EcoFlow DELTA Pro Ultra Series Smart Extra Battery

Name: EcoFlow DELTA Pro Ultra Series Smart Extra Battery
Brand: EcoFlow
SKU: EFDELTAPROUXEB
Price: 2399.0 USD
Availability: InStock

BY: EcoFlow

SKU: EFDELTAPROUXEB

| Availability: In stock

$3,299.00

$2,399.00

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EcoFlow DELTA Pro Ultra Series Smart Extra Battery

The EcoFlow DELTA Pro Ultra Series Smart Extra Battery is an expandable LFP battery designed for the EcoFlow DELTA Pro Ultra and DELTA Pro Ultra X systems. With 6,144Wh of additional battery capacity, plug-and-play setup, and EcoFlow app monitoring, this smart extra battery helps extend backup runtime for home power, emergency preparedness, and energy storage applications. It uses EV-grade LFP cells, dual BMS protection, and a 3-level safety architecture for dependable long-term performance.

EcoFlow DELTA Pro Ultra Series Smart Extra Battery Features

6,144Wh Expandable Capacity - Adds 6,144Wh of extra battery capacity to a compatible EcoFlow DELTA Pro Ultra or DELTA Pro Ultra X system, helping extend backup runtime for essential devices and home circuits.

Compatible with DELTA Pro Ultra and DELTA Pro Ultra X - Designed to work with DELTA Pro Ultra and DELTA Pro Ultra X Inverters, making it a flexible expansion battery for EcoFlow’s larger home backup platform.

Plug-and-Play Setup - The battery connects directly to a compatible EcoFlow inverter without complicated setup, allowing users to expand system capacity more easily.

Smart App Monitoring - Use the EcoFlow app to monitor and manage the smart extra battery as part of a connected DELTA Pro Ultra system.

LFP Battery Chemistry - Built with LFP battery chemistry, designed for long cycle life, improved safety, and dependable performance for backup energy storage.

EV-Grade Battery Safety - Features EV-grade LFP cells, dual BMS protection, and a 3-level safety architecture to support safer long-term energy storage.

IP54 Protection Rating - The battery is listed with an IP54 dustproof and splashproof rating, helping protect the system in supported installation environments.

Expandable Home Backup Storage - A single DELTA Pro Ultra unit supports up to 30kWh with 5 DPU batteries, allowing customers to scale storage as their backup needs grow.

EcoFlow DELTA Pro Ultra Series Smart Extra Battery Applications

Home backup power – expands stored energy for essential circuits, appliances, and outage protection.
DELTA Pro Ultra expansion – adds 6,144Wh of capacity to compatible DELTA Pro Ultra systems.
DELTA Pro Ultra X expansion – works with DELTA Pro Ultra X Inverters for additional backup runtime.
Emergency preparedness – supports longer-lasting power during storms, outages, and grid interruptions.
Energy storage systems – helps store power for residential backup and energy management setups.
Scalable battery banks – supports larger EcoFlow backup configurations when paired with compatible inverters and accessories.
App-monitored backup systems – allows users to monitor battery status through the EcoFlow app.

What's Included

Everything you need is included with your product.

EcoFlow DELTA Pro Ultra Series Smart Extra Battery
EcoFlow Battery Connection Cable, 0.2 m / 0.65 ft

1 x User Manual & Warranty Card

Warranty

5 years Warranty

EcoFlow DELTA Pro Ultra Series Smart Extra Battery Specifications

Specification	Details
Model	EFYJ751-BP
Net Weight	Approx. 50.5 kg (111.3 lb)
Dimensions	Approx. 660 × 455 × 204 mm (26 × 18 × 8 in.)
Capacity	102.4V⎓60A 6,144Wh
Cell Material	LFP（LiFePO4）
Protection Type	Overvoltage protection, Overload protection, Overtemperature protection, Short circuit protection, Low temperature protection, Low voltage protection, Overcurrent protection
Operating Temperature	－20℃ to 45℃ (－4℉ to 113℉)
Storage Temperature	－20℃ to 45℃ (－4℉ to 113℉)
Operating Humidity	＜90%
Altitude	＜3000m

Frequently Asked Questions

What is the capacity of the EcoFlow DELTA Pro Ultra Series Smart Extra Battery?

The EcoFlow DELTA Pro Ultra Series Smart Extra Battery adds 6,144Wh of battery capacity to a compatible system.

What systems is this battery compatible with?

It is compatible with EcoFlow DELTA Pro Ultra and EcoFlow DELTA Pro Ultra X Inverters.

What battery chemistry does it use?

It uses LFP battery chemistry, designed for long cycle life and safer energy storage performance.

Can this battery be monitored through the EcoFlow app?

Yes. The battery can be monitored and managed through the EcoFlow app when connected to a compatible EcoFlow system.

Is this battery plug-and-play?

Yes. EcoFlow lists this smart extra battery as plug-and-play without setup when used with compatible DELTA Pro Ultra systems.

How many batteries can be used with one DELTA Pro Ultra unit?

A single DELTA Pro Ultra unit can expand up to 30kWh with 5 DPU batteries.

What is the IP rating?

The battery has an IP54 rating for dustproof and splashproof protection.

What are the battery dimensions?

The battery measures 660 x 455 x 204 mm / 26 x 18 x 8 in.

How much does the battery weigh?

The battery weighs 50.7 kg / 111.8 lb.

What warranty does it include?

The EcoFlow DELTA Pro Ultra Series Smart Extra Battery includes a 5-year warranty.

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