EcoFlow RIVER 3 Plus + 500W Alternator Charger
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Need portable power that recharges on the go? The EcoFlow RIVER 3 Plus + 500W Alternator Charger keeps you powered 5× faster while you drive.
The EcoFlow RIVER 3 Plus + 500W Alternator Charger bundle is the perfect match for anyone who wants reliable portable power and the convenience of fast recharging on the road. Whether you’re heading out camping, tackling a road trip, or just need backup for unexpected blackouts, this setup gives you freedom and peace of mind.
With the 500W Alternator Charger, you can recharge the RIVER 3 Plus up to 5 times faster than a traditional vehicle outlet. That means you can top up your power station in as little as 2.1 hours, all while using the excess energy your vehicle is already producing. Every kilometre driven becomes an opportunity to generate free, usable power.

Note: “DELTA” and “RIVER” refer to ECOFLOW INC. products. RIVER/RIVER 2/RIVER 3 only support XT60. DELTA supports both XT60 and XT150.
Note: Do not block the power button when installing the Alternator Charger. After connecting via XT60, press the power button each time you start the car before charging through the app.
Key Features of the RIVER 3 Plus + 500W Alternator Charger
- <10 ms pro-grade UPS for precision devices
- 600W rated output and 1200W X-Boost
- Up to 2× runtime for light-wattage appliances
- Expandable up to 858Wh with a wire-free connection
- Compact and lightweight
- 1-hr fast charging, no battery damage
- Up to 220W fast solar charging
- - <30 dB whisper quiet for 24/7 use
Safety is built into every part of the system. Thanks to Gallium Nitride (GaN) technology, the charger runs efficiently while handling high heat safely. It also features undervoltage protection, which ensures your vehicle’s starting battery is protected. Combined with a 2-year warranty, you get reliable performance with extra peace of mind.
Compatible across EcoFlow models and most third-party systems

The RIVER 3 Plus + 500W Alternator Charger is versatile too. With an XT60 connection, it’s designed to work seamlessly with EcoFlow’s RIVER and DELTA series, as well as many third-party power stations. It’s also compatible with most SUV, pickup, RV, and 4WD alternators, making it a dependable choice for different vehicles and lifestyles.
Maximum value with 3-in-1 multifunctional design
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.
Basic Battery Setups vs. EcoFlow Integrated Dual Power

RIVER 3 Plus + 500W Alternator Charger Specifications

EcoFlow Alternator Charger Selection Guide for Your Needs

Worry-Free 500W Alternator Charging for Every Journey
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.
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.
Start Charging
Plug in the output cable from the EcoFlow 500W Alternator Charger to the portable power station.
What's in The Box of RIVER 3 Plus + 500W Alternator Charger?
