portable Power Station

Original price was: £239.00.Current price is: £233.00.

Runtime Calculator

Enter your battery capacity and appliance wattage – or chose from one of the preset options – to calculate an approximate runtime.

Total Runtime: 0 hours and 0 minutes*
Wh
W

Warning: If the appliance’s power demand (W) exceeds the battery’s capacity (Wh), the charging or powering process on some power stations will not work as expected. Always ensure that the battery’s capacity is sufficient for the appliance’s power requirements before attempting to charge or power it.

*The figures provided by this calculator are indicative only and should be used as a general guide. Actual performance may vary depending on various factors, including the specific conditions of use and the efficiency of your devices.

What is Undertwok, or Under2k?

Well, we are an independent, and local, Retail shop that doubles as a Social media studio and event space. Our shop offers a unique blend of services with a vision to help everyone ‘Live their life under 2 kWh per day’. Our shop seamlessly blends traditional retail with digital innovation, our space serves as both a hub for our Portable Solar Powered products, available to purchase, and a dynamic social media studio. This space provides a platform for creativity to flourish, allowing visitors to not only shop, but also engage and learn about living their lives under 2 kWh per day.

Pop into the shop where we would love to chat over a solar powered pot of tea or coffee.

Ask us a Question

Please enable JavaScript in your browser to complete this form.
Add-Ons
No results found.

Сhat To Us

Chat with our team of Undertwok gurus today! We’re here to guide you on the best products and strategies to live under 2 kWh per day.

Speedy Delivery

Ask us about personal door-to-door home delivery from stock within the local area (RG postcode), or Shipping within 3-5 working days for the rest of the UK.