EcoFlow 500W Alternator Charger
Charge your power station on the go—up to 5× faster than standard outlets. This compact 3-in-1 unit is a charger, maintainer, and jump starter in one.

Product Highlights
- Recharges 1kWh in just 2.1 hours while you drive
- 3-in-1 charger, battery maintainer, and jump starter
- Compatible with EcoFlow RIVER & DELTA and most third-party power stations (for EcoFlow DELTA Series, EcoFlow 800W Alternator Charger is recommended)
- Uses XT60 / XT60i power cable for quick and easy connection
- Quick 3-step installation
- Ideal for SUVs, RVs, and pickup trucks
- Enhances RV battery storage capacity
* Reverse charging and battery maintenance functions require the XT150 cable and an EcoFlow DELTA Series product.
* DELTA Pro requires a Smart Generator Adapter. Third-party stations support charging only.
Fast & Smart Charging On the Road
Restore power 5× faster than standard in-car outlets using your vehicle's alternator. The built-in DC-DC converter charges your power station while you drive—no extra stops required.

Three Flexible Charging Modes
- Charging Mode: Use your vehicle's alternator to recharge your portable power station.
- Reverse Charging Mode: Send power from your station to your car or RV starter battery.
- Battery Maintenance Mode: Maintain long-term battery health with low-current output.
Built-In Safety, Every Drive
GaN technology reduces heat for safer operation, while protections against overcurrent, reverse polarity, and voltage spikes ensure reliability. Under-voltage protection safeguards your vehicle's starter battery. Covered by a 2-year warranty.
What's in the Box
Technical Specifications
Product Model | 500W Alternator Charger (XT60 cable included) |
Alternator Recommendation | For vehicles with alternators rated below 150A (typically draws up to 45A). |
Output Side Recommendation | Ideal for up to 1kWh power stations. Achieves a full charge in ~2.1 hours at 500W. |
Vehicle Type | All vehicle types supported. |
Recommended Devices for charging | EcoFlow RIVER Series, Third party portable power stations. For EcoFlow DELTA series, either the 500W or 800W Alternator Chargers are suitable |
General | |
Model | EF-MS-H02-1 |
Weight | 1.6 kg |
Dimensions | 242 × 194 × 35 mm |
Operating Temp | –20℃ to 60℃ |
Storage Temp | –30℃ to 70℃ |
Humidity (op/storage) | ≤95% |
Wireless | |
Wi-Fi | 2.4GHz, max output: 18.22 dBm |
Bluetooth | 2.4GHz, max output: <10 dBm |
Protection | |
Safety Features | Reverse polarity, overcurrent, short circuit, over/undervoltage protection |
Fuse Rating | 125A |