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EcoFlow 500W Alternator Charger
by EcoFlow

EcoFlow 500W Alternator Charger

SKU: EFAlternatorCharger500W-N
Save $29.99 Save $29.99
$228.99
$228.99 - $228.99
$228.99
$199.00
$199.00 - $199.00
$199.00
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2-Year Warranty

Off Grid Stores is an authorized retailer of EcoFlow products. Because of this, we pass on EcoFlow's manufacturer warranty to you.

Product Highlights
  • 500W Alternator Charger, 5× faster than traditional in-vehicle auxiliary power outlets. Top up 1kWh in only 2.1 hours
  • A 3-in-1 fast charger, maintainer, and jump starter keeps your battery in mint condition
  • Compatible with third-party portable power stations
  • 3-step easy installation
  • Suitable for a variety of vehicles, including SUVs, pickups, and RVs
  • Expands existing RV house battery capacity
  • The 500W Alternator Charger comes with an XT60 cable, but does not support reverse charging & battery maintenance functions with the XT60 cable. To enable reverse charging & battery maintenance functions, purchase the XT150 cable and use with an EcoFlow DELTA Series product.
  • When used with third-party portable power stations, the 500W Alternator Charger does not support reverse charging & battery maintenance functions.
  • A DELTA Pro to Smart Generator Adapter is required to connect the Alternator Charger to DELTA Pro.
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EcoFlow 500W Alternator Charger

EcoFlow 500W Alternator Charger


Top up 1kWh in only 2.1 hours

Charge 5× faster while you drive with our EcoFlow 500W Alternator Charger and recharge your power station in only 2.1 hours.
With the EcoFlow 500W Alternator Charger, charge 5 times faster than with traditional vehicle auxiliary power outlets simply by using excess energy generated by your vehicle. The charger uses its onboard DC-DC converter to restore your EcoFlow power station's energy while you drive.

Triple the value with a 3-in-1 functional design

The 3-in-1 charger, maintainer, and jump starter saves time, money, and precious in-vehicle space.With its smart and efficient fast charging capabilities, you'll stay powered no matter how long you're on the road.

Charging Mode

Use your car's alternator to refuel your portable power station.

Reverse Charging Mode

Recharge your vehicle starter battery or RV house battery using your portable power station.

Battery Maintenance Mode

Extends your vehicle starter battery or RV house battery life by using a lower electrical current.

 

Compatible with all EcoFlow and most third-party power stations

Compatible with an XT60 connection, designed to charge EcoFlow RIVER, DELTA Series, and most
third-party power stations. The charger's 500W fast-charging is compatible with most SUV, Pickup, and RV alternators, meeting diverse short-trip car camping power needs.

 *When using an XT60 cable, the Alternator Charger switch on the device must be manually turned on and the charging function enabled in the app before charging can begin. Therefore, if planning to use the XT60 cable for output, avoid concealed installation of the Alternator Charger in advance.

Safety-assured for any journey

With a high thermal resistance, Gallium Nitride (GaN) technology ensures safe charging every single time. The 500W Alternator Charger offers multiple safety features, including undervoltage protection that prevents excessive energy use and damage to the starting battery. A 2-year warranty ensures your experience and peace of mind.


Smart Charge, Smarter Control - Industry-first vehicle infotainment integration

Monitor your power station and remaining charging time at a glance. Stay connected with real-time control through Apple iOS CarPlay & Android Auto support. Access the EcoFlow App directly via your vehicle's infotainment system, turning your drive into a hub of intelligent energy management. Everything at your fingertips without constantly checking your phone, ensuring safer driving.

Clean, easy install without leaving a mark

Connect your 500W Alternator Charger to your vehicle's starter battery or RV's house battery to enjoy
a worry-free power experience during your journey.

Step 1: Connect the Fuse Cable

1. Connect the fuse cable to the input cable on one end.
2. Connect the fuse cable to the vehicle battery on the other end.

Step 2: Connect the Input Cable

1. Connect the black cable to the chassis terminal.
2. Thread the other end of the input cable through the car body towards the charger. If the input cable is bulky or difficult to pull through, disconnect the cable ends before threading.
3. Plug the other side of the input cable into the EcoFlow 500W Alternator Charger.

Step 3: Start Charging

Plug in the output cable from the EcoFlow 500W Alternator Charger to the portable power station.


How to Choose your EcoFlow Alternator Charger

Specifications:

EcoFlow 500W Alternator Charger
Model EF-MS-H02-1
Net Weight Approximately 3.53 lbs
Dimensions (W × D × H) 9.5 in × 7.6 in × 1.3 in
Wi-Fi Frequency: 2412 MHz ~ 2472 MHz,
Maximum output power: 18.22 dBm
Bluetooth Frequency: 2402 MHz ~ 2480 MHz,
Maximum output power: 7.89 dBm
Charge 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 Charge Mode Input: 40V~60V, 13.2A Max.
Output: 13.8V/27.6V~, 500W Max.
Rated Current of Fuse 125A
Protection Type Reverse polarity protection / Overcurrent protection /
Short circuit protection / Overvoltage and
Undervoltage protection (Provided with integral
protection against overloads)
Operating Temperature -4°F to 140°F
Storage Temperature -22°F to 158°F
Operating Humidity ≤95%
Storage Humidity ≤95%

PACKAGE INCLUDES

EcoFlow 500W Alternator Charger

EcoFlow 500W Alternator Charger

x 1

Input Cable (5m)

x 1

XT60 Output Cable (1m)

x 1

Fuse Cable

x 1

Installation Board

x 1

M5

x 3

M6

x 2

M6 Nut

x 2

ST5.5

x 2

Cable Puller

x 1

User Manual

x 1

EcoFlow Warranty Card

x 1

Frequently Asked Questions

Is the EcoFlow Alternator Charger compatible with third-party power stations, and how are they charged?

