EcoFlow 800W Alternator Charger (EF-FC-301-1)

The EcoFlow 800W Alternator Charger (EF-FC-301-1, part number 5015501001) is a high-efficiency DC-DC vehicle charging solution designed to rapidly charge EcoFlow portable power stations directly from a vehicle’s alternator. Engineered for road travel, RV living, and off-grid mobility, it converts excess engine power into usable energy for fast battery replenishment while driving. With up to 800W output, it delivers significantly faster charging compared to standard 12V car outlets, making it a powerful companion for extended trips and mobile energy systems. Its smart energy management, multiple operating modes, and app connectivity provide a complete in-vehicle power ecosystem.

Product Features

Ultra-Fast 800W Vehicle Charging

The alternator charger delivers up to 800W of continuous power output, enabling rapid recharging of EcoFlow power stations while driving. It can replenish approximately 1kWh of energy in around 75 minutes, making it ideal for long-distance travel and off-grid power needs.

3-in-1 Smart Power Management System

This device supports three intelligent operating modes: fast charging of power stations, reverse charging to support vehicle battery recovery or jump-starting, and battery maintenance mode to trickle charge and preserve vehicle battery health during extended parking.

Dual Voltage Vehicle Compatibility

Designed to work with both 12V and 24V vehicle systems, the charger is compatible with a wide range of vehicles including SUVs, pickup trucks, vans, and RVs. It automatically adapts to system voltage for safe and stable operation.

Smart App Connectivity

Integrated Wi-Fi and Bluetooth connectivity allows users to monitor and control charging performance through the EcoFlow mobile app. Real-time data tracking provides visibility into power input, output, and system status.

Advanced Safety Protection System

Built-in safety mechanisms protect against overcurrent, short circuits, reverse polarity, and voltage fluctuations. These safeguards ensure stable operation and protect both the vehicle electrical system and connected power station.

High-Efficiency GaN Power Technology

The use of Gallium Nitride (GaN) technology improves energy conversion efficiency while reducing heat generation. This allows compact design performance without compromising output stability or reliability.

Product Specifications

• Model Number: EF-FC-301-1 / 5015501001
• Product Type: DC-DC vehicle alternator charger
• Power Output (Charge Mode): Up to 800W (40V–60V DC)
• Input Voltage Range: 11V–31V (12V/24V vehicle systems)
• Input Current: Up to 76A max
• Reverse Charging Output: 13.8V / 27.6V, up to 800W
• Battery Maintenance Output: 13.8V / 27.6V, up to 100W
• Charging Speed: Approximately 1kWh in 75 minutes
• Efficiency Technology: GaN (Gallium Nitride)
• Connectivity: Wi-Fi (2412–2472 MHz), Bluetooth (2402–2480 MHz)
• Operating Temperature Range: -20°C to 60°C
• Device Dimensions: 242 × 194 × 35 mm
• Net Weight: Approximately 2.3 kg (5.1 lbs)
• Compatibility: EcoFlow DELTA series (including DELTA 2, DELTA 2 Max, DELTA Max series)
• Connection Interface: XT150 output cable (included), XT60 support for third-party devices (limited functionality)
• Installation Requirements: Includes 5m input cable, 125A fuse, and mounting hardware