EcoFlow 800W Alternator Charger for Portable Power Stations

At a Glance

• Up to 800W charging output while driving
• Add approximately 1kWh in around 1.3 hours
• Up to 8× faster than traditional vehicle auxiliary-port charging
• 3-in-1 charging, reverse charging and battery maintenance
• Supports compatible 12V and 24V vehicle systems
• Works with selected EcoFlow portable power stations
• 800W maximum reverse-charging output
• 100W maximum battery-maintenance output
• GaN power technology
• Wi-Fi and Bluetooth connectivity
• EcoFlow app monitoring and control
• Multiple built-in electrical protections
• 5m vehicle input cable included
• 1m XT150 output cable included
• Approximately 2.3kg
• 2-year EcoFlow warranty

Short Description

The EcoFlow 800W Alternator Charger is a vehicle-based DC-to-DC charging solution that uses available alternator power to recharge compatible EcoFlow portable power stations at up to 800W while you drive.

Why Choose This EcoFlow

The EcoFlow 800W Alternator Charger turns driving time into charging time.

Instead of relying on a conventional vehicle auxiliary power outlet, which typically provides around 100W, the Alternator Charger connects to the vehicle electrical system and can supply up to 800W to a compatible EcoFlow portable power station.

Under suitable conditions, it can add approximately 1kWh of stored energy in around 1.3 hours.

Its 3-in-1 design also supports reverse charging and battery maintenance with compatible systems, making it useful for overlanding, caravans, RVs, mobile work vehicles and other applications where mains charging may not always be available.

Best For

• Overlanding
• 4×4 travel
• Camping
• Caravans and RVs
• Camper vans
• Pickup trucks
• Mobile work vehicles
• Road trips
• Off-grid travel
• Charging while driving
• Compatible EcoFlow DELTA systems
• Vehicle-based backup power setups

Product Description

The EcoFlow 800W Alternator Charger is a high-power vehicle DC-to-DC charger designed to recharge compatible EcoFlow portable power stations while the vehicle is running.

It connects to a compatible vehicle starter battery or RV house-battery system and uses available electrical power generated by the vehicle alternator.

Charging output can reach up to 800W, allowing approximately 1kWh of energy to be added in around 1.3 hours under suitable conditions.

Actual charging power is automatically influenced by the available surplus power from the vehicle alternator and may be lower than 800W depending on the vehicle and operating conditions.

The charger provides three operating modes:

Charging Mode uses available alternator power to recharge a compatible EcoFlow portable power station.

Reverse Charging Mode allows a compatible EcoFlow power station to supply energy back to a supported vehicle starter battery or RV house battery at up to 800W.

Battery Maintenance Mode supplies up to 100W to help maintain a compatible starter or house battery.

Built-in Wi-Fi and Bluetooth connectivity allow compatible functions, operating status and settings to be managed through the EcoFlow app.

For safe and reliable operation, professional installation is recommended.

Key Features

• 800W Fast Charging: Recharge compatible EcoFlow portable power stations at up to 800W while driving.
• 1kWh in Around 1.3 Hours: Adds approximately 1kWh under suitable full-power charging conditions.
• Up to 8× Faster: Provides significantly more charging power than a typical 100W vehicle auxiliary outlet.
• 3-in-1 Operation: Combines Charging Mode, Reverse Charging Mode and Battery Maintenance Mode.
• Reverse Charging: Supports up to 800W output back to a compatible vehicle starter battery or RV house battery.
• Battery Maintenance: Provides up to 100W for compatible starter or house-battery maintenance.
• 12V & 24V Vehicle Support: Designed for compatible vehicle electrical systems within its input range.
• GaN Technology: Uses Gallium Nitride power technology for efficient high-power operation.
• Smart Control: Wi-Fi and Bluetooth provide EcoFlow app monitoring and compatible control functions.
• Built-In Protection: Includes reverse-polarity, overcurrent, short-circuit, overvoltage and undervoltage protection.
• Long Vehicle Cable: Includes a 5m vehicle input cable for installation flexibility.
• XT150 Output Cable: Includes a 1m XT150 output cable for compatible EcoFlow systems.
• Compact Design: Measures 242 × 194 × 35mm.
• 2-Year Warranty: Covered by EcoFlow's 2-year limited warranty.

Specifications

Operating Modes

Charging Mode

Uses available electrical power generated by the vehicle alternator to recharge a compatible EcoFlow portable power station.

Maximum Output: 800W

Charging power can vary depending on the vehicle alternator, available surplus power and operating conditions.

Reverse Charging Mode

Allows a compatible EcoFlow power station to supply energy back to a supported vehicle starter battery or RV house battery.

Maximum Output: 800W

Battery Maintenance Mode

Provides lower-power charging to help maintain the charge level of a compatible vehicle starter battery or RV house battery.

