EcoFlow Alternator Charger Plus 1000
Drive and charge with a high-power vehicle charging solution that uses surplus alternator power to recharge compatible EcoFlow portable power stations at up to 1000W while you travel.
Key Features
- Charge up to 1kWh in approximately 1 hour while driving*
- Up to 1000W alternator charging output
- Flexible alternator and solar dual charging
- Three operating modes: charging, reverse charging and battery maintenance
- Helps maintain and protect the vehicle starter battery
- Smart control through the EcoFlow app
- Supports Apple CarPlay and Android Auto infotainment interfaces where compatible
- Plug-and-play design with ignition start for automatic power-on
- Suitable for 12V and 24V vehicle battery systems and 24V and 48V portable power stations
- Compatible with EcoFlow RIVER and DELTA series power stations, plus many third-party portable power stations*
*Actual charging power, charging time and compatibility depend on the vehicle model, alternator output, installation, power station model and driving conditions. Always follow the official operating manual supplied with the product.

Where to Use
Ideal for motorhomes, campervans, RVs, pickups, car camping, overlanding, vehicle conversions, off-grid travel and emergency backup. The Alternator Charger Plus 1000 helps keep portable power stations charged for lighting, cooking, tools, appliances and outdoor equipment, reducing reliance on campsite hook-ups, home AC charging and slow 12V cigarette lighter charging.
Fast and Flexible Charging
Charge while you drive
Delivering up to 1000W, the Alternator Charger Plus 1000 charges considerably faster than a standard car cigarette lighter socket. It recharges your portable power station while the engine is running, helping you arrive with stored power ready to use.
Alternator and solar dual charging
On cloudy or low-sunlight days, the charger can draw up to 1000W from the alternator alone. On sunny days, supported installations can combine up to 700W from the alternator with up to 300W from solar, providing a maximum combined input of 1000W.
Three Charging Modes
Three operating modes provide control over charging the portable power station and maintaining the vehicle starter battery.
| Mode | Use | Output |
| Charging Mode | Charges the portable power station while driving using surplus alternator power. | Up to 1000W |
| Reverse Charging Mode | Supplies power from the power station to the vehicle battery, helping prevent battery drain when multiple 12V loads are connected. | Up to 1000W |
| Battery Maintenance Mode | Maintains the starter battery when its voltage is low, helping extend battery lifespan. | Up to 100W |
Smart Control
Use the EcoFlow app to monitor charging status, starter battery voltage, power station state of charge and remaining charging time. Support for compatible Apple CarPlay and Android Auto infotainment interfaces makes it easier to view and adjust charging while on the road.
Technical Specifications
| Model | EF-AC-001 |
| Net Weight | Approx. 1.7 kg |
| Dimensions (W × D × H) | 276 × 187 × 38 mm |
| Wi-Fi | Supported |
| Bluetooth | Supported |
| Charging Mode Input | 12V/24V DC, 11V–31V DC, 75A Max |
| Charging Mode Output | 24V DC / 40V–60V DC, 20A Max, 1000W Max via XT150 port (see below for compatibility) |
| Battery Maintenance Mode Input | 40V–60V DC, 3A Max |
| Battery Maintenance Mode Output | 13.8V/27.6V DC, 100W Max |
| Reverse Charging Mode Input | 40V–60V DC, 20A Max |
| Reverse Charging Mode Output | 13.8V/27.6V DC, 75A Max |
| Fuse Rated Current | 125A |
| Protection Type | Reverse polarity, overcurrent, short circuit, overvoltage and undervoltage protection |
| Dust Protection Rating | IP4X |
| Cooling | Fanless natural cooling |
| Operating Temperature | –10℃ to 45℃ |
| Storage Temperature | –30℃ to 70℃ |
| Operating Humidity | ≤95% |
| Storage Humidity | ≤95% |
Compatibility
- Works with 12V and 24V vehicle battery systems.
- Includes an XT150 output cable.
- Reverse charging requires an output cable with a communication function, such as an XT150 or supported 4+8 connection.
- An XT60 output cable (optional - not included in the package) does not support reverse charging.
Please check compatibility before purchase, particularly when using a third-party power station or a non-standard vehicle electrical system.
Please see the tables below for details of compatible systems. An XT150 cable is included - the XT60 cable is an optional extra - contact us for current availability.




Protection and Installation
Intelligent starter battery voltage detection allows the charger to adapt its output according to the alternator model, driving conditions and vehicle power usage. It is designed to use surplus alternator power without disrupting normal vehicle operation.
- Reverse polarity protection
- Overcurrent protection
- Short circuit protection
- Overvoltage protection
- Undervoltage protection
- IP4X dust protection rating
- Fanless natural cooling design
- Braided input cable designed for easier routing through the vehicle
- Direct plug-in terminals for straightforward connection and disconnection
- Automatic power-on with the engine once the ignition cable is connected
Installation is available through our trusted partners. Please contact us to discuss your vehicle and power station.
Available for Download: Datasheet
