EcoFlow Delta Pro 3600Wh Extra Battery
Orders processed and shipped out in 5-7 business days
Covered by the full 12-month EcoFlow 
100-day free 
Request a free EcoFlow Delta Pro 3600Wh Extra Battery is backordered and will ship as soon as it is back in stock.
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Description
Description
EcoFlow DELTA Pro Smart Extra Battery 3600Wh – Expandable Energy Storage for Home, RV, and Emergency Power
The EcoFlow DELTA Pro Extra Battery is the perfect companion to your DELTA Pro, adding an extra 3600Wh of capacity to keep essential appliances, RV systems, or home circuits powered for longer.
You can connect up to two Extra Batteries to one DELTA Pro to expand your total storage to 10.8kWh—ideal for extended blackouts, off-grid living, or reducing reliance on the grid.
With advanced LFP (LiFePO₄) battery chemistry, you get up to 3,500 cycles to 80% capacity and 6,500 cycles to 50%, giving you around 10 years of dependable daily use.
The plug-and-play setup means there’s no installation required—just connect it to your DELTA Pro and manage everything from the EcoFlow app.
This Extra Battery also shares the DELTA Pro’s charging capability.
Once connected, the system charges and discharges in sync, using all the same fast-charging methods including AC, solar, EV charging, and Smart Generator input—up to 6500W MultiCharge when part of a complete setup.
Not only does it expand runtime, but it also provides better value. When fully built out to 10.8kWh, this system costs up to 30% less than a single portable power station of equivalent capacity.
Features and Benefits
- Adds 3600Wh of capacity to your EcoFlow DELTA Pro
- Expandable up to 10.8kWh with two extra batteries
- LFP battery chemistry with up to 6500 cycles for long-term reliability
- Plug-and-play connection with automatic syncing and app control
- Shares all DELTA Pro charging methods, including up to 6500W MultiCharge
- 10-year lifespan based on 3000+ full cycles to 80% capacity
- Up to 30% more affordable than buying a power station of the same size
- Built-in BMS ensures safe charging and discharging
- Backed by a comprehensive 5-year warranty
Specifications
Specifications
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Capacity
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Technical Specifications
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Weight
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Dimensions
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Colour
Delivery
Delivery
All orders are shipped from Australia with fast shipping from trusted couriers & order tracking notifications sent via SMS and email.
Complementary shipping insurance included at no extra cost.
Orders processed and shipped out in 5-7 business days
Delivered via courier 3-10 days
Pickup unavailable for this product
Note: Shipping charges apply per shipment and may vary depending on the warehouse location or supplier.
View our shipping policy for full delivery details.
Our customer support team is here to help with any delivery concerns.
Finance Options
Finance Options
Your Details Are Safe
We ensure secure processing of your payment information and do not retain or have any access to your credit card details.
Lifetime Support
Eco Off Grid customers get free lifetime product support from our experts.
Need help? Call us anytime 1300 676 523
EcoFlow Delta Pro 3600Wh Extra Battery Reviews
Frequently Asked Questions
Is the Delta Pro Extra Battery compatible with other EcoFlow power stations?
Is the Delta Pro Extra Battery compatible with other EcoFlow power stations?
No, this extra battery is specifically designed to work with the EcoFlow DELTA Pro. It’s not compatible with other EcoFlow models, so make sure you're pairing it with the correct unit.
What’s the maximum number of extra batteries I can add to a DELTA Pro?
What’s the maximum number of extra batteries I can add to a DELTA Pro?
You can connect up to two Smart Extra Batteries to a single DELTA Pro, expanding your total energy storage from 3.6kWh to 10.8kWh for longer runtimes.
Can I charge the extra battery without connecting to a power station?
Can I charge the extra battery without connecting to a power station?
Yes, you can use a Smart Generator to charge an extra battery, even if it’s not connected to a power station. But for all other charging methods, the battery must be plugged into a power station.
What is your returns policy?
What is your returns policy?
We know how crucial it is to find the perfect products for your access needs. To ensure you shop confidently, we proudly offer 100-day Free Returns on eligible products.
If you need to return your product, we'll organise and cover the return shipping costs across Australia without any restocking fees or hidden costs.
You'll have the option for a store credit, a full refund, or an exchange when the returned products meet the return criteria:
- The products cannot be used, damaged or modified and must be returned in the original packaging materials.
- Some products, such as almost new, made-to-order, installed, and custom-made products, aren't eligible for return.
- The 100-Day period begins from the day that your order is delivered or picked up.
- Only valid for the original purchaser.
- Only valid for online sales via ecooffgrid.com.au.
- Refunds, store credits or item swaps apply only to the cost of the products. Installation fees and original shipping costs will not be refunded.
Find our more by visiting our Refund Policy page.
How long will it take to receive my order?
How long will it take to receive my order?
We understand your eagerness to start your eco-friendly journey. That's why we endeavor to dispatch your order within 24 hours, business efficiency at its best. A confirmation email, complete with tracking details, will follow, allowing you to monitor your package's progress towards its new sustainable home.
What is the warranty on EcoFlow items?
What is the warranty on EcoFlow items?
Eco Off Grid only works with well-known, industry-leading manufacturers such as EcoFlow. All products come with a minimum 12-month warranty.
Minor scratches and blemishes may be visible upon receipt of your item. However, if the item is delivered damaged please contact us immediately.
How can I learn more?
How can I learn more?
Here are some hand selected articles we think you'll find useful:
Or if you have further questions, check out our FAQ Page.
