In Stock
EcoFlow Delta Pro Smart Extra Battery - 2 Pack
Item Code: DELTAProEB-2X
Ship Weight: 170 lbs.
Regular Price: $4,998.00
Sale Price: $2,098.00
You Save 58% ($2,900.00)

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Product Details
The EcoFlow Delta Pro Smart Extra Battery - 2 Pack connects with a Delta Pro to triple total capacity to 10,800Wh. The Delta Pro’s Smart Extra Battery benefits from all the charging methods Delta Pro has, including 6500W MultiCharge. That means you can charge anytime, anywhere as long as your extra battery is connected to DELTA Pro. Once connected, they’ll charge/discharge in unison, keeping the battery percent level across both units.
Powerful, Lightweight Energy Expansion:
Massive Expansion Capabilities:

Flow Charge & Multi-Charge Technology:

Powerful, Lightweight Energy Expansion:
| • | Designed specifically for use with the Delta Pro Power Station for Tripling your Storage Capacity! |
| • | Requires no gas and emits no pollution. |
| • | Informative LED Screen displays watt input/output and remaining run time. |
| • | The Delta Pro’s Smart Extra Battery benefits from all the charging methods the Delta Pro has, including 6500W Multi-Charge! |
| • | Triple the capacity of your DELTA Pro to 10.8kWh. That will give you days of power for your essential appliances! |
| • | EcoFlow’s battery management system provides real-time analysis and regulation of voltage, current, and temperature. This unique protection mechanism makes the Delta Pro Expansion Battery an incredibly safe and efficient home battery. |

| • | The Delta Pro’s Smart Extra Battery benefits from all the charging methods the Delta Pro has, including 6500W MultiCharge. That means you can charge anytime, anywhere as long as your extra battery is connected to the Delta Pro. Once connected, they’ll charge/discharge in unison, keeping the battery percent level across both units. |
| • | EcoFlow’s Flow Charge charging technology isn't just fast, it's safe too. The battery management system ensures safety and longevity while you fully charge The Delta Pro Expansion Battery from a standard AC wall outlet in 1.8 hours. |
| • | For the first time ever with a portable power station, you can charge up at thousands of EV stations worldwide. This unique charging method gives you up to 3000W fast charging on the go. |
| • | Multi-Charge delivers record-breaking speeds at 6500W. To reach 6500W, you can opt for the below charging methods. |

Specifications
| General Information | |
| Manufacturer Name: | EcoFlow |
| Dimensions: | 25" x 11.2" x 16.4" in |
| Weight: | 84 lbs |
| Operating usage temp: | 32-113 F (0-45 C) |
| Warranty: | 24 Month Warranty - Additional 36 Month Warranty Available Upon Product Registration | Battery |
| Cell Type: | LFP |
| Capacity: | 3600 Wh |
| Shelf-life: | 1 Year (after fully charging) |
| Cycle Life: | 6,500 cycles to 50% capacity, 3,500 cycles to 80% capacity |
What's Included
What's Included:
• (2) EcoFlow Delta Pro Smart Battery
• (2) Delta Pro Extra Battery Cable
• (2) Handle Cover
• (1) User manual
• (2) EcoFlow Delta Pro Smart Battery
• (2) Delta Pro Extra Battery Cable
• (2) Handle Cover
• (1) User manual
Related Items
Review Summary
5.0
3 Reviews
5
100% (3)
4
0% (0)
3
0% (0)
2
0% (0)
1
0% (0)
100% Recommend this product (3 of 3 responses)
By DUSTIN
Effingham
Delta pro extra battery
July 18, 2025
Works great. Extended my use time for my rv fridge to 24hrs with the delta pro. Connected nicely and synced automatically
Pros
- Provides good expansion, has a place for extra cords or manual in top compartment, is well built as all ecoflow products
Best Uses
- With exoflow original equipment for it is a smart battery system and management
Cons
- No USB ports, no way to plug in wall directly or solar for charging without the delta pro
By Ken
Mississippi
Seem to be working well through first few tests.
July 17, 2025
Will test on long road trip in Rocky Mountains
Pros
- Runs A/C well.
Cons
- Too early to tell.
Dave Maguire
from Omaha, Nebraska asked:
April 8, 2025
It appears these are not refurbished. I do not understand the shelf life - 1 year after being charged. Love the price for the pair. Have these smart batteries been in stock for a while?
Please, don't take offense to my questions. I truly am not meaning to offend anyone!
I just purchased a EcoFlow Delta Power Pro and want to get the batteries to add to it.
Thank you in advance for your time! It is greatly appreciated.
Dave Maguire
1 Answer
Correct, we do not sell any open box products. Shelf life is simply referring to how long it should be left without checking the charge level/giving it a quick recharge. It doesn't speak to the lifespan of the product.
LFP batteries typically start to degrade and simply hold less of a charge after about 5-10 years. (they will still operate, just less efficiently).
Thank you for your inquiry!
Submitted by:
Earthtech Products
on April 9, 2025









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