EcoFlow 3-in-1 alternator charger – 500 W: efficient charging directly from the vehicle engine
EcoFlow 3-in-1 alternator charger - 500 W is an innovative solution for all travelers, caravan drivers, SUVs or pickups who want to fully utilize the power of their vehicle. This intelligent alternator charger simply connects to the vehicle's alternator and converts its excess energy into fast and efficient charging of EcoFlow battery stations or other compatible batteries. Thanks to the charging power of up to 500 W, it can charge a capacity of 1 kWh in just 126 minutes, which is up to 5x faster than conventional car chargers.
3-in-1 function – fast charger, battery maintenance and jump starter
1. Charging mode:
During normal driving, it uses the excess power of the alternator and charges the battery station or accumulator. Ideal for longer trips or caravanning.
2. Reverse charging mode (Jump Start):
In case the vehicle does not have enough power to start, the device can temporarily supply high current from the battery station and start the engine even with a discharged battery.
3. Battery maintenance mode:
During prolonged standstill or parking, it helps to keep the starter battery in optimal condition and extends its life by means of a small reverse current.
Capacity expansion and efficient energy management
In motorhomes, the EcoFlow 3-in-1 alternator charger can also serve as an additional power source to expand the capacity of your battery station. Thanks to GaN (gallium nitride) technology, it achieves high energy transfer efficiency and minimal heat loss.
It is compatible with most battery stations on the market, achieving the best efficiency in combination with EcoFlow products (e.g. Delta 2, Delta Pro, River 2 and others).
Maximum safety and reliability
EcoFlow takes care of your safety. The charger is equipped with protection against reverse polarity, overvoltage, undervoltage, overcurrent and short circuit, which guarantees safe use even in difficult conditions.
A durable body and high-quality materials make this device a reliable partner for every journey - from city rides to expeditions.
Package contents
EcoFlow 3-in-1 alternator charger – 500 W
Mounting plate
Cable ties
Bolts and nuts (M5, M6)
XT150 input and output cable
Fuse and self-tapping screw
Manual and warranty card
Technical specifications
Model: EF-MS-H02-1
Power: up to 500 W
Input voltage: 12–24 V⎓ (max. 45 A)
Output voltage: 40–60 V⎓
Dimensions: 242 × 194 × 35 mm
Weight: approx. 1.6 kg
Operating temperature: -20°C to 60°C
Protection: reverse polarity, overvoltage, overcurrent, short circuit, undervoltage
Technology: GaN (Gallium Nitride)
Who is the EcoFlow alternator charger ideal for?
For caravanners and campervan enthusiasts
For owners of SUVs, pickups and off-road vehicles
For travelers who need a reliable power source on the go
For EcoFlow battery station users who want to charge faster and more efficiently
Summary of benefits:
Charging power up to 500 W
3-in-1 function : charging, battery maintenance, jump start
5x faster charging than conventional car chargers
GaN technology for higher efficiency
Safety protection against overload, reverse polarity and short circuit
Easy installation and compatible with most vehicles
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