DSTE CT-3650 DC128 Travel Charger Kit for VholdR ContourHD VholdR ContourGPS VholdR Contour2+ Digital Camera Battery Worldwide voltage Input: AC 110-240V 50/60Hz A 12V Car Lighter Adapter Convenient for Journey Built in battery protection and fault detection, will automatically stop when the charging is complete Build in MCU, automatically stop working when improper input voltage, short circuit or overheat Build in trickle charge IC, prevent the batteries from over-charged.