Description
The EcoFlow 500W Alternator Charger is an EcoFlow charger that tops up a power station from the car’s alternator while you drive, at up to 500 W. That is five times more than a cigarette lighter socket: the station gains 1 kWh in about 2.1 hours on the road. If you want to buy EcoFlow 500W Alternator Charger, below we cover which stations it works with and how it differs from the 800 W version.
How it works
The charger connects to the car’s starter battery, and its output goes through an XT60 cable to the station’s solar or car input. While the engine runs, it passes the alternator’s surplus power to the station. It suits vehicles with 12 V and 24 V systems: input voltage 11-31 V, current up to 45 A. The voltage at which charging starts can be set within 11-30 V.
Modes
Station charging
Up to 500 W at a 40-60 V output or up to 360 W at a 24 V output. The real power is also limited by the station’s own input: if its XT60 input takes 220 W, as on RIVER 3 Plus, the station gets up to 220 W.
Battery maintenance and reverse charging
The charger can maintain the car battery at up to 100 W and charge a flat car battery from the station at up to 500 W. EcoFlow notes that these modes do not work over the included XT60 cable: they need a separate XT150 cable and a DELTA station.
Specifications
| Parameter | Value |
|---|---|
| Model | EF-MS-H02-1 |
| Charging mode | Input 11-31 V, up to 45 A; output up to 500 W (40-60 V) or 360 W (24 V) |
| Battery maintenance | Up to 100 W |
| Reverse charging | Up to 500 W, with an XT150 cable |
| Fuse | 125 A |
| Operating temperature | -20 to 60 °C |
| Weight and size | 1.6 kg, 242 × 194 × 35 mm |
Compatibility
EcoFlow sells the charger in bundles with RIVER 2 Pro, RIVER 3 Plus, DELTA 2, DELTA 3, DELTA 3 Plus, DELTA 3 1500, DELTA 3 Classic and DELTA 3 Max. In our catalogue these include the EcoFlow RIVER 3 Plus, the EcoFlow DELTA 3 Classic and the EcoFlow DELTA 3 Max. According to EcoFlow, the charger also works with some stations from other brands, but without battery maintenance and reverse charging.
Please note: in Europe EcoFlow now sells the updated Alternator Charger 600. We supply the 500W version; we will confirm the delivery time and availability when you order.
Installation
The charger’s wires connect to the car battery and the unit is mounted in the cabin or the boot. EcoFlow describes installation in three steps, but recommends leaving the job to a professional if you lack experience. Before buying, check that your car’s alternator has spare capacity.
FAQ
Which to choose: 500 W or 800 W?
For RIVER and stations with an XT60 input of up to 500 W, the 500 W version is enough. For a DELTA that takes 800 W through XT150, the EcoFlow 800W Alternator Charger is faster.
Will fuel consumption go up?
The charger takes the alternator’s surplus, so according to EcoFlow the effect on fuel consumption is minimal.
How do I order?
You can buy EcoFlow 500W Alternator Charger on its own or in a set with a station, and we will pick the right cable for your model.
