EcoFlow 800W Alternator Charger | Outbound Power
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EcoFlow 800W Alternator Charger

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Power Up Your Adventures, Mile After Mile, With The EcoFlow 800W Alternator Charger

Never get caught off-guard by a drained portable power station again. The EcoFlow 800W Alternator Charger is your on-the-go solution for keeping your EcoFlow DELTA portable power station brimming with energy, ensuring your off-grid adventures and explorations are uninterrupted.

The EcoFlow 800W Alternator Charger is compatible with:

  • DELTA Pro (4.8 hours to recharge)
  • DELTA 2 Max (2.6 hours to recharge)
  • DELTA Max 2000 (2.6 hours to recharge)
  • DELTA 2 (1.3 hours to recharge)
  • DELTA 2 Extra Battery (1.3 hours to recharge)
  • DELTA 2 Max Extra Battery (2.6 hours to recharge)

It is not compatible with DELTA Pro Ultra.

EcoFlow 800W Alternator Charger Powering A Power Station With A Wave 2 In An RV

EcoFlow 800W Alternator Charger Features

8 Times Faster Than Traditional Charging Methods

This innovative charger harnesses the power of your vehicle's alternator, silently capturing excess energy that would otherwise go unused. With a whopping 800W output, it delivers a charging speed eight times faster than traditional 12V cigarette lighter chargers. Translate that into real-world results: replenish 1kWh of power in your EcoFlow DELTA in just 1.3 hours – all while you're driving!

3-in-1 Functionality: Charger, Maintainer, and Jump Starter

The EcoFlow 800W Alternator Charger goes beyond simply refilling your portable power station. It's a comprehensive power management system for your vehicle's electrical needs. Here's how it elevates your on-the-road experience:

  • Fast DC-DC Charger: Efficiently converts excess alternator power into usable energy for your EcoFlow DELTA, ensuring you have ample juice for powering devices like laptops, drones, refrigerators, and more, wherever your journey takes you.
  • Vehicle Battery Maintainer: Worried about a dead car battery after days of using your power station? The EcoFlow 800W Alternator Charger intelligently detects voltage drops in your vehicle's battery and provides a small charge to keep it healthy and prevent sluggish starts.
  • Jump Starter: Unexpected battery drain can happen to anyone. This charger doubles as a jump starter, delivering a powerful surge to kickstart your vehicle's engine in a pinch, getting you back on the road quickly.

Wiring Diagram For the EcoFlow 800W Alternator Charger In A Car

Seamless Installation and Compatibility

The EcoFlow 80W Alternator Charger boasts a user-friendly design that ensures a smooth installation process. Detailed instructions and all necessary hardware are included, allowing for a quick and hassle-free setup in various vehicles, including SUVs, trucks, RVs, and vans. Plus, its compatibility extends to a wide range of EcoFlow DELTA portable power station models, offering maximum versatility.

Built to Last With Durable Construction and Safety Features

Engineered with top-quality materials, the EcoFlow 800W Alternator Charger is built to withstand the rigors of outdoor adventures. Its compact design ensures easy storage within your vehicle, while its durable construction guarantees reliable performance for years to come.

Safety is paramount, and this charger incorporates multiple safeguards, including:

  • Over-current Protection
  • Over-voltage Protection
  • Over-temperature Protection
  • Short Circuit Protection

These features provide peace of mind, knowing your vehicle's electrical system and your EcoFlow DELTA are protected from potential damage during the charging process.

Expand Your RV's Power Potential

For RV owners, the EcoFlow 800W Alternator Charger presents an exciting opportunity to expand your existing house battery capacity. By connecting it to your RV's alternator, you can efficiently capture excess power and use it to recharge your EcoFlow DELTA, effectively extending the runtime of your onboard electrical system. This translates to powering appliances like TVs, refrigerators, and lights for longer durations, enhancing your off-grid RV adventures.

