EcoFlow DELTA Pro Smart Extra Battery 3600Wh

At a Glance

• 3600Wh additional battery capacity
• Long-life LFP / LiFePO₄ battery chemistry
• Compatible with EcoFlow DELTA Pro
• Compatible with EcoFlow DELTA Pro 3
• Supports up to two Smart Extra Batteries with DELTA Pro
• LCD status display
• EcoFlow App monitoring when connected to a compatible power station
• Charges and discharges together with the connected DELTA Pro system
• Smart Generator charging support
• 3,500 cycles to 80% battery capacity
• 6,500 cycles to 50% battery capacity
• Approx. 38kg
• Extra Battery Cable included
• 24-month warranty plus 36-month extension with registration

Short Description

The EcoFlow DELTA Pro Smart Extra Battery adds 3600Wh of additional LFP battery capacity to a compatible EcoFlow DELTA Pro or DELTA Pro 3 power system.

Designed for extended home backup, off-grid power and longer runtimes, the battery connects directly to the compatible power station and charges and discharges together with the main system.

Why Choose the EcoFlow DELTA Pro Smart Extra Battery?

Add 3600Wh of Capacity

Each DELTA Pro Smart Extra Battery adds:

3600Wh / 3.6kWh

of additional battery capacity to a compatible EcoFlow power system.

Expand Your DELTA Pro

The original EcoFlow DELTA Pro supports up to:

2 × DELTA Pro Smart Extra Batteries

This allows significantly longer runtime for home backup, professional equipment and off-grid applications.

Long-Life LFP Battery

The DELTA Pro Smart Extra Battery uses:

LFP / LiFePO₄ Battery Chemistry

Battery cycle life:

3,500 cycles to 80% capacity
6,500 cycles to 50% capacity

Smart Battery Management

When connected to a compatible DELTA Pro system, the Smart Extra Battery charges and discharges together with the main power station.

Battery levels are managed across the connected system for simple day-to-day operation.

LCD Display

The integrated LCD display provides key battery information including:
• Remaining battery percentage
• Remaining charge or discharge time
• Input power
• Output power
• Battery warnings
• Temperature warnings
• Error information

EcoFlow App Monitoring

When connected to a compatible EcoFlow power station, battery information can be monitored through the EcoFlow App.

Smart Generator Support

The Smart Extra Battery can be connected directly to a compatible EcoFlow Smart Generator for charging.

This allows the extra battery to be charged using the Smart Generator even when it is disconnected from the DELTA Pro power station.

Best For

• Home backup expansion
• Extended load-shedding support
• Longer refrigerator and freezer runtime
• Home-office backup
• Networking equipment
• NAS and server equipment
• Professional equipment
• Caravans and RVs
• Off-grid applications
• Mobile businesses
• Emergency backup systems
• Longer DELTA Pro runtime

Product Description

The EcoFlow DELTA Pro Smart Extra Battery is a 3600Wh expansion battery designed to increase the available energy storage of compatible EcoFlow DELTA Pro systems.

3600Wh Additional Capacity

Battery capacity:

3600Wh / 3.6kWh

Adding an extra battery increases available runtime without requiring a second standalone portable power station.

DELTA Pro Compatibility

The Smart Extra Battery is designed for compatible:

EcoFlow DELTA Pro

The original DELTA Pro supports connection of up to two Smart Extra Batteries.

DELTA Pro 3 Compatibility

EcoFlow South Africa also lists the DELTA Pro Smart Extra Battery as compatible with:

EcoFlow DELTA Pro 3

Use the correct EcoFlow connection equipment for the intended system configuration.

Synchronized Charging & Discharging

When connected to a compatible DELTA Pro power station, the main unit and Smart Extra Battery charge and discharge together.

This helps maintain balanced battery levels across the connected system.

Multiple Charging Options

When connected to DELTA Pro, the Smart Extra Battery benefits from the charging methods supported by the main power station, including:
• AC charging
• Solar charging
• Vehicle charging
• Smart Generator charging
• Compatible EV charging solutions

Smart Generator Direct Charging

The DELTA Pro Smart Extra Battery can also connect directly to a compatible EcoFlow Smart Generator.

This provides an additional charging option for emergency, remote and off-grid applications.

Integrated LCD Display

The front LCD display provides clear battery-status information without requiring the app.

Portable Expansion Design

Dimensions:

635 × 285 × 416mm

Weight:

Approx. 38kg

Integrated wheels and handle design help with repositioning despite the large battery capacity.

Key Features

• 3600Wh Capacity: Adds 3.6kWh of battery storage to a compatible system.
• LFP Battery: Long-life lithium iron phosphate battery chemistry.
• 3,500-Cycle Life: Rated to retain 80% battery capacity after 3,500 cycles.
• 6,500 Cycles to 50%: Extended long-term battery lifespan.
• DELTA Pro Compatible: Designed as an expansion battery for EcoFlow DELTA Pro.
• DELTA Pro 3 Compatible: Listed by EcoFlow South Africa for compatible DELTA Pro 3 use.
• Dual-Battery Expansion: DELTA Pro supports up to two Smart Extra Batteries.
• Synchronized Operation: Charges and discharges with the connected main power station.
• LCD Display: View battery status directly on the unit.
• App Monitoring: Monitor compatible battery information through the EcoFlow App.
• Smart Generator Support: Supports direct charging from a compatible EcoFlow Smart Generator.
• Extra Battery Cable Included: Connection cable supplied in the box.
• Expandable Backup Power: Ideal for longer home, business and off-grid runtime.

Specifications

Compatibility

EcoFlow DELTA Pro

Compatible with:

EcoFlow DELTA Pro

Up to two DELTA Pro Smart Extra Batteries can be connected to one DELTA Pro system.

EcoFlow DELTA Pro 3

Also compatible with:

EcoFlow DELTA Pro 3

Use the correct EcoFlow battery connection equipment for the required configuration.

Standalone Use

The DELTA Pro Smart Extra Battery is an expansion battery and is not designed to operate as a standalone portable power station.

It must be connected to a compatible EcoFlow system for normal power-station operation.

Smart Generator

Direct charging using a compatible EcoFlow Smart Generator is supported.

What’s in the Box

• 1 × EcoFlow DELTA Pro Smart Extra Battery
• 1 × DELTA Pro Extra Battery Cable
• 1 × Handle Cover
• User Manual & Warranty Card

Warranty

24-Month EcoFlow Limited Warranty

An additional 36-month warranty extension is available with qualifying warranty registration, providing up to 60 months total warranty coverage.

Sustainability

The DELTA Pro Smart Extra Battery uses long-life LFP / LiFePO₄ battery chemistry, rated for 3,500 cycles to 80% capacity.

Its modular expansion design allows additional energy storage to be added to a compatible EcoFlow system without replacing the main power station.