has DJI Phantom 4 Portable Car Charger Kit, Black (CP.PT.000377) [buydig.com]
on sale for $20.00 w/ Free 2-Day Shipping. No code required.
The Car Charger for Phantom 4 is used to charge the Intelligent Flight Battery or remote controller through a car's cigarette lighter port. It comes with low-voltage protection and overheating protection which automatically cut off charging if your starting battery voltage is too low or cigarette lighter port exceeds a certain temperature.
Price Reference: Amazon: $45.80. B&H: $62.00. Newegg: $62.00. Adorama: $62.00. beachcamera: $23.00