EcoFlow DELTA 3 1024Wh Smart Extra Battery
EcoFlow DELTA 3 1024Wh Smart Extra Battery additional 1EcoFlow DELTA 3 1024Wh Smart Extra Battery additional 2EcoFlow DELTA 3 1024Wh Smart Extra Battery additional 3EcoFlow DELTA 3 1024Wh Smart Extra Battery additional 4EcoFlow DELTA 3 1024Wh Smart Extra Battery additional 5
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£458.33 ex VAT£550.00 inc VATWas: £550.00 ex VAT

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Description

The EcoFlow DELTA 3 Series Smart Extra Battery is the ideal add-on upgrade for expanding the capacity and runtime of your EcoFlow DELTA 3 or DELTA 3 Plus Portable Power Station. Designed for seamless integration, this smart extra battery adds an additional 1024Wh of energy storage, increasing your total system capacity to an impressive 2048Wh for longer-lasting portable power at home, on the road, or off-grid.

Perfect for camping, caravanning, emergency backup power, remote working, and outdoor adventures, the DELTA 3 Extra Battery allows you to run appliances, electronics, tools, and essential devices for extended periods without interruption. Its simple plug-and-play design ensures fast setup, while smart connectivity through the EcoFlow app lets you easily monitor performance, battery levels, and system status directly from your smartphone.

Built using advanced LiFePO4 (Lithium Iron Phosphate) battery technology, the EcoFlow DELTA 3 Extra Battery delivers outstanding durability, safety, and long-term reliability. Offering over 4000 charge cycles, it is engineered to provide up to 10 years of daily use before reaching 80% of its original capacity. The enhanced thermal and chemical stability of LFP battery chemistry also provides greater peace of mind and improved operational safety.

Download the EcoFlow app to monitor battery performance and charging status in real-time, adjust settings for optimal energy usage, track usage patterns to extend battery life, and manage your power system with ease.

What’s In The Box: 1x EcoFlow DELTA 3 Extra Battery, 1x EcoFlow DELTA 3 Extra Battery Cable, Manual & Warranty Card.

Compatibility: EcoFlow DELTA 3, EcoFlow DELTA 3 Plus & EcoFlow DELTA 3 1500 Portable Power Stations.

  • Adds an extra 1024Wh of capacity to EcoFlow DELTA 3 & DELTA 3 Plus
  • Expands total system capacity up to 2048Wh
  • Advanced LiFePO4 battery technology for enhanced safety & reliability
  • Delivers over 4000 charge cycles for long-lasting performance
  • Designed for up to 10 years of daily use
  • Compact & lightweight portable design
  • Plug-and-play setup for quick & easy connection
  • Smart monitoring & control via the EcoFlow app
  • Ideal for home backup, camping, travel, off-grid power & emergency use
  • Backed by a comprehensive 5-year warranty

Technical Specifications:

  • Size: (WxDxH): Approx. 397.6mm x 202mm x 198mm
  • Weight: 9.6kg
  • Output (Extra Battery Port): 40V-58.4V⎓48A Max
  • Input (Extra Battery Port): 40V-58.4V⎓24A Max
  • Battery Info:
    • Rated Capacity: 1024Wh (51.2V⎓20Ah)
    • Cell Chemistry: LFP (LiFePO₄)
    • Cycle Life: 80%+ capacity after 4000 cycles
  • Optimal Operating Temperature: 20°C-30°C (68°F-86°F)
  • Charge Temperature: 0°C-45°C (32°F-113°F)
  • Discharge Temperature: −10°C to 45°C (14°F-113°F)
  • Storage Temperature: −10°C to 45°C (14°F-113°F)

Built-in protection features include over voltage protection, overload protection, over temperature protection, short circuit protection, low temperature protection, low voltage protection, and overcurrent protection for safe and reliable operation.

Please note, the extra battery itself is not a standalone power station and cannot be independently controlled via the app. An EcoFlow Portable Power Station is not included with this Extra Battery.

Code: EFDELTA3P-EB

DELIVERY INFORMATION

Fast, reliable UK delivery

  • FREE UK delivery (2–3 working days) on orders over £99 exVAT (order before 4pm)*.
  • Orders under £99 exVAT are charged £6 inc VAT (£5 exVAT).
  • Need it quickly? Choose from our Next Working Day & Saturday delivery options below (order before 2pm).

