... ,36V4A,48V3A):Automatic 3-stage charging, switching mode & high frequency. Electric Bike Charger(12V8A,24V5A,36V4A,48V3A) Specifications:Size:150*90*50mmNet ... , aluminium housing4. Efficient (efficiency ≥88% full load)5. There is a fan to create forced air to cool the charger when ...