The Alternator Charger can charge third-party portable power stations if the following conditions are met: 1. Connected via an XT60 cable. 2. The battery type is configured in the settings. 3. The vehicle battery voltage (12V/24V) is selected based on the actual voltage level of the vehicle battery connected to the EcoFlow Alternator Charger. 4. The portable power station type is selected as a third-party 24V battery

Why can't the maximum power be reached when using the XT60 cable?

1. The maximum power is limited to 500W for both the 800W and 500W Alternator Charger when using an XT60 cable. 2. When the portable power station type is set to 48V, the maximum power is 500W. When set to 24V, the maximum power is 360W. 3. The actual charging power depends on the power station's current input capability. The 800W/500W/360W ratings refer to the Alternator Charger's rated output power, but the actual input power is determined by the power station's rated input capacity.

Why do I need to set the cable length?

The cable length setting digitally compensates for voltage drop caused by long cable connections to the vehicle battery, ensuring a more accurate voltage display. Recommendation: Set it based on the actual measured length of the input circuit.

Why can't I select the portable power station type as 24V (24V unit: RIVER 2/3/mini/Max/Pro, WAVE, & third-party 24V batteries) when the vehicle battery is set to 24V?

The Alternator Charger uses a boost circuit design, which requires the input voltage to be lower than the output voltage to ensure optimal performance and electrical safety.

Will the Alternator Charger consume more fuel (i.e. affect gas mileage) when being used?

The product uses the power generated by the vehicle's alternator. Even if all the electrical devices inside the car are turned off, the alternator still generates power while the vehicle is running. The Alternator Charger harnesses the surplus power generated by the car's alternator and stores it in a portable power station through the charger. The impact on fuel consumption is very minimal.

Do I need to drill holes to install this product? Will it cause any damage to the vehicle?

No drilling is required for the installation. Wiring to the vehicle's front alternator does not require drilling and will not damage the vehicle. Simply route the wiring through the firewall near the driver's seat. The Alternator Charger can also be placed using a no-drill method.

Is the Alternator Charger suitable for DIY installation?

The installation of the Alternator Charger is fairly straightforward, and it is feasible for some users with some hands-on experience to install it themselves. However, it is still recommended to contact professional personnel from related workshops for installation. Installation advice: When wiring, avoid high temperatures and sharp and friction-prone areas, and securely fasten the cables to avoid cable wear or loose connections caused by cable movement. The Alternator Charger may generate relatively high temperatures, so avoid covering the product. After use, avoid immediate direct contact to prevent the risk of scalds.

What advantages does the 500W Alternator Charger offer compared to charging via the cigarette lighter?

The charging power is significantly increased. The charging power of a cigarette lighter is about 100W. In contrast, the Alternator Charger can support charging portable power stations continuously at a high power of 500W while driving, which is 5 times the power of a cigarette lighter.

What types of vehicles are suitable for installation? Can all of them reach maximum power?

Technically, the Alternator Charger is not limited by vehicle power sources (fuel, electric, etc.), but it is best suited for fuel-powered vehicles. It is also compatible with hybrid and range-extended vehicles. The actual charging power depends on the alternator’s surplus power and may fluctuate. Additionally, some older or specialized vehicles with consistently low voltage may not function properly with the Alternator Charger.

How does the Alternator Charger start and stop?

According to voltage recognition, the starting voltage is adjustable, and the adjustment range is 11V-30V.

If the vehicle battery is low on power, can the vehicle battery be charged by the alternator charger?

Reverse charging is supported. Please manually switch the working mode in the EcoFlow APP. (Requires XT150 cable and must be used with the EcoFlow DELTA series products.)

How long does it take to fully charge a RIVER Series / DELTA Series product using the 500W Alternator Charger?

RIVER 2 - 2.4 hr RIVER 2 Pro - 3.6 hr RIVER 2 Max - 2.5 hr RIVER 3 - 2.3 hr DELTA 2 (1kWh) - 2.1 hr DELTA 3 (1kWh) - 2.1 hr DELTA 3 Plus (1kWh) - 2.1 hr

How to determine whether my car is compatible with the Alternator Charger?

The Alternator Charger supports an input voltage range of 11V-31V, making it theoretically compatible with vehicles using 12V or 24V starter batteries.

How many working modes does the Alternator Charger have?

1. Charge Mode: The vehicle's alternator charges the portable power station, while the car battery acts as a load to conduct current. 2. Reverse Charge Mode: The portable power station charges the starter battery or RV house battery with relatively high current. (Requires the XT150 cable and must be used with EcoFlow DELTA Series products.) 3. Battery Maintenance Mode: Similar to reverse charging, but with lower current and a maximum working power of 100W. (Requires the XT150 cable and must be used with EcoFlow DELTA Series products.)

Product Documents:

EcoFlow 500W Alternator Charger User Manual

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EcoFlow 500W Alternator Charger Safety Information Guide

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