Delivery options & rates

Delivery OptionDelivery TimeCost
Standard Delivery2-3 working days£6.00 (£5.00 exVAT)
FREE Standard Delivery (orders over £99 exVAT)*2-3 working daysFREE
Next Working Day Delivery (order before 2pm)Next working day£9.99 (£8.33 exVAT)*
Next Working Day by 12pm  (order before 2pm)Next working day£20.00 (£16.67 exVAT)
Next Working Day by 10:30am  (order before 2pm)Next working day£21.60 (£18.00 exVAT)
Saturday Delivery  (order before 2pm Friday)    Next working day£20.00 (£16.67 exVAT)
Northern Ireland, Highland  & Islands Delivery  3-5 working days£9.99 (£8.33 exVAT)

Important: Orders placed after 2pm on Friday (or over the weekend) are processed on Monday for next working day delivery. Next Day & Saturday Delivery options NOT available on all products.

*FREE Standard & Next day delivery available on select products and will be clearly shown on the product page.


What to expect

  • We dispatch Monday - Friday (excluding public holidays).
  • Once dispatched, you’ll receive tracking information (where available).
  • If delivery is delayed for any reason, we’ll contact you as soon as possible with an updated estimate.

Please note: we cannot be held responsible for missed deliveries. Customers are advised to check their spam or junk folder to ensure tracking information and estimated delivery details are received.


Specialist product delivery

Some products require specialist handling:

  • For Portable power please allow up to 4 working days for delivery.
  • Solar panels are shipped via our £100 pallet delivery service.
  • In some cases a third-party supplier may fulfil your order directly.

Delivery areas & restrictions

  • Northern Ireland, Scottish Highlands & Channel Islands: please contact us for shipping rates.
  • Portable power to Northern Ireland: we can’t currently ship these items due to insurance issues with the courier.
  • International delivery: unfortunately we do not currently offer international shipping.

Questions, problems, or returns?

RETURN POLICY

Last updated May 23, 2024

Thank you for your purchase, we hope you are happy with it.

However, if you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund, store credit, or an exchange; please see below for more information on our returns policy.

RETURNS

If you find you have received the wrong or damaged item(s), you need to contact us within 7 days of receipt of goods. Any time after this you are responsible for returning the goods at your own cost following the standard returns process.

All returns must be postmarked and in writing within fourteen (14) days of the purchase date. All returned items must be in a new, unopened and unused condition, with all original tags and labels attached.


RETURN PROCESS

To return an item, please click the ‘Download Returns Form’ below and complete all data fields. You can then email this to our team once completed.
Place your item(s) securely in its original packaging along with the returns form.
Please note that the RMA# on the returns address is your original order number; please ensure to reference this on the returns address, as per below.
You are now ready to mail your return to the following address:

Attn: Returns
RMA #/Order No -
Eco WizardUnderfloor Wizard Ltd t/a ECO Wizard
Beechfield House
Winterton Way
Macclesfield
Cheshire
SK11 0LP
United Kingdom

We ask that all customers when returning products send the goods via a trackable courier service. Underfloor Wizard Ltd t/a ECO Wizard will not be held responsible for goods which do not arrive at our premises.

Please note, you will be responsible for all return shipping charges, unless in the instance of damaged/faulty goods received in which case we can issue you with a returns label to cover the cost of postage.

Download Returns Form

REFUNDS

After receiving your return and inspecting the condition of your item, we will process your return or exchange. Please allow at least seven (7) days from the receipt of your item to process your return or exchange. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your return has been processed.

Faults on installed products: 

If a product that has been installed develops a fault, please contact us, do not uninstall the product yourself. We will arrange for an engineer or technical support from the brand to assist with diagnosing the fault. Once the fault has been confirmed we can then arrange for the necessary next steps to occur.


EXCEPTIONS

The following items cannot be returned or exchanged:

  • opened box, damaged, missing or incomplete items cannot be returned.
  • items that have been installed.


QUESTIONS
If you have any questions concerning our return policy, please contact us at: returns@ecowizard.co.uk

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