EcoFlow Delta Pro 3 Smart Extra Battery
Supercharge your DELTA Pro 3 up to 5kWh of storage with up to 4 x 1024Wh Smart Extra Batteries (LFP). World's fastest charging speed.
Supercharge your DELTA Pro 3 up to 5kWh of storage with up to 4 x 1024Wh Smart Extra Batteries (LFP). World's fastest charging speed.
Supercharge your DELTA Pro 3 up to 5kWh of storage with up to 4 x 1024Wh Smart Extra Batteries (LFP). World's fastest charging speed.
Supercharge your DELTA Pro 3 up to 5kWh of storage with up to 4 x 1024Wh Smart Extra Batteries (LFP). World's fastest charging speed.
in 5 offers
The lowest price for EcoFlow Delta Pro 3 Smart Extra Battery right now is $3,999.00 at Harvey Norman, compared across 5 retailers.
The all-time low was $1,950.93 on 31 May 2026 — today's price is 105% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 22 June 2026.
Last updated at 22/06/2026 14:12:14
EcoFlow Delta Pro 3 Extra Battery
EcoFlow Power Delta Pro 3 Extra Battery with 4096Wh (341Ah@12V) Capacity
Free delivery
EcoFlow Delta Pro 3 Extra Battery with 4096Wh (341Ah@12V) Power Capacity - Outback Equipment Australia - Electrical Gear & Accessories
Delivery between 25 June – 6 July $147.50
EcoFlow DELTA Pro 3 Extra Battery with 4096Wh 341AH 12V Power Capacity EFDELTAPRO3-BAT
Delivery between 23 June – 2 July $81.25
Ecoflow 4096wh Extra Battery for Delta Pro 3
Free delivery between 26 June – 3 July
originally posted on wellbots.com
A really nice addition to my pro 3 works as advertised highly recommend.
originally posted on wellbots.com
Very nice fit for my Delta Pro 3. Additional means to recharge it would be nice. It's still a new product to me but I hope it helps me build a better backup power supply to my system.
originally posted on offgridstores.com
The unit is working as expected. The EcoFlow app automatically recognized the additional capacity. I have fully charged the extra battery and will now test by discharging through a couple of circuits.A small bother: The EcoFlow documentation is scanty at best. You will have to go their site for full info. My intended use for the system is emergency backup so I want printed information available. (In an outage I am as likely to lose internet as power.) I'll just have to troll through the support pages and print off necessary info.Delivery was flawless. I had to be home to accept the box; the driver arrived within the assigned time window.Thank you for the excellent service.
| Net Weight | Approx. 33kg |
| Dimension | 69.4x29.5x21.5cm |
| Capacity | 4096Wh |
| Output Port | 40v-58.4v = 11A Max |
| Compatible with | EcoFlow DELTA Pro 3 |
EcoFlow Delta Pro 3 Extra Battery
EcoFlow Power Delta Pro 3 Extra Battery with 4096Wh (341Ah@12V) Capacity
Free delivery
EcoFlow Delta Pro 3 Extra Battery with 4096Wh (341Ah@12V) Power Capacity - Outback Equipment Australia - Electrical Gear & Accessories
Delivery between 25 June – 6 July $147.50
EcoFlow DELTA Pro 3 Extra Battery with 4096Wh 341AH 12V Power Capacity EFDELTAPRO3-BAT
Delivery between 23 June – 2 July $81.25
Ecoflow 4096wh Extra Battery for Delta Pro 3
Free delivery between 26 June – 3 July
A really nice addition to my pro 3 works as advertised highly recommend.
Very nice fit for my Delta Pro 3. Additional means to recharge it would be nice. It's still a new product to me but I hope it helps me build a better backup power supply to my system.
The unit is working as expected. The EcoFlow app automatically recognized the additional capacity. I have fully charged the extra battery and will now test by discharging through a couple of circuits.A small bother: The EcoFlow documentation is scanty at best. You will have to go their site for full info. My intended use for the system is emergency backup so I want printed information available. (In an outage I am as likely to lose internet as power.) I'll just have to troll through the support pages and print off necessary info.Delivery was flawless. I had to be home to accept the box; the driver arrived within the assigned time window.Thank you for the excellent service.
The EcoFlow DELTA Pro 3 Smart Extra Battery is a must-have for anyone needing serious backup power. It adds incredible capacity to my DELTA Pro, keeping my home appliances running during extended outages. The setup was simple, and it performs flawlessly.
This extra battery has made my off-grid system unstoppable. It charges quickly and provides reliable power for days when paired with my DELTA Pro. The build quality is excellent, and itÕs worth every penny for the added capacity.
| Net Weight | Approx. 33kg |
| Dimension | 69.4x29.5x21.5cm |
| Capacity | 4096Wh |
| Output Port | 40v-58.4v = 11A Max |
| Compatible with | EcoFlow DELTA Pro 3 |