Wiring Diagram For The EcoFlow 800W Alternator Charger In A Motorhome

Invest in Freedom and Convenience

The EcoFlow 800W Alternator Charger is an investment in convenience and freedom. It empowers you to:

  • Embrace Off-Grid Exploration: Hit the road with confidence, knowing you have a reliable way to recharge your EcoFlow DELTA, keeping your devices powered and your adventures uninterrupted.
  • Reduce Reliance on Generators: Ditch the noisy and bulky generators. This silent charger leverages your vehicle's existing power source, offering a cleaner and more efficient way to maintain your EcoFlow DELTA's charge.
  • Peace of Mind on Every Journey: Whether you're embarking on a weekend camping trip or a cross-country expedition, the EcoFlow 800W Alternator Charger ensures you have a reliable power source readily available.

EcoFlow App Monitoring An EcoFlow Power Station Recharging In A Car With The 800W Alternator Charger

What's In The Box

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

Frequently-Asked Questions

Will this product damage the alternator, starter battery, or affect the overall lifespan of the vehicle?

No, the 800W alternator charger's charging logic does not rigidly apply 800 watts. Instead, it depends on the power surplus of the car's alternator. It ensures the alternator is not overloaded, allowing up to a maximum of 800 watts without harming the car's battery.

Will this product consume more fuel (i.e. affect gas mileage) when used?

The product uses the electricity generated by the car's alternator. Even if all the electrical devices inside the car are turned off, the alternator still generates electricity while the car is running. The alternator charger utilizes the surplus electricity 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?

Drilling is not required for installation. The wiring connection to the alternator at the front of the car does not need drilling and will not damage the vehicle. It can simply be wired through the firewall near the driver's seat. The alternator charger can also be installed using methods that do not require drilling.

Is this product suitable for DIY installation?

The installation of the alternator charger is not very complicated, and it is feasible for professional users with some hands-on ability to install it themselves. However, it is still recommended to contact professional personnel from related workshops for installation. Installation advice: When wiring, avoid high temperature, 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 high temperatures, so avoid covering the product. After use, avoid immediate direct contact to prevent the risk of burns.

Is it normal for the alternator charger to get hot?

Yes. The alternator charger may generate high temperatures, so avoid covering the product. After use, avoid immediate direct contact to prevent the risk of burns.

How long does it take to fully charge a DELTA Series product?

DELTA 2 (1kWh) - 1.3 hr; DELTA 2 Max (2kWh) - 2.6 hr; DELTA Pro (3.6kWh) - 4.8 hr; DELTA Max 2000 - 2.6 hr; DELTA Max 1600 - 2.1 hr; DELTA 2 Extra Battery - 1.3 hr; DELTA 2 Max Extra Battery - 2.6 hr.

Compared to charging via the cigarette lighter, what advantages does the alternator charger offer when used in a vehicle?

The charging power is significantly increased. The charging power of a cigarette lighter is about 100W, whereas the alternator charger can support charging continuously at a high power of 800W during driving for portable power stations, which is 8 times the power of a cigarette lighter.

Solution to the problem that the EcoFlow WAVE 2 add-on battery does not work with the alternator charger.

Please first connect the EcoFlow WAVE 2 add-on battery to EcoFlow WAVE 2, and then upgrade the firmware to the latest version through the app.

How can I tell if the alternator charger is applicable to my car?

The alternator charger operates with an input voltage of 11V-35V, so in theory, any vehicle with a starter battery operating on a 12V or 24V voltage can use this product.

What protections are in place for the alternator charger in a car?

Reverse polarity protection/overcurrent protection/short circuit protection/overvoltage and undervoltage protection.

How many operation modes are there for the alternator charger?

1. Charging mode: Strictly speaking, it is the car's alternator charging the battery of the portable power station, with the car's battery acting as a load to conduct the current. 2. Reverse charging mode: The portable power station charges the vehicle starter battery or the RV house battery reversely at a rapid rate, with a relatively high current. 3. Battery maintenance mode: Similarly, the portable power station charges the battery, but with a smaller current.

What does the indicator light on the alternator charger mean?

Green light: Charging mode; Blue light: Battery maintenance mode; White light: Reverse charging mode; Yellow light: Unbinding success indicator; Red light: Device failure indicator.

How does the alternator charger automatically start and stop?

The alternator charger operates based on voltage recognition, and it can charge when the input voltage is greater than 13V.

What type of vehicles are suitable for installation? Do they all reach the maximum charging power of the alternator charger?

