• 1.02 kWh
  • Increase the capacity of DELTA 3 Plus/DELTA 3 with an extra 1024Wh for extended usage.
  • Enjoy 10 years of daily use with over 4000+ charging cycles, supported by advanced LFP battery chemistry.
  • Plug-and-play design allows seamless integration with DELTA 3 devices. Monitor and control via the EcoFlow app.
  • Compact and lightweight design for easy portability and storage.
  • Covered by a comprehensive 5-year warranty for ultimate peace of mind.

 

Seamless Compatibility

The DELTA 3 Smart Extra Battery is specifically designed to work with the EcoFlow DELTA 3 and DELTA 3 Plus, expanding their capacity to meet growing energy needs. Perfect for powering essential household devices, outdoor adventures, and emergency backup.

When paired with the DELTA 3, this extra battery provides:

  • Expandable capacity to 2048Wh (DELTA 3 or DELTA 3 Plus).
  • Continuous power for 99% of household appliances, including refrigerators, TVs, and computers.
  • Support for X-Boost technology, enabling appliances over 2400W, such as ovens, kettles, and hair dryers.

Smart Monitoring with EcoFlow App

Stay in control with the EcoFlow app. Monitor real-time performance, check battery health, and manage charging and usage preferences right from your smartphone.

Specifications

Feature Details
Capacity 1024Wh
Dimensions 398 × 200 × 198 mm
Weight 9.6 kg (21.2 lb)
Battery Chemistry LFP
Cycle Life 4000 cycles to 80% capacity
Warranty 5 Years
Save: £14

Price Lower Than Manufacturer*

EcoFlow DELTA 3 Smart Extra Battery

Original price was: £549.00.Current price is: £535.00.

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.

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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.