EcoFlow DELTA 3 Ultra Plus 3072Wh 3600W Portable Power Station

At a Glance

• 3072Wh battery capacity
• 3600W continuous AC output
• 7200W surge output
• X-Boost 3.0 supports selected appliances up to 4700W
• Expandable to approximately 7kWh
• <10ms UPS automatic switchover
• 2300W AC charging input
• 0–80% AC charging in approximately 75 minutes
• 0–100% AC charging in approximately 110 minutes
• Up to 1600W solar input
• Up to 2400W generator charging
• Up to 1000W alternator charging
• LFP / LiFePO₄ battery chemistry
• Automotive-grade full-tab battery cells
• Four 230V AC outlets
• Nine total output ports
• Wi-Fi and Bluetooth connectivity
• Quiet operation from approximately 25dB under specified conditions
• Approximately 33.7kg
• Up to 5-year warranty with eligible EcoFlow App registration

Short Description

The EcoFlow DELTA 3 Ultra Plus is a high-capacity 3072Wh portable power station with 3600W AC output, expandable battery storage, <10ms UPS switchover and multiple fast-charging options for powerful home, business and off-grid backup.

Why Choose This EcoFlow

The DELTA 3 Ultra Plus is designed for customers who need serious backup capacity and high output without moving to a permanently installed battery system.

Its 3072Wh LFP battery provides substantial stored energy, while 3600W continuous AC output can support a wide range of compatible household, office and outdoor equipment.

For selected higher-powered appliances, X-Boost 3.0 supports loads up to 4700W, while the inverter provides surge output of up to 7200W.

Need more runtime? The system can be expanded to approximately 7kWh using a compatible DELTA Pro 3 Smart Extra Battery and the required Smart Extra Battery Expansion Adapter.

Fast AC, solar, alternator and generator charging provide several ways to replenish the battery depending on where and how the system is being used.

Best For

• Extended home backup
• Load-shedding support
• Home offices
• Business backup power
• Networking and IT equipment
• Compatible NAS and server equipment
• Household appliances
• Kitchen equipment within supported limits
• Laundry equipment within supported limits
• Workshop and garage applications
• Camping
• RV and caravan use
• Overlanding
• Farms and remote locations
• Off-grid power
• Solar charging systems
• Users requiring expandable high-capacity backup

Product Description

The EcoFlow DELTA 3 Ultra Plus is a 3072Wh high-capacity portable power station designed for demanding home, office, outdoor and off-grid power requirements.

It delivers 3600W continuous AC output with up to 7200W surge output.

X-Boost 3.0 can support selected compatible appliances rated up to 4700W, providing additional flexibility for higher-powered equipment.

The pure sine wave inverter is designed to provide stable AC power for compatible electronics and appliances.

The DELTA 3 Ultra Plus uses automotive-grade full-tab LFP battery cells together with an intelligent Battery Management System that continuously monitors battery status, health, temperature and other operating conditions.

Capacity can be expanded from 3072Wh to approximately 7kWh using one compatible EcoFlow DELTA Pro 3 Smart Extra Battery together with the required Smart Extra Battery Expansion Adapter.

For rapid recharging, AC input supports up to 2300W and can recharge the battery from 0–80% in approximately 75 minutes and from 0–100% in approximately 110 minutes under suitable conditions.

Solar charging supports up to 1600W input, while compatible generator and alternator charging provide additional flexibility when mains electricity is unavailable.

The <10ms UPS switchover provides rapid transition to battery power when mains electricity is interrupted.

Wi-Fi and Bluetooth connectivity allow compatible monitoring and control through the EcoFlow app.

Key Features

• 3072Wh Capacity: Large battery capacity for extended backup and off-grid use.
• 3600W AC Output: Supports a wide range of compatible household, business and outdoor equipment.
• 7200W Surge Output: Provides additional temporary power for compatible startup loads.
• 4700W X-Boost 3.0: Supports selected higher-powered appliances when X-Boost is enabled.
• Expandable to Approximately 7kWh: Add a compatible DELTA Pro 3 Smart Extra Battery with the required Expansion Adapter.
• <10ms UPS: Rapid automatic transition to battery power when mains electricity fails.
• 2300W AC Charging: High-power X-Stream mains charging.
• 75-Minute 0–80% Charging: Fast AC recovery when backup power needs to be restored quickly.
• 1600W Solar Input: Supports substantial renewable solar charging.
• Generator Charging: Supports compatible generator input up to 2400W.
• Alternator Charging: Supports compatible EcoFlow alternator charging solutions.
• LFP Battery: Uses long-life lithium iron phosphate battery chemistry.
• Full-Tab Battery Cells: Automotive-grade cell construction designed for durability and performance.
• Intelligent BMS: Continuously monitors important battery and operating conditions.
• Four AC Outlets: Provides multiple 230V AC connections.
• Nine Total Outputs: Flexible AC, USB and 12V DC connectivity.
• 378W 12V DC Output: Includes vehicle and Anderson DC output options.
• Quiet Operation: Operates from approximately 25dB under specified low-load conditions.
• Wi-Fi & Bluetooth: Supports EcoFlow app monitoring and control.
• Class B EMC: Designed for operation around compatible home and office electronics.
• Up to 5-Year Warranty: 3-year standard warranty plus an eligible 2-year extension through EcoFlow App registration.

Specifications

Output Ports

Charging

The EcoFlow DELTA 3 Ultra Plus supports multiple charging methods for use at home, on the road or away from mains electricity.

AC Charging

• Up to 2300W input
• 220–240V AC
• Approximately 0–80% in 75 minutes
• Approximately 0–100% in 110 minutes

Solar Charging

• Up to 1600W solar input
• Approximately 0–80% in 101 minutes with suitable 1600W solar input under favourable conditions

Compatible solar panels and connection equipment must remain within the DELTA 3 Ultra Plus solar-input limits.

