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EcoFlow 500W Alternator Charger

EcoFlow 500W Alternator Charger

BY: EcoFlow | SKU: EFAlternatorCharger500W-N Availability: In Stock
$399.00
$349.00
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EcoFlow Alternator Charger (500W)

The EcoFlow 500W Alternator Charger is a vehicle-based charging solution designed to charge compatible battery systems while you drive. It supports charging, reverse charging, and battery maintenance modes, and adds smart connectivity via Wi-Fi and Bluetooth for monitoring and control.

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EcoFlow Alternator Charger (500W) Features

500W Alternator Charging – Delivers up to 500W max output in Charging Mode for faster on-the-road energy recovery.

Charging + Reverse Charging Modes – Supports both vehicle-to-battery charging and battery-to-vehicle system reverse charging for flexible power flow.

Battery Maintenance Mode – Provides a lower-power maintenance output (up to 100W max) to help maintain battery health.

Smart Connectivity – Built-in Wi-Fi and Bluetooth support for app-based monitoring and configuration.

Built-In Protections – Includes multiple electrical protections to support safe operation in automotive environments.

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EcoFlow 500W Alternator Charger Applications

  • Overlanding – keep portable power stations or auxiliary batteries topped off while traveling.
  • Work trucks – support tools, jobsite electronics, and on-board power needs between stops.
  • Vanlife builds – maintain a steady charging source for daily off-grid living.
  • Fleet vehicles – standardize reliable charging for mobile equipment and accessories.
  • Emergency readiness – sustain essential devices and backup power during extended driving or evacuations.
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What's Included

Everything you need is included with your product.

  • 1 x Ecoflow 500w Alternator Charger
  • 1 x Input Cable (5M)
  • 1 x Installation Board
  • 1 x Cable Puller
  • 1 x M6 Nut (Screw)
  • 1 x M5 (Screw)
  • 1 x XT60 Output Cable (1M)
  • 1 x M6 (Screw)
  • 1 x Fuse Cable
  • 1 x ST5.5
  • 1 x Manual & Warranty Card

Warranty

  • 2-year warranty

EcoFlow Alternator Charger (500W) Specifications

Specification Details
Model EF-MS-H02-1
Net Weight Approximately 3.53 lbs (1.6 kg)
Dimensions (W × D × H) 9.5×7.6×1.4 inch (242 x 194 x 35 mm)
Wi-Fi Frequency: 2412MHz-2472MHz | Maximum output power: 18.22dBm
Bluetooth Frequency: 2402MHz-2480MHz | Maximum output power: 7.89dBm
Charging Mode Input: 12V/24V⎓(11V-31V⎓), 45A Max. | Output: 40V-60V⎓, 500W Max.;24V⎓, 360W Max.
Battery Maintenance Mode Input: 40V-60V⎓, 3A Max. | Output: 13.8V/27.6V⎓, 100W Max.
Reverse Charging Mode Input: 40V-60V⎓, 13.2A Max. | Output: 13.8V/27.6V⎓, 500W Max.
Fuse's Rated Current 125A
Protection Type Reverse polarity protection, Overcurrent protection, Short circuit protection, Overvoltage and undervoltage protection(Provided with integral protection against overloads)
Operating Temperature –4℉ to 140℉ (–20℃ to 60℃)
Storage Temperature –22℉ to 158℉ (–30℃ to 70℃)
Operating Humidity ≤95%
Storage Humidity ≤95%
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Frequently-Asked Questions

What vehicles does the EcoFlow 500W Alternator Charger work with?

It is designed for 12V and 24V vehicle systems in Charging Mode (input range 11–31V). Always confirm your vehicle system voltage and installation requirements before setup.

What is the difference between Charging Mode and Reverse Charging Mode?

Charging Mode uses your vehicle’s electrical system to charge a compatible battery system. Reverse Charging Mode allows power to flow back from a higher-voltage battery input (40–60V) to a 13.8V/27.6V output (up to 500W max), depending on your configuration.

Does it support a maintenance or trickle mode?

Yes. Battery Maintenance Mode supports a lower-power output (up to 100W max) intended for maintaining battery charge levels.

What safety protections are built in?

It includes reverse polarity protection, overcurrent protection, short circuit protection, and overvoltage/undervoltage protection (with integral protection against overloads).

What fuse rating should be used?

The unit lists a 125A fuse rated current. Use the included fuse cable and follow the official installation guidance for correct fuse placement.