Free standard shipping on orders over £49.99 and on select items ( see checkout )
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Orders placed before 1400 will be dispatched the same day
Enhance your energy capacity with the EcoFlow DELTA Max Extra Battery – the perfect expansion for your DELTA Max Portable Power Station. Designed for users who require extended runtime and scalable power solutions, this extra battery delivers reliable performance for home backup, off-grid living, and mobile work environments.
Extended Energy Storage
Adds up to 2kWh of additional capacity to your DELTA Max system, enabling longer use of high-demand appliances and tools.
Seamless Integration
Plug-and-play design allows effortless connection to your DELTA Max unit, with automatic recognition and synchronisation.
Smart Monitoring
Compatible with the EcoFlow app for real-time energy tracking, remote control and system optimisation.
Durable & Portable
Engineered for mobility and resilience, with a compact form factor and reinforced casing for use in varied environments.
Advanced Battery Technology
Utilises long-life LFP (LiFePO₄) cells for enhanced safety, efficiency and sustainability – over 3,000 cycles to 80% capacity.
EcoFlow is a trusted name in portable power innovation, offering scalable energy solutions that combine cutting-edge technology with environmental responsibility. The DELTA Max Extra Battery is a robust, future-ready addition to any power setup.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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