attery Car Charger 17.5V 4A Battery & Transmitter Outdoor Charger for DJI Phantom 4 Item name: Intelligent Battery Car Charger 17.5V 4A Battery & Transmitter Outdoor Charger For DJI Phantom 4 Input: 12V Output: 17.5V 4A Charging time: About 80-90 mins Suitable for: DJI Phantom 4 Package included: 1 X charger