- Note: The terms "DELTA" and "RIVER" as mentioned on this page refer to products exclusively manufactured by ECOFLOW INC. RIVER/RIVER 2/RIVER 3 series only support XT60 port. Delta series both supports XT60 and XT150 ports.
- Note: When installing the Alternator Charger main unit, make sure not to block the power button. After connecting the Alternator Charger to the portable power station（both River and Delta Series） via the XT60 port, you need to press the power button each time you turn on the car to turn it on before initiating charging through the app.
Top up 1kWh (85Ah@12V) in only 2.1 hours
Stay powered on the go with the EcoFlow 500W Alternator Charger. Using excess energy from your vehicle, it restores your EcoFlow power station up to 5× faster than standard 12V auxiliary sockets — topping up 1kWh (85Ah@12V) in only 2.1 hours. Its built-in DC-DC converter ensures efficient charging while you drive.
Triple the value with a 3-in-1 functional design
Save space, time, and money with a smart 3-in-1 solution: charger, battery maintainer, and jump starter. With fast and efficient charging capabilities, this all-in-one device keeps your essentials powered no matter how far your journey takes you.
* The 500W Alternator Charger comes with an XT60 cable, but does not support reverse charging & battery maintenance functions with the XT60 cable. To enable reverse charging & battery maintenance functions, purchase the XT150 cable and use with an EcoFlow DELTA Series product.
Triple the value with a 3-in-1 functional design
Save space, time, and money with a smart 3-in-1 solution: charger, battery maintainer, and jump starter. With fast and efficient charging capabilities, this all-in-one device keeps your essentials powered no matter how far your journey takes you.
* The 500W Alternator Charger comes with an XT60 cable, but does not support reverse charging & battery maintenance functions with the XT60 cable. To enable reverse charging & battery maintenance functions, purchase the XT150 cable and use with an EcoFlow DELTA Series product.
Triple the value with a 3-in-1 functional design
Save space, time, and money with a smart 3-in-1 solution: charger, battery maintainer, and jump starter. With fast and efficient charging capabilities, this all-in-one device keeps your essentials powered no matter how far your journey takes you.
* The 500W Alternator Charger comes with an XT60 cable, but does not support reverse charging & battery maintenance functions with the XT60 cable. To enable reverse charging & battery maintenance functions, purchase the XT150 cable and use with an EcoFlow DELTA Series product.
Compatible with all EcoFlow and most third-party power stations
Equipped with an XT60 connection, the 500W Alternator Charger works seamlessly with EcoFlow RIVER and DELTA Series power stations, as well as many third-party models. Designed for SUVs, pickups, and RVs, its fast-charging ability covers everything from short camping trips to extended road adventures.
*When using an XT60 cable, the Alternator Charger switch on the device must be manually turned on and the charging function enabled in the app before charging can begin. Therefore, if planning to use the XT60 cable for output, avoid concealed installation of the Alternator Charger in advance.
Traditional vs. EcoFlow Portable Dual Battery Systems
Traditional vs. EcoFlow Portable Dual Battery Systems
How to Choose your EcoFlow Alternator Charger
How to Choose your EcoFlow Alternator Charger
More Detailed Specifications for 500W & 800W Alternator Charger
More Detailed Specifications for 500W & 800W Alternator Charger
Boost Your 4WD Battery Performance
Easily adaptable to both 12V and 24V 4WD batteries, this charger connects with EcoFlow portable power stations to safeguard your vehicle’s battery while expanding your energy storage by up to 7.2kWh* when paired with DELTA Pro 3 and its Extra Battery.
Clean, easy install without leaving a mark
Connect your 500W Alternator Charger to your vehicle's starter battery or RV's house battery to enjoy a worry-free power experience during your journey.
Clean, easy install without leaving a mark
Connect your 500W Alternator Charger to your vehicle's starter battery or RV's house battery to enjoy a worry-free power experience during your journey.
Clean, easy install without leaving a mark
Connect your 500W Alternator Charger to your vehicle's starter battery or RV's house battery to enjoy a worry-free power experience during your journey.
Safety-assured for any journey
Built with advanced Gallium Nitride (GaN) technology for excellent thermal resistance, the 500W Alternator Charger provides dependable performance on every drive. Safety features such as undervoltage protection prevent excessive draw and protect your starting battery. Backed by a 2-year warranty, it’s the secure way to stay powered wherever you go.
What's in the box
Specs
Model
EF-MS-H02-1
Net Weight
5.7 kg
Dimensions (W × D × H)
242×194×35 mm
Wi-Fi
Frequency: 2412MHz-2472MHz
Maximum output power: 18.22dBm
Bluetooth
Frequency: 2402MHz-2480MHz
Maximum output power: 7.89dBm
Charging Mode
Input: 12V/24V⎓(11V-31V⎓), 45A Max.
Output: 40V-60V⎓, 500W Max.;24V⎓, 360W Max.
Battery Maintenance Mode
Input: 40V-60V⎓, 3A Max.
Output: 13.8V/27.6V⎓, 100W Max.
Reverse Charging Mode
Input: 40V-60V⎓, 13.2A Max.
Output: 13.8V/27.6V⎓, 500W Max.
Fuse's Rated Current
125A
Protection Type
Reverse polarity protection / Overcurrent protection / Short circuit protection / Overvoltage and undervoltage protection (Provided with integral protection against overloads)