Maximum Output: 100W

Charging Performance

At full charging power, the EcoFlow 800W Alternator Charger can add approximately:

1kWh in 1.3 hours

Typical charging examples include:

Please note: Actual charging time and charging power will vary depending on the vehicle alternator's available surplus power, engine operating conditions, electrical load, battery level, connected power station and charging settings.

The 800W figure represents the charger's maximum charging output and is not guaranteed continuously in every vehicle.

EcoFlow Compatibility

The EcoFlow 800W Alternator Charger is compatible with selected EcoFlow portable power stations and extra batteries.

Compatible with Standard XT150 Connection

Compatible products with the appropriate XT150 extra-battery connection include selected EcoFlow models such as:

• EcoFlow DELTA 2
• EcoFlow DELTA 2 Smart Extra Battery
• EcoFlow DELTA 2 Max
• EcoFlow DELTA 2 Max Smart Extra Battery
• EcoFlow DELTA Max 1600
• EcoFlow DELTA Max 2000
• EcoFlow DELTA 3 Plus

The included 1m XT150 Output Cable is used where the compatible EcoFlow product supports the required XT150 connection.

EcoFlow DELTA 3 Max

The EcoFlow DELTA 3 Max is compatible with the 800W Alternator Charger but requires the separately sold:

EcoFlow Alternator Charger XT60 Output Cable

The standard included XT150 output cable cannot connect directly to the DELTA 3 Max.

When connected to an 800W Alternator Charger, the DELTA 3 Max supports up to 500W alternator input and does not support reverse charging to the vehicle battery through this connection.

EcoFlow DELTA Pro

The EcoFlow DELTA Pro requires the separately sold:

EcoFlow DELTA Pro to Smart Generator Adapter

EcoFlow DELTA Pro 3

The EcoFlow DELTA Pro 3 supports the EcoFlow 800W Alternator Charger.

A compatible adapter or output cable is required for connection.

EcoFlow DELTA 3 Ultra Plus

The EcoFlow DELTA 3 Ultra Plus supports charging from the EcoFlow 800W Alternator Charger at up to 800W.

Connection requires the separately sold:

EcoFlow Alternator Charger Custom Fit Output Cable

Important Compatibility Note

Different EcoFlow power stations use different charging ports and may require an additional adapter or output cable.

Always confirm the exact EcoFlow model and required connection cable before purchasing or installing the Alternator Charger.

Vehicle Compatibility

The EcoFlow 800W Alternator Charger operates with compatible:

• 12V vehicle starter-battery systems
• 24V vehicle starter-battery systems
• RV house-battery systems

It is suitable for many:

• SUVs
• 4×4 vehicles
• Pickups
• Vans
• Camper vans
• Caravans
• Motorhomes
• RVs

Actual compatibility and charging performance depend on the vehicle's electrical system and available alternator capacity.

Some older, hybrid, range-extended or specialised vehicles may behave differently.

Before installation, confirm that the vehicle electrical system is suitable for the charger.

Installation

The Alternator Charger connects directly to the vehicle starter battery or compatible RV house battery and requires high-current cabling to be routed through the vehicle.

Professional installation is recommended.

During installation:

• Route cables away from high-temperature components
• Avoid sharp edges and friction points
• Keep cables clear of moving parts
• Secure cables to prevent movement and wear
• Ensure electrical connections are properly tightened
• Do not cover the Alternator Charger during operation
• Install the charger where heat can dissipate safely

The charger can become hot during normal operation.

Before installation, check whether modifications to the vehicle electrical system could affect the vehicle manufacturer's warranty.

Safety Protection

Built-in protection includes:

• Reverse-polarity protection
• Overcurrent protection
• Short-circuit protection
• Overvoltage protection
• Undervoltage protection

The system also monitors available vehicle electrical power so that charging power can adjust according to operating conditions.

App Control

Wi-Fi and Bluetooth connectivity allow compatible functions to be monitored and controlled through the EcoFlow app.

Depending on system configuration, the app can be used to monitor:

• Charging status
• Charging power
• Operating mode
• Device status
• Compatible charger settings

What’s in the Box

• 1 × EcoFlow 800W Alternator Charger
• 1 × Installation Board
• 1 × Cable Puller
• 1 × M6 Nut
• 1 × M5 Screw
• 1 × M6 Bolt
• 1 × 5m Vehicle Input Cable
• 1 × 1m XT150 Output Cable
• 1 × Fuse Cable
• 1 × ST5.5 Screw
• 1 × Manual & Warranty Card

Please note: Model-specific adapters and alternative output cables are not included unless specifically supplied as part of a bundle.

Warranty

2-Year EcoFlow Limited Warranty

Sustainability

The EcoFlow 800W Alternator Charger uses available electrical energy generated by a compatible vehicle alternator to recharge a portable power station while travelling.