In Stock
EcoFlow Delta Pro Smart Extra Battery
Item Code: DELTAProEB
Ship Weight: 85 lbs.
Regular Price: $2,499.00
Sale Price: $2,199.00
You Save 12% ($300.00)
Product Details
The EcoFlow Delta Pro Smart Extra Battery connects with a Delta Pro to double total capacity to 7200Wh. Connect two to the Delta Pro for a staggering 10.8kWh to use off-grid.
Powerful, Lightweight Energy Expansion:
Massive Expansion Capabilities:

Flow Charge & Multi-Charge Technology:

EcoFlow Delta Pro Ecosystem:

EcoFlow Smart Generator:

Powerful, Lightweight Energy Expansion:
• | Designed specifically for use with the Delta Pro Power Station for Doubling 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! |
• | Double or triple the capacity of your DELTA Pro to 7.2kWh or 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. |

• | The EcoFlow Delta Pro ecosystem stores energy day and night, reducing your reliance on the grid and lowering your energy bills by combating time-of-use rates. It integrates directly with your home using the EcoFlow Smart Home Panel. |
• | The EcoFlow app gives you a smart breakdown of your energy habits, and you can customize your energy usage for any type of situation. |
• | The new EcoFlow Smart Home Panel is the heart of the Delta Pro home battery ecosystem. It integrates up to two Delta Pro units with 10 home circuits. Each Delta Pro can be connected with extra batteries, solar panels, or smart generators, giving you uninterrupted power during blackouts, smart energy management for your critical loads, and lower energy bills. |
• | With a fast 20ms switchover time, the Delta Pro and the Smart Home Panel can keep you powered on during a blackout. All the while, the EcoFlow app keeps you in the know, letting you select and modify your device priorities. |

• | When the going gets tough and you’re out of charge options, get a 1800W DC fast charge with EcoFlow Smart Generator (sold separately). Just plug the generator directly into your extra battery via the port on the back. This works even when disconnected from your Delta Pro. |
• | Compared to a traditional gas generator, the EcoFlow Smart Generator delivers less energy loss, faster charging and higher efficiency. |

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:
• (1) EcoFlow Delta Pro Smart Battery
• (1) User manual
• (1) Delta Pro Extra Battery Cable
• (1) Handle Cover
• (1) EcoFlow Delta Pro Smart Battery
• (1) User manual
• (1) Delta Pro Extra Battery Cable
• (1) Handle Cover
Related Items
Review Summary
4.8
6 Reviews
5
83% (5)
4
17% (1)
3
0% (0)
2
0% (0)
1
0% (0)
100% Recommend this product (6 of 6 responses)
By Doug
Winter Springs, FL
Easy to connect & charge quickly
April 7, 2023
This unit connected easily and intuitively to my Delta EcoFlow Pro, doubling it's capacity. Once connected, it charged very quickly.
Integrated seamlessly with my Delta Pro in the app.
Charged quickly
These combined units will be used for emergency power during hurricane season in combination with the 400 watt solar panel.
By Phil
West Virginia
Eco flow Delta Pro Extra smart battery
February 26, 2023
Excellent service and great price for a new unit! Highly recommend!
By John
Massachusetts
Great Prices, Great Company
December 15, 2022
Ordered 2 EcoFlow Delta Pro Spare Batteries. They were cheaper than anyone else, provided the same incentive that ECO Flow did as well. Items came quickly and in great condition. I will be buying future Solar related items from them in the future.
- Quality, Brand New Products
- Quick Shipping
- Great Prices
Home House Backup System
By Kyndl
, Oakley California
I had a Problem
December 14, 2022
I had a problem understanding something. I call Tech support and they Answered my questions. I will never buy from anyone else. This people are AWESOME!!!
System works great
None
Camping with this is wonderful
By Richard
Henderson, KY
Worked as expected
November 12, 2022
As many reviews and comments everywhere have said I wish the connecting cable was longer. Really extended the run time. Used to run camper while I did work around it and charged up batteries on camper.
Longer run time. No worry of running out of power
That short cable again.
For making sure you got the extended run time and can capture more solar power to use
James Patenaude
from 01038 asked:
August 6, 2022
are all eco flow extra batteries made of lithium iron phosphate chemistry?
1 Answer
All of the Ecoflow Delta Pro Expansion Batteries are made of LFP. Thank you for your inquiry!
Submitted by:
Earthtech Products
on August 8, 2022
John Frederic
from Stayton Or asked:
April 1, 2022
Is Earthtechproducts an authorized EcoFlow reseller?
1 Answer
Yes, Earthtech Products is an authorized reseller of EcoFlow products. Thank you for your inquiry!
Submitted by:
Earthtech Products
on April 4, 2022