
EcoFlow DELTA 3 Series Smart Extra Battery – 1024Wh LFP Expansion Battery
Product Overview
Extend your portable power with the EcoFlow DELTA 3 Series Smart Extra Battery. Featuring 1024Wh of additional energy storage and long-lasting lithium iron phosphate (LFP) battery technology, this expansion battery is designed for compatible EcoFlow DELTA 3 and DELTA 3 Plus power stations. Ideal for home emergency backup, RV travel, camping, and extended off-grid use, it provides additional runtime without replacing your existing power station.
Key Features & Benefits
- 1024Wh Additional Capacity: Expands stored energy for longer operation of compatible household appliances, electronics, and essential devices.
- Compatible DELTA 3 Models: Designed for use with EcoFlow DELTA 3 and DELTA 3 Plus portable power stations.
- Long-Lasting LFP Battery: Lithium iron phosphate battery chemistry provides durability and dependable long-term energy storage.
- Expanded System Capacity: Increases a compatible 1024Wh DELTA 3 or DELTA 3 Plus system to a combined 2048Wh.
- Smart App Monitoring: Monitor battery levels and connected-system performance through the EcoFlow app.
- Convenient Expansion: Adds energy storage without requiring replacement of your compatible main power station.
- Versatile Backup Solution: Ideal for home emergency preparedness, RV travel, camping, and outdoor activities.
Designed for Extended Backup Power
The EcoFlow DELTA 3 Series Smart Extra Battery is an excellent option when your existing power station already meets your appliance wattage requirements but you need additional energy storage. The expanded battery capacity can help keep compatible devices running longer during outages or off-grid activities.
Important: This product increases stored battery capacity only. It does not increase the connected power station's rated AC output or surge rating. Actual runtime depends on connected loads, operating conditions, and energy conversion losses.
Product Specifications
| Brand | EcoFlow |
| Product | DELTA 3 Series Smart Extra Battery |
| Battery Capacity | 1024Wh |
| Battery Chemistry | LiFePO4 (LFP) |
| Compatible Models | EcoFlow DELTA 3 / DELTA 3 Plus |
| Combined Capacity | 2048Wh with compatible 1024Wh main station |
| Battery Monitoring | EcoFlow App via connected station |
| Product Type | Expansion Battery Only |
Compatibility & Important Information
Extra Battery Only: This listing includes the EcoFlow DELTA 3 Series Smart Extra Battery. The main portable power station is sold separately.
Compatible Power Stations: Designed for EcoFlow DELTA 3 and DELTA 3 Plus. Compatibility with DELTA 3 Classic, DELTA 3 Max, DELTA 3 Max Plus, or other similarly named models should not be assumed.
Connection Requirements: Confirm the correct expansion connection, required cable, and any applicable firmware requirements before purchasing.
Not a Standalone Power Station: This extra battery requires a compatible main power station for normal system operation and does not provide independent AC output.
Shipping & Returns
🚚 FREE Shipping: Enjoy free shipping within the contiguous United States. Excludes Alaska, Hawaii, and Puerto Rico.
↩️ 7-Day Returns: Eligible returns must be requested within 7 days of delivery. Return authorization, product condition requirements, and applicable exclusions apply. Please review the return policy before purchasing.
Manufacturer Warranty
🛡️ 5-Year EcoFlow Manufacturer Warranty: The EcoFlow DELTA 3 Series Smart Extra Battery is advertised with a 5-year limited manufacturer warranty, subject to EcoFlow's applicable warranty terms and conditions.
Warranty Coverage: Covers eligible defects in materials and workmanship under normal use according to EcoFlow's warranty requirements.
Warranty Exclusions: Accidental damage, misuse, unauthorized modifications, improper operation, normal wear and tear, and other manufacturer exclusions may not be covered.
Official Warranty Information: View EcoFlow Manufacturer Warranty Policy.
EcoFlow DELTA 3 Extra Battery 1024Wh: more energy storage for delta 3 and delta 3 plus
The EcoFlow DELTA 3 Series Smart Extra Battery adds 1024Wh to a compatible DELTA 3 or DELTA 3 Plus power station. Consider it when the station's output already suits your devices but you want a larger energy reserve.
Key specifications and configuration
- Additional capacity: 1024Wh.
- Designed for EcoFlow DELTA 3 and DELTA 3 Plus.
- LFP battery chemistry.
- Connected-system monitoring in the EcoFlow app; 5-year manufacturer warranty, subject to terms.
Confirm expansion compatibility
This listing is for the extra battery, not the main power station. It expands stored energy rather than the host's output rating. Confirm the host model and connection requirements before ordering. Compatibility should not be assumed for DELTA 3 Classic or other similarly named units.
Pair it with the EcoFlow DELTA 3. Confirm compatibility with the current model and intended setup before ordering. Actual runtime depends on the load and operating conditions.



















