- 🔥OEM AC Adapter battery Charger For Xiaomi electric scooter 4 ultra.there are 120v version (USA)and 240 version (EUROPE) show in last picture. please let me know which one you need. if you have other model from xiaomi and not sure about the charger type and voltage please send me a picure of your charging port and the voltage of the battery. i will look it up for your. thank you for looking.