Alternator Charging

The DELTA 3 Ultra Plus supports compatible alternator charging solutions.

With the EcoFlow 800W Alternator Charger:

• Up to 800W charging
• Approximately 0–80% in 177 minutes under suitable conditions
• EcoFlow Alternator Charger Custom Fit Output Cable required
• Custom Fit Output Cable sold separately

The DELTA 3 Ultra Plus alternator charging specification supports up to 1000W maximum input through the 4+8 port with a compatible charging solution.

Solar + Alternator Charging

Compatible solar and alternator charging can be combined for up to:

2600W total input

Under suitable conditions, combined charging can reach approximately:

0–80% in 65 minutes

Generator Charging

Compatible generator charging supports up to:

2400W maximum input

Actual charging time will depend on the connected generator, available input power, battery state, temperature and operating conditions.

Expandable Capacity

The DELTA 3 Ultra Plus starts with:

3072Wh

For additional backup capacity, it can be expanded using:

• 1 × EcoFlow DELTA Pro 3 Smart Extra Battery – 4096Wh
• 1 × EcoFlow Smart Extra Battery Expansion Adapter

Expanded System Capacity

3072Wh + 4096Wh provides approximately:

7.1kWh total battery capacity

The Smart Extra Battery Expansion Adapter is required and sold separately unless included as part of a specific bundle.

What Can It Power?

The DELTA 3 Ultra Plus provides:

• 3600W continuous AC output
• 7200W surge output
• X-Boost 3.0 support for selected appliances up to 4700W

This makes it suitable for compatible equipment across applications such as:

• Home backup
• Kitchen equipment
• Living-room electronics
• Laundry equipment
• Office equipment
• Networking and IT systems
• Garage and workshop equipment
• RV and caravan equipment
• Camping
• Remote and off-grid applications

X-Boost does not increase the normal continuous AC output beyond 3600W.

Some appliances with strict voltage requirements or sensitive electronics may not operate correctly in X-Boost mode.

Please note: Actual runtime and performance will vary depending on the specific device or appliance connected, its power consumption, startup requirements, battery level and operating conditions. Higher-power devices will use the available battery capacity faster than lower-power devices.

Always check both the normal operating power and startup requirements of the connected appliance before use.

UPS Backup Power

The DELTA 3 Ultra Plus provides:

<10ms Automatic UPS Switchover

When connected to mains electricity, compatible equipment can automatically transfer to battery power if the mains supply is interrupted.

This makes it useful for compatible:

• Home-office equipment
• Computers
• Networking equipment
• Wi-Fi and fibre equipment
• NAS systems
• Selected servers
• Security equipment
• Communication equipment
• Other suitable electronics

Important: The DELTA 3 Ultra Plus is not a zero-transfer-time online UPS.

Connected equipment must be capable of tolerating a transfer time of up to approximately 10 milliseconds.

Always check the backup-power requirements of sensitive or critical equipment before use.

Battery & Protection

The DELTA 3 Ultra Plus uses:

Automotive-Grade Full-Tab LFP Cells

The intelligent Battery Management System continuously monitors important conditions including:

• State of charge
• State of health
• Temperature
• Battery operation

The cell-to-chassis structural design provides additional mechanical protection for the internal battery system.

The unit is designed for long-term operation, with an estimated service life of approximately 10 years under proper use.

Actual battery and product lifespan will depend on usage patterns, charging behaviour, temperature and operating conditions.

Quiet Operation

X-Quiet 3.0 stepless fan control adjusts cooling according to operating conditions.

Noise levels can be as low as:

Approximately 25dB

This figure applies at a 600W charging or discharging load, measured at a distance of 1 metre in a 25°C environment.

Noise levels will increase depending on load, charging rate, temperature and cooling requirements.

Compatibility

Extra Battery Expansion

Compatible expansion configuration:

• EcoFlow DELTA Pro 3 Smart Extra Battery
• EcoFlow Smart Extra Battery Expansion Adapter

The adapter is required to connect the extra battery to the DELTA 3 Ultra Plus.

Maximum expanded system capacity is approximately 7kWh.

EcoFlow 800W Alternator Charger

Compatible with:

• EcoFlow 800W Alternator Charger
• EcoFlow Alternator Charger Custom Fit Output Cable

The Custom Fit Output Cable is required and sold separately.

Generator Charging

Supports compatible generator charging up to 2400W.

For specific EcoFlow Smart Generator configurations, the correct model-specific adapter may be required.

Solar Charging

Supports up to:

1600W solar input

Always ensure the total connected solar configuration remains within the DELTA 3 Ultra Plus input specifications.

App Control

Wi-Fi and Bluetooth connectivity provide compatible monitoring and control through the EcoFlow app.

The app can be used to monitor and manage functions such as:

• Battery level
• Input power
• Output power
• Charging status
• Battery status
• Solar generation
• Selected charging and power settings

Available app functions may vary according to software version and region.

What’s in the Box

• 1 × EcoFlow DELTA 3 Ultra Plus Portable Power Station
• 1 × AC Charging Cable
• 1 × Manuals & Warranty Card

Extra batteries, solar panels, alternator chargers, adapters and model-specific connection cables are sold separately unless included as part of a specific bundle.

Warranty

3-Year EcoFlow Limited Warranty

An additional 2-year warranty extension is available following eligible product registration through the EcoFlow app.

Maximum Warranty Coverage: Up to 5 Years

Sustainability

The DELTA 3 Ultra Plus uses long-life LFP battery chemistry and supports renewable solar charging with up to 1600W solar input.

Its expandable design also allows additional battery capacity to be added without replacing the main power station.