Based on the principle of the alternator charger, gasoline vehicles are the most suitable for use, while hybrid and range-extended vehicles can also be adapted. The specific operating power depends on the surplus power of the vehicle's alternator, so the charging power may fluctuate. Additionally, some older or special models may not work properly due to overall low voltage.

What is the overall size of the alternator charger?

242x194x35 mm

What is the input of the alternator charger?

Charging mode: 11V-35V, 76A Max Battery maintenance mode: 40V-60V, 3A Max Reverse charging mode: 40V-60V, 21A Max

What is the output of the alternator charger?

Charging mode: 40V-60V, 800W Max Battery maintenance mode: 13.8V/27.6V, 100W Max Reverse charging mode: 13.8V/27.6V, 800W Max

What are the operating and storage temperatures of the alternator charger?

Operating temperature: –20°C to 60°C Storage temperature: –30°C to 70°C

Will installing an alternator charger affect my car's warranty?

Please confirm with your vehicle manufacturer regarding vehicle warranty issues.

EcoFlow 800W Alternator Charger Specifications

Model EF-FC-301-1
Net Weight
5.1 lb (2.3 kg)
Dimensions (W × D × H) 9.5×7.6×1.4 in | 242×194×35 mm
  • Frequency: 2412MHz-2472MHz
  • Maximum output power: <20dBm
  • Frequency: 2402MHz-2480MHz
  • Maximum output power: <10dBm
Charging Mode
  • Input: 11V-31V, 76A Max.
  • Output: 40V-60V, 800W Max.
Battery Maintenance Mode
  • Input: 40V-60V, 3A Max.
  • Output: 13.8V/27.6V, 100W Max.
Reverse Charging Mode
  • Input: 40V-60V, 21A Max.
  • Output: 13.8V/27.6V, 800W Max.
Fuse's Rated Current 125A
Protection Type
  • Reverse polarity protection
  • Overcurrent protection
  • Short circuit protection
  • Overvoltage protection
  • Undervoltage protection
Operating Temperature –4℉ to 140℉ | –20℃ to 60℃
Storage Temperature –22℉ to 158℉ | –30℃ to 70℃
Storage Humidity ≤95%

Customer Reviews

Based on 103 reviews
James B.
Great battery backup solution

Cant' say how grateful we are to have found Outbound Power and the EcoFlow Delta 2 Max battery backup solution. Powered our fridge/freezer and portable cooler wih plenty of leftover power (with the extra battery) for on/off power during a 16 hour power outage. Kept the living area cool and the food fresh as noo one wants to waste $400.00 worth of fresh food/meat. Service from Outbound Power and customer service is excellent, followed up after the sale to ensure we were satisfied. Highly recommended!


Ordered from Outbound Power, great customer service and good pricing. The 2 items connected together make the perfect solution to keep our home cool and fridge
/freezer running in 110 heat when the power went out for 10+ hours. Very happy with our purchase and the customer service!

Thanks so much for your kind review and of course we are happy you are satisfied with the Delta 2 Max. It was our pleasure to be of service!

david p.
Great value for the price

6000 plus watts delived for less than $3200 when i bought it. Works great.

Thank you for your review and we're pleased to learn this setup works great. We appreciate your business and please feel welcome to be in touch anytime if we can ever be of service!

Robbie T.
Excellent whole house backup system.

Two Delta Pro Ultras with a total of 12.28 kwh of battery powered the roof AC and all the appliances for 3 hour. Looking forward to adding more batteries in the future. Much better than a gas generator and doesn't make all the noise.

Outstanding! This is fantastic news and we could not be happier with your satisfaction with the Delta Pro Ultra. We are always available if we can ever be of service!

Patricia B.
So far, so good

We ordered one Ecoflow Delta Pro Ultra inverter and one battery a few weeks ago. We wanted to see how they performed and decide if it would be the right system for us. The inverter and battery did everything they were supposed to do and performed flawlessly. We are so pleased that we will be expanding our system with another inverter and battery (batteries) very soon.

We are thrilled to learn you are satisfied with your Delta Pro Ultra. It has been our pleasure to be of service and please feel welcome to contact us anytime if we can ever be of further assistance!